Getting More Power: Super/turbocharger?

[ericjon262]

Is the LQ1 a radically different block than the normal 3400?

Sometimes DOHC engines are 100 percent different from SOHC/pushrod counterparts (the twin-cam version of my 1987 Nova's SOHC four cylinder was pretty much an entirely different engine), and sometimes the dimensions are pretty much the same. Sure all the plumbing would be different since the N body was never given the LQ1, but it would theoretically fit just fine...

TDC's are HUGE compared to a 3400...

[robertisaar]

the block itself, not too different dimensionally.... but the heads/cam carriers/intake/timing gear take up a LOT of room, even in a W-body.

[ItsVince725]

the 3.4 (DOHC, meaning LQ1) is going to be an interesting installation in a N-body..... i actually don't think anyone's done it before. a 3400, that's been done many times.

Is the LQ1 a radically different block than the normal 3400?

Sometimes DOHC engines are 100 percent different from SOHC/pushrod counterparts (the twin-cam version of my 1987 Nova's SOHC four cylinder was pretty much an entirely different engine), and sometimes the dimensions are pretty much the same. Sure all the plumbing would be different since the N body was never given the LQ1, but it would theoretically fit just fine...

[robertisaar]

the 3.4 (DOHC, meaning LQ1) is going to be an interesting installation in a N-body..... i actually don't think anyone's done it before. a 3400, that's been done many times.

[ItsVince725]

Swapping a 3400 and upgrading the cam and valve springs should get quite a bit of power over a stock 3100. And a cam upgrade is relatively inexpensive on a pushrod motor.

Wow, it makes that much of a difference?

I dunno about other cars, but the 3400 fitted to the Chevrolet Equinox was rated at 185 hp, which isn't much more than my 3100.

But if swapping the cam and valve springs produces a lot more power, it would be worth it. I would just have to go hunt down a good 3400...

[caffeine]

Swapping a 3400 and upgrading the cam and valve springs should get quite a bit of power over a stock 3100. And a cam upgrade is relatively inexpensive on a pushrod motor.

[ItsVince725]

I recommend installing a 3400 and obd2 before considering a turbo or SC swap.. I wish I had done a 3400 and obd2 before I built my first turbo kit. But if you want to do either a turbo or SC swap, it'll be several grand.

Swapping a pushrod 3400 would be rather pointless since it barely makes more power, but if I could find a 3400 DOHC and then maybe turbocharge that...it might be cheaper.

[young gun]

the L67s use a M90, the MP90 came from something else.

in reality, there isn't much of a difference between the two performance-wise.

IIIIIIIIIII feel dumb lol

[robertisaar]

the L67s use a M90, the MP90 came from something else.

in reality, there isn't much of a difference between the two performance-wise.

[young gun]

considering he whipped 12PSI out of it, it is most definitely an interesting option to pursue.

hopefully, we can go a step further and just use the M90s from the L67s and make the process even cheaper to get into.

Wait a sec...I thought he was using the MP90s from the L67's....

[robertisaar]

Probably better off to wait for AleroB888 to finish with his front mounted MP90 and hopefully he would let the castings out of the bag so that everyone else can do it aswell for cheaper. Cause I can see that becoming a very popular thing to do with 60*'s if it all works out with him.

considering he whipped 12PSI out of it, it is most definitely an interesting option to pursue.

hopefully, we can go a step further and just use the M90s from the L67s and make the process even cheaper to get into.

[Z26-T]

I recommend installing a 3400 and obd2 before considering a turbo or SC swap.. I wish I had done a 3400 and obd2 before I built my first turbo kit. But if you want to do either a turbo or SC swap, it'll be several grand.

[ericjon262]

It might be possible to modify a TGP turbo setup for reasonably cheap, however, the manifolds would be somewhat restrictive and the stock T25 turbo should at least be upgraded to a T28. Should make good power over stock though

you can open up the TGP manifolds to the 3x00 ports, but it leaves almost no sealing face area near the corners of the ports. it's not something I would recommend, what I would consider is blocking off the output of the rear facing manifold, and fabbing up a new Y pipe to the turbo.

[caffeine]

It might be possible to modify a TGP turbo setup for reasonably cheap, however, the manifolds would be somewhat restrictive and the stock T25 turbo should at least be upgraded to a T28. Should make good power over stock though

[young gun]

I'm not aware of one, but I think Mars had a supercharger kit on his cavalier. might shoot him a PM.

Centrifugal S/C. Replaced the A/C. Ran it with a intercooler. It has its own oiling system that needs a small oil cooler (Rotrex brand). Only problem is you need to rev high to get power out of it so you really need to build for higher revs. He was shifting at 7k RPM's (manual trans). He also had minor port work with a cam and proper lifter springs to go that high in rpms. Headers with a 3in downpipe with a cut out...

Probably better off to wait for AleroB888 to finish with his front mounted MP90 and hopefully he would let the castings out of the bag so that everyone else can do it aswell for cheaper. Cause I can see that becoming a very popular thing to do with 60*'s if it all works out with him.