Project 10sec lq4 91rs
#151
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From: Sacramento Ca
Car: 91 Pontiac Firebird
Engine: Killer SBC, w/ RV cam
Transmission: AutoMatic, w/ shift kit
Axle/Gears: Posi-Traction
Re: Project 10sec lq4 91rs
Cool build, you lost me when you put a carb on it. Why run DIS, cam/crank system, then put a carb on it?
Ford/Chevy, I understand, to each his own.
Why play with power valves and jets, when you can just "key stroke" your jetting, timing, fuel trim,RPM,WOT,MAP,ETC
Not hating, love the build
Ford/Chevy, I understand, to each his own.
Why play with power valves and jets, when you can just "key stroke" your jetting, timing, fuel trim,RPM,WOT,MAP,ETC
Not hating, love the build
#152
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Went to the track last night with new drag bar and lowered instant center
The good.
60' improved .040 best was 1.500
The bad
lost almost. 4 tenths in 330'On through 1/4
And 2-3 mph
The worse
Rear end makes very loud noise at decell. Rear diff feels crunchy while turning wheels by hand
Da was 300'to higher than last time I ran 10.97@ 124 yesterday I ran 11.39@121
The good.
60' improved .040 best was 1.500
The bad
lost almost. 4 tenths in 330'On through 1/4
And 2-3 mph
The worse
Rear end makes very loud noise at decell. Rear diff feels crunchy while turning wheels by hand
Da was 300'to higher than last time I ran 10.97@ 124 yesterday I ran 11.39@121
Last edited by 91_B4C_RS; 05-03-2012 at 03:18 PM.
#153
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
I wonder if that rear got tight and was holding me back a lil
#155
Joined: Sep 1999
Posts: 1,484
Likes: 42
From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
#156
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Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Spool fir sure contenplating going to a 4.30 gear.
#158
Joined: Jun 2002
Posts: 13,572
Likes: 26
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: Project 10sec lq4 91rs
i wouldn't do a gear change till you got it running really close to right. then once it's dialed in, gear accordingly
#159
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Not apart yet. Prolly gonna have to wait till after the wedding. I do have a set of 3.89's up in the attic. Hell maybe the gears are ok that I have in it. Never know
#160
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Work a 16 hour shift, cant sleep? what do you do???
passenger side bearing cap. cracked. bearing still looks good surprizingly. the adjustment mechanism is ****ed too.
looks like it spool new bearings reset up the gear.
what do you guys think about this gear pattern?
how much further should i move pinion in?
passenger side bearing cap. cracked. bearing still looks good surprizingly. the adjustment mechanism is ****ed too.
looks like it spool new bearings reset up the gear.
what do you guys think about this gear pattern?
how much further should i move pinion in?
#161
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From: Zanesville, Ohio
Car: 1984 Formula ws6
Engine: 370 LSX
Transmission: 4L80E with a brake and 4500 Stall
Axle/Gears: Moser 9" 4.30 gear
Re: Project 10sec lq4 91rs
Dude that really blows about the cap. I have a 4.30 gear in my 9" with a detroit locker. Go for the 4.30 if you have a taller tire.
#162
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Can't find a single place the sales the adjustment nuts ir the bearing caps.
#163
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
Re: Project 10sec lq4 91rs
What kind of 3rd member is that? If its a regular stock ford 9" I would spend a little money and step up to a strange s case or similar
#164
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
its a factory thirdmember. too cheap to upgrade right now ;(
#165
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
Re: Project 10sec lq4 91rs
Don't quote me on this but I don't think you can just get a new bearing cap, I think there machined to whatever center section there in. Might be better to get a junkyard one.
#166
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
#167
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Project 10sec lq4 91rs
think you can get a new center for pretty cheap if you don't care about strength rating
#168
Joined: Jun 2002
Posts: 13,572
Likes: 26
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: Project 10sec lq4 91rs
those yukon thru-bolt carriers looks pretty decent and aren't too pricey
#169
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Im looking around as we speak. What do you guys think about the gear wear pattern?
#171
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Joined: Jul 2005
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Im pretty sure that pattern is how it has wore in In the past. it does look like it needs to go in a lil but how much? I don't have a away of measuring pinion depth
#172
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Project 10sec lq4 91rs
around here we have a local guy that for $100-150 will regear a 9" for us. Since it's cheaper than the gear itself I just pay it out lol
#173
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: Project 10sec lq4 91rs
Glad I got a chance to catch up on this thread, started following at first, but I hope you have plenty more left in that girl!
#174
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
Re: Project 10sec lq4 91rs
If you can't do the measurements and such yourself, I would have someone do it for you. Otherwise buy the proper equipment to do it correctly.
#175
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Joined: Jul 2005
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
wDid some investigation on why the bearing cap broke. some dumbass (91_b4c_rs) used new bolts for the carrier bearing adjuster hold downs. well the bolts were just slightly too long. long enough to dig into the adjusters. good thing was it really REALLY locked down the adjusters to the extreme so they couldnt move lol. bad thing is i pretty much created a jacking bolt putting pressure on the bearing cap. Live and learn.
Anyway.
got the rear back together just have to button up a lil odds and ends. be back on the road/track
new parts
Speedway motors chromolly 31 spline lightweight spool weighs in at 6.0lbs
Another factory 3rd member
new bearings
reused 4.11 gears
Anyway.
got the rear back together just have to button up a lil odds and ends. be back on the road/track
new parts
Speedway motors chromolly 31 spline lightweight spool weighs in at 6.0lbs
Another factory 3rd member
new bearings
reused 4.11 gears
#176
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: Project 10sec lq4 91rs
One thing i will always give props for on a 9 inch, the infinite use of the housing no matter what happens to a center section. That is a mean looking spool.
#177
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
Re: Project 10sec lq4 91rs
this isn't always true....sometimes you can see daylight through the back cover after a catastrophic event. it's rare, but i've seen examples lol
#178
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Project 10sec lq4 91rs
glad you're back on track for not much money tossed out there. I cringe if I were to hurt my thru-bolted moser center....doubt I could afford a new setup for this season.
#179
Joined: Jun 2002
Posts: 13,572
Likes: 26
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: Project 10sec lq4 91rs
for this season?^^i'd be glad to see you out before the end of 2013 at the rate you're going!
#180
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Project 10sec lq4 91rs
ya ya ya I may have 2 days off from my new business next week, so there will be solid progress. Of course this week I was supposed to have 3 free days, and I ended up doing 9 days of work in 7, so we'll see how that goes.
#182
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
New best time and mph then 6.899 1/8 at 99mph. 10.82 @125mph.
#183
Joined: Sep 2004
Posts: 1,320
Likes: 0
From: Verona Va
Car: 86 Trans Am,03 Yukon,92 Z28
Engine: 5.3, 5.3, lb9
Transmission: th350,4l60e,700r4
Axle/Gears: 3.73,3.73,2.73
Re: Project 10sec lq4 91rs
Just read the whole build! Lol great looking car and glad you are getting it squared away.
#184
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Went to tnt at lucas oil raceway last night. Made some suspension changes. Lowered instant center( lca position), set pinion at -4*and adjusted my homemade drag bar. Car leaves level now and seperation/ fenderwell gap is the same at launch as well as ride hieght. Also my front end shimmy after launch is gone
New best 60' 1.49
1/8. 6.809
mph 100.72
1/4. 10.72
Mph 126.24
I have a video of a 10.88 pass i made. Spun a lil i will post soon
New best 60' 1.49
1/8. 6.809
mph 100.72
1/4. 10.72
Mph 126.24
I have a video of a 10.88 pass i made. Spun a lil i will post soon
Last edited by 91_B4C_RS; 06-28-2012 at 11:02 AM.
#185
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
DA 2659 ft
#187
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Joined: Feb 2010
Posts: 1,446
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From: Orlando
Car: 1991 Camaro Z28
Engine: 357, Canfield heads, solid roller,
Transmission: Upgraded 03 Cobra T56
Axle/Gears: 9" 3.50 gears and Detroit Locker
Re: Project 10sec lq4 91rs
Awesome car and time! I have dreas of my car launching like that one day
#189
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
me too man should run hard at the track with a big stall
#190
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
http://youtu.be/jmiesbTq3mk
10.81 run spun off line 1.59 60 ft dont have a good vid of my best pass of course lol
10.81 run spun off line 1.59 60 ft dont have a good vid of my best pass of course lol
#192
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
engine expired today.
took it for a spin after work drove for about 20 min, decided to lay into it from a 20 roll. stabbed the throttle shifted into 2nd at 6800 rpm, then car turned off and sounded like it dieseled a lil. pulled over tried to restart it. all it did was click click. engine wouldnt turn over. no holes in the block no oil on the ground oil looked good.
got a tow home an stared to tear it down. found timing chain wedged under crank gear and pan locking the engine up.
pulled heads they look good besides, found 9 bent valves, pistons were hit, #6 was hit so hard that it was sitting **** eyed in the cylinder. pulled the rest of engine down found...
-rod journal on crank thrashed all bearing look good and even the broken rod shows noheat damage
-2 ****ed up pistons
- 1 pulverised rod in 4 pieces (#6)
- 1 messed up rod from collateral damage.
- big hole in windage tray with a bunch of parts in the pan.
- cosmetic damage on inside of block from parts bouncing.
- 2 cylinders are scored and have bottom of cylinder chucked a lil ( almost looks like a block that has had the cylinders clearamced for a stroker lol)
- cam has 2 lobes that r a lil jacked up. gonna have to trash it. lifters still look great!!!
- jp single roller timing set still looks brand new. found all the pieces from the timing chain i can almost put it back together (see pic)
- bent pushrods
-2 bent rocker arm bolts
took it for a spin after work drove for about 20 min, decided to lay into it from a 20 roll. stabbed the throttle shifted into 2nd at 6800 rpm, then car turned off and sounded like it dieseled a lil. pulled over tried to restart it. all it did was click click. engine wouldnt turn over. no holes in the block no oil on the ground oil looked good.
got a tow home an stared to tear it down. found timing chain wedged under crank gear and pan locking the engine up.
pulled heads they look good besides, found 9 bent valves, pistons were hit, #6 was hit so hard that it was sitting **** eyed in the cylinder. pulled the rest of engine down found...
-rod journal on crank thrashed all bearing look good and even the broken rod shows noheat damage
-2 ****ed up pistons
- 1 pulverised rod in 4 pieces (#6)
- 1 messed up rod from collateral damage.
- big hole in windage tray with a bunch of parts in the pan.
- cosmetic damage on inside of block from parts bouncing.
- 2 cylinders are scored and have bottom of cylinder chucked a lil ( almost looks like a block that has had the cylinders clearamced for a stroker lol)
- cam has 2 lobes that r a lil jacked up. gonna have to trash it. lifters still look great!!!
- jp single roller timing set still looks brand new. found all the pieces from the timing chain i can almost put it back together (see pic)
- bent pushrods
-2 bent rocker arm bolts
Last edited by 91_B4C_RS; 07-11-2012 at 10:54 PM.
#193
Joined: Jun 2002
Posts: 13,572
Likes: 26
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: Project 10sec lq4 91rs
as said elsewhere, sorry to hear this man...totally sucky...
#194
Joined: Sep 1999
Posts: 1,484
Likes: 42
From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
Re: Project 10sec lq4 91rs
Sorry to hear you lost your engine. Going to build another similar engine or just install a junk yard 6.0 to hold you over?
#195
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Probably try to put it back the way it was. Or do a stroker.
#197
Thread Starter
Member
Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
instead of having the cylinders repaired on my block, and be afraid it would blow out, i decided to buy another donar engine
2006 silverado lq4 complete engine. runs but low oil pressure. bad cam bearing.
$500.00
some one is picking up the 317 heads for $150.00 saturday
off to the machine shop .030 over and cam bearings.
GOOD NEWS. was able to save the cam from old engine. the lobe damange was a molten piece of metal that bonded to the surface. chiselled it off and hitthe lope with 400 grit, then 1500 gritt . smooth!!!
2006 silverado lq4 complete engine. runs but low oil pressure. bad cam bearing.
$500.00
some one is picking up the 317 heads for $150.00 saturday
off to the machine shop .030 over and cam bearings.
GOOD NEWS. was able to save the cam from old engine. the lobe damange was a molten piece of metal that bonded to the surface. chiselled it off and hitthe lope with 400 grit, then 1500 gritt . smooth!!!
Last edited by 91_B4C_RS; 07-26-2012 at 07:47 PM.
#198
Joined: Jun 2002
Posts: 13,572
Likes: 26
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: Project 10sec lq4 91rs
woot man, glad you're rebuilding. going back to a 370 or going to stroke it?
#199
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Mini update.
6.0 block is back from machine shop. Got new cam bearings, bored. 030 over, hot tanked, and a coat of black paint.
- Got my scat 6.100" forged h beam rods with arp rod bolts, 2 racetec pistons, and a ring set, comp double roller chain, 3 pushrods, and. Ordered a set of lightweight ls3 valves this time.
- cleaned crank up and set it in using oem replacement speedpro bearings, ended up with less than . 001" main bearing clearance with plasticguage. TOO TIGHT!!. took bearings bavk to advance auto and ordered a set of 152m1x coated 3/4 groove bearing. +.001" oversized.
Went ahead and opened piston ring gaps up to. 020" top and. 021" 2nd ring. From. 018"/.018" due to an aquired zex parimeter plate.
6.0 block is back from machine shop. Got new cam bearings, bored. 030 over, hot tanked, and a coat of black paint.
- Got my scat 6.100" forged h beam rods with arp rod bolts, 2 racetec pistons, and a ring set, comp double roller chain, 3 pushrods, and. Ordered a set of lightweight ls3 valves this time.
- cleaned crank up and set it in using oem replacement speedpro bearings, ended up with less than . 001" main bearing clearance with plasticguage. TOO TIGHT!!. took bearings bavk to advance auto and ordered a set of 152m1x coated 3/4 groove bearing. +.001" oversized.
Went ahead and opened piston ring gaps up to. 020" top and. 021" 2nd ring. From. 018"/.018" due to an aquired zex parimeter plate.
#200
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Joined: Jul 2005
Posts: 372
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From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
Re: Project 10sec lq4 91rs
Back together