DeadSkunk
DeadSkunk UberDork
4/13/17 9:46 a.m.

I'm thinking of the GM3800 V6 as a power unit for a Challenge car because a V6 would be an easier fit than a V8. The engine bay is pretty short. Stock, the Camaro version is listed as 205 HP, with a similar number for torque. Have any of you guys ever built one up for Challenge use, or any other use I suppose. Are there specific junkyard parts to hop one up a little, the cam from a supercharged one ,better heads, exhaust manifolds or whatever ?

SVreX
SVreX MegaDork
4/13/17 9:50 a.m.

Watching...

Seems like we are all noticing the 3800.

NickD
NickD SuperDork
4/13/17 9:50 a.m.

Nitrous. Lots and lots of nitrous.

DeadSkunk
DeadSkunk UberDork
4/13/17 11:25 a.m.

I've seen online threads where guys are running 100-150 shots of nitrous, so that would be in play.

wvumtnbkr
wvumtnbkr UltraDork
4/13/17 11:29 a.m.

I know it is a different engine family, but I am working on a GM 3400 engine into an RX7.

I know you can do a 3500 or a 3900 just as easily as the 3400. These are newer engines that are easy to find.

John Welsh
John Welsh MegaDork
4/13/17 11:32 a.m.

I am doing this from memory so I could be wrong but isn't there an issue where the rwd 3.8L is not the same as the fwd 3800?
I seem to remember something like if you put the fwd version in a rwd application there is nowhere to put the starter or that somehow the stock fwd supercharger doesn't work with a rwd application?

gearheadmb
gearheadmb Dork
4/13/17 11:37 a.m.

In reply to John Welsh :

The supercharger in a rwd puts the throttle body at the back of the engine with the plenum pointed rearward.

BrokenYugo
BrokenYugo MegaDork
4/13/17 12:41 p.m.

Keep the width in mind, the 3800 is a 90 degree V6, not the more common 60 degree bank angle.

singleslammer
singleslammer PowerDork
4/13/17 12:45 p.m.

In reply to gearheadmb:

The 3800 S/C swaps on but you have to use the S/C heads too if memory serves. I have seen some swaps online into Camaros. I will see if I can find one.

singleslammer
singleslammer PowerDork
4/13/17 12:48 p.m.
singleslammer
singleslammer PowerDork
4/13/17 12:49 p.m.

Could you use a Ford M90 super coupe inlet to point the intake towards front of the car.

81cpcamaro
81cpcamaro Dork
4/13/17 1:56 p.m.

The 3800 SC setup does need the SC heads, injectors are in the head instead of the intake like the NA 3800. But like the video singleslammer posted, you can get around the rear intake of the supercharger.

DeadSkunk
DeadSkunk UberDork
4/13/17 2:25 p.m.

I've measured the engine in Gearheadatoku's Firebird, and the width shouldn't be an issue. I have found a Camaro engine and transmission, so no worries about any potential bolt pattern differences between RWD and FWD.
I didn't realize that the heads were that different between N/A and supercharged engines, so that's good to know.
I had seen the elbow stunt to use the supercharger on RWD. I think I've also seen a side inlet, but that required a bunch of TIG welding, IIRC.

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