My GM V6 turbo customer featured...

[ForcedFirebird]

Built this turbo kit a couple years ago and it made it to an on-line magazine...

http://www.bangshift.com/blog/Video-of-the-Week-The-Corsica-Q-Ship.html

3.4 liters, FWD, running on 7" slicks, still would only get a 2.0 60' due to spinning 2.0-2.2 60's 12.9-13.1 @ 106-113 et's do the math... :D

-john

[mrsleeve]

Yeah my brother has built a killer 3.4 dohc GM, with all custom internals and FMU and shit running a holset HX55 hopefully once its all done should hold 30ish psi and make close to 800whp The DOHC 3.4 has a great history and was/is a great gm engine other than the fact they do take a bit of TLC to keep maintained.

see this link for his build thread, he is Mrsleeve91

http://realfierotech.com/phpBB/viewtopic.php?f=3&t=15680&hilit=+mrsleeve91

[ForcedFirebird]

Nice!

Yeah I have a CNC/fabrication shop and work primarily on GM's (60 degree v6 in particular). Don't have much experience with the DOHC outside the normal tricks like cam timing etc. Aftermarket for the DOHC is nil-to-none.

Just got a vid back from another customer running my ported top end and got one of my custom cams installed. Doesn't sound too bad for a 3.4l v6 eh?...

He wanted lope, he got it - still not running right until he receives my obd1.5-obd1 swap kit, takes the engine several minutes to "learn" idle lol...

[s0urce]

That's some white trash turbo action right there

[ForcedFirebird]

That's some white trash turbo action right there

Worst part is the nice headers I built (ceramic coated), he covered them (and everything else) in header wrap. He didn't care what it looked like as long as it worked. He made those runs with a big speaker box and all haha.

Hey, if they are paying customers, why not? I don't care what it looks like, I'm not the one to be driving around in it ;)

[bachian8]

I was checking out that car out on y0utub3 a couple of months back. i've been wanting to build a 3400. or a 3500. i like them too. nice turbo kit. too bad that engine is in a corsica. however, very impressed.

[ForcedFirebird]

I was checking out that car out on y0utub3 a couple of months back. i've been wanting to build a 3400. or a 3500. i like them too. nice turbo kit. too bad that engine is in a corsica. however, very impressed.

What's it going in? My car has a Camaro 3.4 with 3500 heads on it, twin hairdryers - t04e 46 trim .50 a/r cold .63 a/r hot. I want to go full 3500 soon, but I need a tubular subframe to pull it off.

I am also building a 3.4/3500 11.56:1 SCR N/A Camaro right now, full tubular subframe conversion, full tubular front/rear suspension, 3200k stall, tubular tq arm, 12" vette dual piston brakes, Moser axle guts, cam, porting, MSD etc, LCA relocation, panhard relocation, LS6 springs, LS1 seats, SI stainless valves, 65mm TB conversion, full roller rocker conversion, head studs etc etc...

The 3500 heads outperform the 3400's by a mile. The 3400 with 3500 heads (even with the lower compression) will make more power...sounds kinda like the 885 heads on a stock 2.7 bottom in our e30's eh?

[JasonC]

Congrats. Although i have nothing to bring to this thread other then my truck with its 2.8 and lopy idle

[ForcedFirebird]

Congrats. Although i have nothing to bring to this thread other then my truck with its 2.8 and lopy idle

That sounds nice. What grind is that? Sounds like a 272-2. Carb or TBI?

[bachian8]

What's it going in? My car has a Camaro 3.4 with 3500 heads on it, twin hairdryers - t04e 46 trim .50 a/r cold .63 a/r hot. I want to go full 3500 soon, but I need a tubular subframe to pull it off.

I am also building a 3.4/3500 11.56:1 SCR N/A Camaro right now, full tubular subframe conversion, full tubular front/rear suspension, 3200k stall, tubular tq arm, 12" vette dual piston brakes, Moser axle guts, cam, porting, MSD etc, LCA relocation, panhard relocation, LS6 springs, LS1 seats, SI stainless valves, 65mm TB conversion, full roller rocker conversion, head studs etc etc...

The 3500 heads outperform the 3400's by a mile. The 3400 with 3500 heads (even with the lower compression) will make more power...sounds kinda like the 885 heads on a stock 2.7 bottom in our e30's eh?

i have a couple of 3400's that need rebuilding. i still have to find something to put them in. i was trying to convince my good friend to swap and build a 3400 in his 89 rs/camaro but i think were going to do the sc3800 long block and turbo it. but it's still talk for now.

i did not know the 3400/3500 combo made more power. i might looking into getting some of them heads. oh and your n/a camaro build sounds sweet!

[JasonC]

That sounds nice. What grind is that? Sounds like a 272-2. Carb or TBI?

Its a stock Goodwrench replacment engine :o.....Just has a 4.3tb. It started to idle like that one day. And i just liked the way it sounded, so really haven't looked to see what maybe the cause of it.

[ForcedFirebird]

Its a stock Goodwrench replacment engine :o.....Just has a 4.3tb. It started to idle like that one day. And i just liked the way it sounded, so really haven't looked to see what maybe the cause of it.

Lol. Nice. Is it the 3.4 truck engine replacement? You know 3500 heads will go on there and really wake up your truck. You would have to convert to MPFI (OBD1) or SFI (OBD2) since the manifolds on the aluminum heads have runners so large they cover the distributor hole hehe.

i have a couple of 3400's that need rebuilding. i still have to find something to put them in. i was trying to convince my good friend to swap and build a 3400 in his 89 rs/camaro but i think were going to do the sc3800 long block and turbo it. but it's still talk for now.

i did not know the 3400/3500 combo made more power. i might looking into getting some of them heads. oh and your n/a camaro build sounds sweet!

Here's a pic of the 3500 gasket on a 3400 head ;)



The port roofs were raised quite a bit, the exhaust ports were re-designed and the chambers made more efficient...





The 3500 heads flow well over 250CFM bare and 175CFM with the manifolds attached (minus throttle plate). The bare 3400 heads don't flow as good as the 3500's restricted by the manifolds.

I guess I can link you to the '93 Camaro build if you don't mind looking at pics...

http://s158.photobucket.com/albums/t87/forcedfirebird/Paul%20in%20VA%20mods/?start=all

The Camaro also got an ECM swap, aluminum rear drum brake conversion from a Grand National, and I forgot to mention the level 2 Performabuilt trans, sub frame connectors and true magnesium Corvette wheels :)

[JasonC]

Nope just the 2.8l... I got a built 383 stroker for the truck anyway.

[lennon]

guy in the shop next to me has a customer with one of these 3400/3500 fuel injected v6s in an MGB he built. i dont know much about the motors but seems like an odd engine choice.

[ForcedFirebird]

guy in the shop next to me has a customer with one of these 3400/3500 fuel injected v6s in an MGB he built. i dont know much about the motors but seems like an odd engine choice.

That's actually a popular swap. I deal with a few guys with 3x00's in various body styles. Stalkers, MGB's, F-body's, w-body's, j-body's etc.

The 4th and 5th generation 60 degree v6's pwn. The 3500 puts out well over 200hp, the 3500 and 3900 vvt are closer to 250, and the 3.6 DOHC in the new Camaro and Caddys put out "300hp" so GM claims, but the dyno results say otherwise lol.

Here's Marc's 3900-powered MGB (taking off at 1500 RPM in 2nd gear), he owns TCE Motorsports and KillerB.

0-75mph runs inside and outside car...

http://www.youtube.com/watch?v=uWKt2mSqqtU

http://www.youtube.com/watch?v=s6oWMM31Umw

and a 3900 TT in Joeseph's Fiero (tuning sessions)...

http://videos.streetfire.net/video/3900-V6-Turbo-Fiero-tunning-runs_159990.htm

Here's pics of the 3900 heads. They take the best of the 3400 and 3500 combined, but have nice things like VVT, variable intakes (no one has hacked yet to use on older ECM's), a unique coolant pattern that allows a lot of compression, and the bore of an LS1 :)...







Too bad we can't use the 3900 heads on an earlier block since GM moved the bores in such a way that the rod/piston bore centerline is 4cm below the crank center - thus moving the bores a few mm's to the outside of the block and would cause the chambers to overhang the deck just enough that you would have to bore the cylinders significantly more than .080" :(