V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

the V8 gremlins are at it again........

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Old 08-04-2001, 11:11 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
the V8 gremlins are at it again........

thinking about the 3.4 i am considering building.......i am now wondering about building a carbed 350 instead.......i know this upsets you v6 guys........but i just dont know what to do.......how hard would it be to pass emissions with a carbed 350???? say its a mild engine with about 250/300 HP.............also.....how would i go about fitting my EGR system onto it??? this way 2, i can bypass all the computer nonsense involved..............is there anything else that would have to be drastically changed..............besides the tranny, springs, exhaust, radiator....???
Old 08-05-2001, 02:04 AM
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Car: 1983 Pontiac Firebird
Engine: 400HP 350
Transmission: 700R4
Axle/Gears: 3.42
How about cutting and welding in new motor mounts those are a B**** to install, and if you don't line them up right your engine will sit ****-eyed. stick with the v6, don't be a square, be a circle, be different, break the mold, you can get 300+hp out of a v6 you know, example Turbo Trans Am, 325hp stock, wouldn't you feel good if you beat a V8 with a v6, think about how bad the guy with the v8 would feel. He would be pissed to see a 300+hp V6 kick his @$$ it's the great kick in the pants, beaten by a v6.

Rob

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Old 08-05-2001, 06:00 AM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
yeah, i guess your right.......i just dont know what to do with the computer problem i'll prolly have when i put a worked 3.4 under my hood
Old 08-05-2001, 11:18 AM
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Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
I would check around the motor swap board.
Basicly you need a "complete" v8 car for all the goodies. I would post a topic in motor swap "2.8 to 350 swap, but need to pass emmisions still" somthing along those lines.
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Old 08-05-2001, 11:22 AM
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<font face="Verdana, Arial" size="2">Originally posted by fiream:
How about cutting and welding in new motor mounts those are a B**** to install, and if you don't line them up right your engine will sit ****-eyed. stick with the v6, don't be a square, be a circle, be different, break the mold, </font>
That's a load of BS. It doesn't involve any cutting or welding, the holes are right there in the crossmember for V-8 and V-6 mounts. Emissions are going to be a problem, your not going to pass a carbed V-8 through an emissions test for a EFI V-6. You could always go with an EFI V-8. That you could get by with.

I'll add, stick to what you want, be yourself and build the car you want. Not the car that other people want. You have to drive it. You made the payments on it.
Old 08-05-2001, 11:43 AM
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Cutting and welding V8 mounts? ummmm no.... Your V6 car comes with the V8 holes already in the frame. Its a matter of taking out the old ones and putting in the new. use the forward most holes. You will have to move the passenger brake line to do this. I have talked with people who have done this and they say the HARDEST part was installing the new V8 mounts. The rearend will work - its a V8 rearend already, your drive line should matchup with a turbo 350 tranny. You will need a adapter plate for the tranny (75 to 90 bucks), the exhaust from the cat back will work for a V8. The front springs will work - altho the car will sit a inch lower and not handle as well unless you change em to V8 front springs. You can get a carb'ed 350 to pass on emissions - i have SEEN it done here in texas - tune the carb out and run it leaner. Where you will have your problem is the VIN check to visual check. You will need a V8 radiator as well. All in all it is a 1 week job and NOT impossible to do. Search the swap boards and ask questions of those that have done it. Its not a easy thing to do but it is possible and can be done.


David
Old 08-05-2001, 01:02 PM
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Car: 1989 IROC Camaro
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I've done the swap but went to a big block HO454. The motor mounts just have to be repositioned forward to a different set of holes on the frame. You can go for a TH350 or 400 but you'll have to by an adapter kit from B&M for example and recut the drive shaft shoerter. Forget about re-using the tach in the dash since it is electronically calibrated for a v6. You'll have to buy a whole new cluster that was in a v8 car. I may be selling one if your interested. I guess you're not worried about a visual emissions inspection, otherwise it would fail as soon as the hood is opened.

IMO, it would be much easier and less headaches to find a scrapped Camaro with a v8 and do a change over or just sell your car. It really isn't worth the hassle.
Old 08-05-2001, 01:13 PM
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Dude, this should be a dead issue...even if it was a snap to throw in, you will NEVER pass NJ dyno emissions. No carbed, basic 350 will be able to pass the sniffer in a car meant to have a 3.1 MPFI. If you go all the way and do a 350 TPI and hook EVERYTHING up right, you will probably not have a problem...

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Old 08-05-2001, 09:50 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
yaa, screw an 8.........too much work........i'll save that project for when i buy my own house and want to build a 1991 572 Z28........hehehehe

yeah, plus i wanna show those 8 guys what our 6's are capable of
Old 08-05-2001, 10:53 PM
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Car: 1983 Pontiac Firebird
Engine: 400HP 350
Transmission: 700R4
Axle/Gears: 3.42
v6 all the way baby!!!!

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Old 08-06-2001, 06:26 AM
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On a side note to this, would you believe some guy with a ram air laughed when he saw my TTA this weekend. He said why dont you take that V6 out and put in a 350? Who want a performance car with a V6? I kinda chuckeled and asked if he would like to race them?
He said your kidding right, you actually think you can even keep up?

So I took him out to the back road and handed him his *** and quickly went home. THe car doesn't have plates yet because I haven't got it inspected by the Highway PAtrol. So I have to be real careful about having it on the road.

The response heard later...."What the hell is that thing?"

------------------
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Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!
Old 08-06-2001, 06:32 AM
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Car: 1991 Corvette Coupe
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Transmission: 700R4/4L60 same trans different name
thats awesome, Kyle, but yeah.....i'm just gonna need ALOT of help and adviced on the 3.4 i am going to be building....so bear with me with all my posts and questions .........i want it to perform like no other!!!!!!
Old 08-06-2001, 06:34 AM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
oh yeah, good news, i got in contact with Summit and they said they can get me custom pistons for a 3.4
Old 08-06-2001, 06:45 PM
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Car: 89 RS 355/ 89 IROC Convert
Engine: Hot Cam 355/TPI 305
Transmission: All 700r4's
I agree that you have to build what you want, but a 350 is a lot easier to get power out of.

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Old 08-06-2001, 08:53 PM
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Do it... But if your going to build it build it right.. Research chevy high performance and gm high tech.. Build a small block 400, some nice 342 rear gears with a posi, and a nice 700R4......
Old 08-06-2001, 10:18 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
well, i think i made up my mind........a Trans Am would be nice to add to the collection and i can get them here for dirt cheap............i'll keep the camaro and get a Trans Am once i can save enuff money.............my friend was actually gonna sell me his 89 305 TBI trans am for $2200, but my good old mom stepped in and said no................she doesnt want 2 cars that symbolize 80's white trash in her driveway........well F**K her.......cuz i turn 18 next month and i'll just keep the TA parked across the street heh
Old 08-07-2001, 12:27 PM
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<font face="Verdana, Arial" size="2">Originally posted by 1991tealRSt-topGuy:
................she doesnt want 2 cars that symbolize 80's white trash in her driveway</font>
Whit trash huh, well I have one of the nicest cars that GM ever made. How does that figure into whit trash. GOd that really pissed me off. These are nice cars and white trash cant even Fu(king afford a nice one. MAn Fu(k that $hit!!!!!

------------------
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Past Thirdgen:
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Old 08-07-2001, 03:18 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
<font face="Verdana, Arial" size="2">Originally posted by Kyle F:
Whit trash huh, well I have one of the nicest cars that GM ever made. How does that figure into whit trash. GOd that really pissed me off. These are nice cars and white trash cant even Fu(king afford a nice one. MAn Fu(k that $hit!!!!!

</font>
now Kyle, you realize that white trash opinion is my mom's and not mine right..............ok cool......like i meant no offense, i was just describing the way SHE thinks........ i think my camaro is made of friggin gold!!!!!!!!!!!! so be mad at her, not me..........(everythings cool now, right?)

Old 08-08-2001, 09:19 AM
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https://www.thirdgen.org/messgboard/...ML/001462.html

That's pretty much what ya need to know.
Anything else, is up to you.
I'd leave engine like it is and find out how much fun you can have buying a used, low milage running engine and slipping it under the hood, as is. IF the rest of your foundation (tranny, ignition, fuel system, chassis) is in good shape, then your mission is lots easier
Then add a 125 HP NOS kit and see what happens.
These 125 HP NOS kits were designed for street engines, as is, no fancy this or that, just slapping the kit on the engine and running with the BIG DOGS!

I'm getting my Firebird back today with the rebuilt tranny. The tranny guy confirmed what I always suspected, the previous tranny was worked upon and that's it, not done well. My tranny guy beefed up my tranny, slightly, because he knew I had a strong engine.
I can't wait.
I fix ignition problem, add my ram air idea and paint the fender. I already have a new rear tire, which I need, as I've almost worn it out, doing my 50 foot one leg burn outs (after the 3.4 swap)!
I want to try it at the races, real bad. Let every one know how well a 3.4 stock swap can perform.
I'd like to know too!!
Never drag raced at the track, YET.
Hey, atleast I admit it!
But, never lost a street race back in Van Nuys in the 80's. Against real cars (GTOs, Chargers, Chevelles, Porsche 911SC), not a rice cake.

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Chat Soon,
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Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA
Old 08-08-2001, 11:15 AM
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<font face="Verdana, Arial" size="2">Originally posted by 1991tealRSt-topGuy:


</font>
now Kyle, you realize that white trash opinion is my mom's and not mine right..............ok cool......like i meant no offense, i was just describing the way SHE thinks........ i think my camaro is made of friggin gold!!!!!!!!!!!! so be mad at her, not me..........(everythings cool now, right?)

[/B][/QUOTE]

I wasn't mad at you, I was just mad at the fact that someone said that, beside don't white trash usually Drive Ford trucks?
Old 08-08-2001, 03:24 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
yaaaaaa.......well i made up my mind......screw the raise in compression......i'm gonna order the 3.4 brand new from paceparts.com when the time comes.....its $1500

PLUS, i get a warranty.....(which will prolly void once i slap the nitro on) i gotta keep my parents happy

i MITE throw a cam in it though and prolly the rockers...........
Old 08-08-2001, 08:20 PM
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Nooooo.. Think LT1....
Old 08-09-2001, 07:12 AM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
HeHe....yeah LT-1.....an LT-1 is for corvettes!!! haha my camaro's a 6 and its gonna stay a 6 hehe

yeh...if i want an LT-1 that badly, i'll just buy a corvette when i get 20 grand.......i'm still deciding what kinda car to get when i get my new job next year........i'm keeping the camaro, so dont fret
here are my options:
68-72 Corvette Convertible
69 Camaro
94-96 Corvette
2000 Camaro SS
78 Silver Anniversary Corvette
1970 Camaro

what do you guys think?
Old 08-09-2001, 09:54 AM
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Funny, from your list, those are cars I already have.
And I am building a LT-1 engine to slip under the hood of my 1967 Camaro.
I gave away a 1969 Camaro and a1969 Firebird, recently, too.
Had to, 5 cars, one motorcycle no room.
BUT, now 4 outta 5 cars move finally! Motorcycle is next to get moving, real close.
Go find a used 3.4, it's easy and less expensive.
Just drop it under your hood and have fun. Add NOS for more fun.
BUT, you'll need a tranny first!!!! I know, I just got my 3.4 Firebird back with rebuilt tranny.

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Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA
Old 08-09-2001, 08:19 PM
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
yeh......hmmmmm......i would like to do a used one but my parents want me to do a brand new one........friggin parents.........i'm still gonna have to persuade them to lemme get the 70 vette or whatever i happen to get about one year from now.........i'm prolly gonna do the 3.4 with a cam, rockers and 90 HP nitro.........that should get me running......what high 14's?



------------------
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2000 saturn
198? Ford Crown Vic, (no i don't know why he bothered)
1990 Buick LeSabre 3.8
1986 Camaro 2.8
Newer Ford Explorer
Food that makes me sick: RICE
1991 Camaro RS 3.1 V6 5-speed
1991 Z28 Rims
dual snorkel intake
my motto: I CAN'T DRIVE 55
Old 08-11-2001, 09:36 AM
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Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
You. .. gave away.. .. a .. .. '69.. camaro... .. *sigh* uhh.. Ked, next time you're planning on giving away a '69, lemme know.. my dream at the moment is a '69 RS/SS =P

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Old 08-11-2001, 10:21 AM
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Yeah.
Let me give ya what came with the car.
NO front/back windows
NO doors
NO front end nor subframe
NO rear quarter panels
NO trunk lid
NO steering wheel nor column
NO TITLE
BUT, I did take the
12 bolt
Front head rest seats.
Chrome pedal trim
Headliner trim and sun visors.
I gave the rest to my friend at a wrecking yard to dispose of. It was in a shop, guy wanted it gone and it was there for reasons of non payment. He owned posession.
WHEN my future father in law found it in the garage of his house on a metal frame, I had to ditch it quick!
I TRIED TO SELL IT SO BAD!
For three months.
Boy, what he flipping out a bit!!
One thing he couldn't complain about.
No oil leaks in the garage
I wish I knew of this place, then.
HEY, I just tried to give away a 1969 Firebird, here. NO takers, either.
AND THAT ONE I HAD THE TITLE TO!
And yes, it is still up for grabs!
Email me, I'll tell ya the details.


------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA
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