New setup at the track, Bring on the predictions!!
#1
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
New setup at the track, Bring on the predictions!!
alright like i said this will be my first time at the track with this car with new motor and suspension( not my first time in general)
for the details
Engine: 1998 vortec 5.7 stock bore
LT1 pistons
COMP xe274 w/ 1.6 roller tipped rockers
RPM airgap w/ 1" open spacer
750 quickfuel mechanical sec.
Summit billet dist and CDI box
15*base timing w/ 32 total at 3000rpm
Trans: th350 w/ shift kit and b&m holeshot 2800
Rear: stock 3.23's
Front suspension: Tokico illuminas set at 1
Iroc springs with 1 coil removed
swaybar disconnected
boxed in stock control arms
poly bushings throughout
Rear susp: J&M LCA's
umi LCARBS bottom hole
Jegster torque arm
non adjustable shocks
stock sway bar poly bushings throughout
at the track i will be on 26x11.5 et streets on corvette rallys
for the details
Engine: 1998 vortec 5.7 stock bore
LT1 pistons
COMP xe274 w/ 1.6 roller tipped rockers
RPM airgap w/ 1" open spacer
750 quickfuel mechanical sec.
Summit billet dist and CDI box
15*base timing w/ 32 total at 3000rpm
Trans: th350 w/ shift kit and b&m holeshot 2800
Rear: stock 3.23's
Front suspension: Tokico illuminas set at 1
Iroc springs with 1 coil removed
swaybar disconnected
boxed in stock control arms
poly bushings throughout
Rear susp: J&M LCA's
umi LCARBS bottom hole
Jegster torque arm
non adjustable shocks
stock sway bar poly bushings throughout
at the track i will be on 26x11.5 et streets on corvette rallys
#2
Moderator
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,169
Likes: 0
Received 136 Likes
on
114 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: New setup at the track, Bring on the predictions!!
13's?
Why such a low total timing? You're not running any boost.
Carb spacer is a tuning aid. Unless you've played with different spacers on a dyno, you'll never know if what you're using helps or hinders the engine.
Why such a low total timing? You're not running any boost.
Carb spacer is a tuning aid. Unless you've played with different spacers on a dyno, you'll never know if what you're using helps or hinders the engine.
Last edited by AlkyIROC; 10-13-2008 at 03:26 PM.
#3
Supreme Member
iTrader: (2)
Join Date: Dec 2006
Location: Hou. TX
Posts: 5,538
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: New setup at the track, Bring on the predictions!!
13.00 or better if your lucky. The gears hurt you a bit, a 700r has a deeper first gear.
#4
Supreme Member
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes
on
3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: New setup at the track, Bring on the predictions!!
13 is probably a safe bet, could hit 12s with good traction and better gears.
#5
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
ive been told these heads only like 32-34 total timing and when i had it at 36 it felt weaker up top. i'm runnin the spacer cause it came with my studs, which are too long to run without the spacer. figured it wouldnt hurt
#6
Supreme Member
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes
on
3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: New setup at the track, Bring on the predictions!!
I've read a lot of builds with those heads and most were around 34, some 32 and 36.
It shouldn't feel weaker unless it was detonating. If the same power is made at 32 and 36, then 32 should be used obviously.
It shouldn't feel weaker unless it was detonating. If the same power is made at 32 and 36, then 32 should be used obviously.
Trending Topics
#8
Senior Member
Join Date: May 2001
Location: springfield,IL
Posts: 745
Likes: 0
Received 0 Likes
on
0 Posts
Car: T/A / Grand Am
Engine: 383 SBC
Transmission: glide
Axle/Gears: 9" ford 5.67
Re: New setup at the track, Bring on the predictions!!
I'll say low to mid 14s after some tunning. That 274 cam probably don't make any power past 5800. Does comp cams still have their dyno graphs on line. The spacer is probably hurting more than helping. Stock heads and no headers = very low flow.
#10
Senior Member
iTrader: (3)
Join Date: Sep 2006
Location: Worcester
Posts: 629
Likes: 0
Received 1 Like
on
1 Post
Car: 1984 Firebird T/A
Engine: 406sbc
Transmission: TH400
Axle/Gears: Moser 9"
Re: New setup at the track, Bring on the predictions!!
I say mid 13's. I had a spacer and it was causing my car to rev like crap and crappy throttle response. I had a RPM on at the time.
#13
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
thanks for all the responses guys... I'm really not sure what its gonna run so all these different answers have got me even more excited to go.... i was gonna head to GLD this weekend but they have an event goin on so it will have to wait another week
if i even get a 12.9xxx at 104~ or so i will be happpy cause i know there is more power to be had through carb tuning..... and spray!
dyno graph http://www.compcams.com/Technical/Dy...74H-10_001.asp
the only differences here i have 1.6 rocker so the lift is 520 and my compression is 9.5:1
if i even get a 12.9xxx at 104~ or so i will be happpy cause i know there is more power to be had through carb tuning..... and spray!
dyno graph http://www.compcams.com/Technical/Dy...74H-10_001.asp
the only differences here i have 1.6 rocker so the lift is 520 and my compression is 9.5:1
Last edited by MaNiAk86; 10-14-2008 at 02:11 PM.
#14
Senior Member
iTrader: (2)
Join Date: Feb 2007
Location: anderson ,sc
Posts: 805
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89 formula/00 z28
Engine: carbed 350/ls1
Transmission: 700r4/ a4
Axle/Gears: 3.23 posi/ 3.73 posi
Re: New setup at the track, Bring on the predictions!!
i would not be happy with 104 mph my stock vortec run 102.43. u should be in the 107-112 range. which my camaro i aint showed me anything great and its about the same cumbo but has trick flow heads and best time on street tire has been 13.30 @105.99. which i going to trying runing it again this weekend. it had alot of converter slippages last time changed converter.
#15
Senior Member
Join Date: Mar 2008
Location: moberly, Mo
Posts: 345
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 rs
Engine: 383 290 cam aed carb
Transmission: th350
Axle/Gears: 4.10 ticking time bomb
Re: New setup at the track, Bring on the predictions!!
I have noticed that you have had a lot of different estimated ets. I think that all of them are possible. Your combo is relitively mild and seems well thought out, and that is what usually works out.
I think that a 12 second pass is very possible, but if it were me I would expect somewhere in the 13s to start out. Most new combos have a few bugs to work out, so I would not set your hopes to incredibley high for your first pass, and avoid any dissapointments when it does not run then high 11s somone else was able to get out of a similar combo, which seems to be incredibly fast to me.
I think that a 12 second pass is very possible, but if it were me I would expect somewhere in the 13s to start out. Most new combos have a few bugs to work out, so I would not set your hopes to incredibley high for your first pass, and avoid any dissapointments when it does not run then high 11s somone else was able to get out of a similar combo, which seems to be incredibly fast to me.
#17
Member
iTrader: (3)
Join Date: Feb 2007
Location: CT
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 RS
Engine: 01' LS1
Transmission: T56
Axle/Gears: 10 bolt auburn pro posi, 4.10 gears
Re: New setup at the track, Bring on the predictions!!
high 13s on motor. smaller cam, low 13s 100 shot. my opinion
----------
the slicks may help out though
----------
the slicks may help out though
Last edited by jimmy92rs; 10-22-2008 at 04:48 PM. Reason: Automerged Doublepost
#18
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
i think the different estimates ive recieved makes this even more interesting...
sunday SUNDAY sunday is the day we will all find out ( unless it rains )
sunday SUNDAY sunday is the day we will all find out ( unless it rains )
#19
Supreme Member
Join Date: May 2001
Location: Pitman, NJ
Posts: 2,009
Likes: 0
Received 5 Likes
on
4 Posts
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Re: New setup at the track, Bring on the predictions!!
I went 12.52 @ 108 with a 10:1 Vortec/XE274 350 and no tuning whatsoever. You should easily break into the high 12's with a combo like that assuming you have a "common sense" tune on the car.
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
#20
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
I went 12.52 @ 108 with a 10:1 Vortec/XE274 350 and no tuning whatsoever. You should easily break into the high 12's with a combo like that assuming you have a "common sense" tune on the car.
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
#21
Re: New setup at the track, Bring on the predictions!!
exactly... some ppl told me i'd be 12's... but i'm mid 11's and 10's on spray. vortec heads make power and that cam is big enough to push a car into the 12's with a decent tune
First time out may NOT produce the slips you want but eventually the car will get there
First time out may NOT produce the slips you want but eventually the car will get there
#22
Senior Member
Join Date: Mar 2008
Location: moberly, Mo
Posts: 345
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 rs
Engine: 383 290 cam aed carb
Transmission: th350
Axle/Gears: 4.10 ticking time bomb
Re: New setup at the track, Bring on the predictions!!
I went 12.52 @ 108 with a 10:1 Vortec/XE274 350 and no tuning whatsoever. You should easily break into the high 12's with a combo like that assuming you have a "common sense" tune on the car.
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
I once had a "pro" engine builder/tuner tell me my old Vortec 350 would run "low 13's at best." and I also had quite a few people tell me my current motor would run low 12's
#23
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
looks like rain this sunday... doesnt look like im gona make it out this year
#24
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
HEEY! guess what boys i made it to the track today... only one change i did not have the ETstreets on i ran on my 255 50 16 old asz bfg's. needless to say traction was an issue heres the slip from my best run
60ft- 2.086
330- 5.59
1/8- 8.46 @85.82
1000- 10.96
1/4- 13.074 @ 107.11
couple pics...(vids comin soon)
btw thats my friend anthony in the above pic. he was excited after my 13.07 pass hahaha
60ft- 2.086
330- 5.59
1/8- 8.46 @85.82
1000- 10.96
1/4- 13.074 @ 107.11
couple pics...(vids comin soon)
btw thats my friend anthony in the above pic. he was excited after my 13.07 pass hahaha
Last edited by MaNiAk86; 11-02-2008 at 10:06 PM.
#25
Member
iTrader: (3)
Join Date: Feb 2007
Location: CT
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 RS
Engine: 01' LS1
Transmission: T56
Axle/Gears: 10 bolt auburn pro posi, 4.10 gears
Re: New setup at the track, Bring on the predictions!!
was that with a drag radial? goodjob. My prediction was way off. I was thinking u had a tune port. my bad. put the et streets on, with 1.7 60 ft youll be well into the 12s.
Last edited by jimmy92rs; 11-02-2008 at 10:00 PM.
#26
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
no its a street radial thats about 3 years old haha.... i know with my other tires itll cut some decent 60's but i definetly need a gear and better posi for next time
#27
Re: New setup at the track, Bring on the predictions!!
does your friend drive the toyota? lol
Not bad for the first shot, next time with the good tires and other mods it should do really well!
Not bad for the first shot, next time with the good tires and other mods it should do really well!
#28
Member
iTrader: (3)
Join Date: Feb 2007
Location: CT
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 RS
Engine: 01' LS1
Transmission: T56
Axle/Gears: 10 bolt auburn pro posi, 4.10 gears
Re: New setup at the track, Bring on the predictions!!
thats awesome with the street tires. yeah the gears could be killing it. awesome job!
#31
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
cant wait to get some 3.73's and get back up there on a tire. then i'll really show those bolt on ls1's, stangs, and mopars what is up.
#33
Supreme Member
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes
on
3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: New setup at the track, Bring on the predictions!!
88iroc, your car moves and hooks well! Your page isn't working though, what cam and tires?
Last edited by Batass; 11-03-2008 at 06:53 PM.
#34
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
VIDS ARE UP...well its just one vid of 4 runs
http://www.youtube.com/watch?v=v1tsOhJ1zLw
http://www.youtube.com/watch?v=v1tsOhJ1zLw
#36
Supreme Member
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes
on
3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: New setup at the track, Bring on the predictions!!
Lol. A good bolt on ls1 probably runs low to mid 12's. You're gonna need a bit more power to impress them. A bigger cam will help a little, but a 50 shot would be your easiest bet.
Last edited by Batass; 11-04-2008 at 05:06 PM.
#38
Senior Member
Thread Starter
iTrader: (2)
Join Date: Sep 2005
Location: Highwood, IL
Posts: 743
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
Re: New setup at the track, Bring on the predictions!!
its all in the driver for the most part i think... yes 11's are possible on a tire in a well setup car, but as you can see in the vid i walked an LS1 with an exhaust
#39
Re: New setup at the track, Bring on the predictions!!
definitely dont underestimate ls cars, I walked one with 300 hp of nitrous on it...but there's a few i wouldnt want to run n/a while i am running the bottle
Thread
Thread Starter
Forum
Replies
Last Post
morrow
Suspension and Chassis
78
01-13-2024 12:29 PM
Doobie52
Engine/Drivetrain/Suspension Parts for Sale
0
09-11-2015 06:19 PM