intake manifold, plenum, etc questions for a 3.4l camaro

[not_sonic]

I've been gathering as much info as i can about my camaro's 3.4l engine.

one of the largest bottlenecks it seems to suffer from (from what i've come across) is the poor design of the intake manifold and the rather insufficient plenum and fuel rail.

any suggestions as far as take offs from other 60v6s's or perhaps aftermarket (only thing ive found is the edelbrock one. theres no room under there for a carb.) parts would be greatly appreciated.

i also want to mention how surprised i am to see the 3.4 getting some respect. its the laughing stock of the fbody community

(and for the record, im not looking to get ls1 performance out of my engine. i'm just looking to improve what i have, mostly out of curiosity and the learning experience.)

edit: after some more searching of these forums i've answered the majority of my questions.

i'd like to apologize for making such a lame thread and over simplifying the idea of improving the 3.4's performance.

[geoffinbc]

Your right about the intake. If you want I can sell you one you can have ported out and put that on your motor. This and head porting would go a long way. Don't forget about the exhaust. People always say headers are the best bang for the buck they have ever spent. So you should think about that.

I really dont see how the fuel rail is a problem. Then injectors can easily supply much more fuel than the engine is using now.

[93camaro_zzz]

To be honest i didnt notiuce much difference out of my headers. Thats not one of the biggest bottle necks, the biggest for the L32 is the heads, and the intake plenum size. Also a couple of other things, like injector size, TB size, and compression ratio.

[sharkey]

the heads are a big downfall, aswell as the intake. i dumped a stupid amopunt of money into my ironhead projects, and came up very disapointed (why do i always have to try to prove everyone wrong). i did spend a lot of time in porting the heads and intake, but still fell very short of my overall goal. i think it will be very good for boost, however n/a hasnt worked so well. i may end up building a custom middle/upper plenum, and this should help a bunch, but depends on what route i go from here on.

the 3.4l is actualy a decent motor. its great for swapping into other 660 vehicles and even into kit cars and its popular with british cars. laughing stock of f-bodies, sure i can see that. your talking about a 160hp motor that gm threw in cars that had the ls1 in them.

probly the best thing you could do is a full motor build. use 3400 pistons and a 3400 top end with a decent cam and you would get around 200hp out of it. even go farther and do some porting in the heads and intakes, some stainless valves, forged pistons, and throw some nitrous at it.

[94Camaro]

aluminum head swap ftw.