What about a Supercharger drive system?

[SappySE107]

you cant use a pushrod block for the DOHC. The only proof I have of GM's 285 hp engine is their official cam specs from 1990 that are much better for top end than our real stock spec cams. If you want to do a custom intake to help promote top end and also drive the car on the street, I would try to make a 2 stage setup. As for the chip, brian knows a fuckload more than I do about the chip code. He gave me a link to the 94/95 MAF chip decoded and it looks like there is now a viable boost solution using MAF. If he gets it setup so I can tune it (cause thats all im good for is actually tuning, not decoding), then boost would be no problem what so ever

A box on a lower intake is not a plenum...its a box on a lower intake. Thats my stance. His car is no low end, worse than ours stock and he has a lighter car to contend with. Try that on a w body and you will hang yourself trying to drive it on the street.

The 4T60-E is gonna be the death of any DOHC buildup.

[93LuminaZ34va]

Look at the pace car post in this section. I like the intake design on that, if it were tuned for our motors.... I think it might work.... Kinda like a SuperRam on a V8 SBC Those headers look nice too... what kind of CAD program do ya'll use? I'm familiar with G-Max, but thats for video 3D modeling for games and CG sequences in videos; Can't really design much there it this way.....

[Anonymous]

AutoCAD LT 2004.

I love it!

Our 40 or so CAD computers at school all have it, and that is what I use. I am using it to design my headers, but that isn't working out so well just yet.

[93LuminaZ34va]

Cool...... I need to find out where to get it..... I've got a fairly new computer (state of the art in March, now the base model lol)..... I think it would work ok on there. Any idea where to get it?

[Anonymous]

It would work--however the prgram itself is almost $200. You could probably find it at like Best Buy, but I am not sure.

[3.4Z24]

http://www.60degreev6.com/index.php?p=pages&pid=146

i had a tpi on an '85 camaro and i think the 3.4 runner length beats it out by quite a ways. i'm with ben on the box thing. runner length and diameter are pretty critical on both ends of the engine; intake or exhaust.

gm powertrain's hydromatic division didn't have an automatic tranny that would handle the power available from the 3.4 at the time. thus, it got detuned before it was released in vehicles with warranties. anyone who's played hard or has a higher mileage auto knows just how weak they are. it just bums me that they didn't develop more capacity in their trannys over the years knowing the 3.4's potential.

anyways, back to the post... i saw a centrifugal supercharger on a honda that was driven on the non accessory side of the engine via go cart axle pieces. they're not that expensive and you can use any quality of bearing you want. by go cart i mean just short of indy lights stuff, not the briggs powered solid axle things that almost do 30mph

[3.4Z24]

i apologize for the long post, but due to an error on my part i couldn't post for a while. thanks ben!

[Norm '88 GT]

The company is Ripp Modifications:

http://www.rippmods.com/

Pretty impressive numbers from a 4v 3.0L.

[93LuminaZ34va]

Yeah, my friend was the one that brought it up and showed me the site since he has a Stratus R/T. Their 3.0's are rated 200 hp stock, getting about 250-270 hp out of the autos, and a little more out of the manuals. Thats when I got to thinking about building my own for my 3.4 DOHC...... and looks like the Getrag 284 will have to come with it. Oh well.... atleast I got my next project after my 383 stroker for the Camaro

[pendan]

HP sells cars
Torque wins races

[Anonymous]

HP sells cars
Torque wins races

That is very untrue buddy. Torque wins races to 30, but beyond 30mph, it's all hp. Look at the 3.4, a semi-torquey motor(for a DOHC V6), yet obviously built for high end HP. Yet I can beat a SC GTP, which is all about torque. It just takes me till 35 to make up his speed and start pulling. And on a good launch, I can and have stayed right beside a GTP.

[Lyle's GTP]

How about using a eaton style supercharger off a series 2 3800. The air box from the fiero thing gave that guy only top end, for drag only. But if you bring the pressure up in your intake quickly like with an eaton style supercharger, the length of your runners doesn't matter. The hood would be an issue yes but can be over come. The worst part would be fabing an upper intake to bolt onto the supercharger. Various intake systems may give more power or top end. But think of what a real supercharger will do!

[Lyle's GTP]

I also agree with Aaron. If torque was all it took to win a race was torque. We would all be dropping in cummins diesels. 200hp and 500 foot pounds sounds pretty good don't you think?

[SappySE107]

torque is calculated from hp, so what does it matter. Look at a motor that makes more low end power...its torque numbers are higher at the lower RPM. Look at the 3.4 DOHC, that makes more power at higher RPM, its peak torque is also higher in the RPM range, and more of it than the other engine.

[grandprix34]

http://www.capa.com.au/prices_eaton.htm

they have the 2 Piece 90 Drive Ass $ 412.00


I took a look at alot of Grand AM owner's supercharged setups and the charger on the intake side of the engine is the best and more practical solution.

-The intake plumbing I can have made for a pretty penny ...well, whatever works right? Worst comes to worse, I'll use that Autozone flexible aluminum ventilation hoses!!
-For an intercooler, I saw this SAAB intercooler

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33742&item=2454939180

and like the setup of the endtanks facing the driver side.
- I really admire and praise Brian89gp's intake routing and placement of the intercooler on his turbo DOHC...so I plan to mimic that setup. Imitation is the best form of flattery no?

Several questions came to mind when thinking of the supercharger...

- Around what RPM range does the M90 begin boosting?

- Wondering about wastegates and blowoff valve, though I strongly believe I am wrong because the supercharger stops making boost past its set RPM so I assume since its crank driven there is no need for one..right?

Other issues...fuel, ECM management

On fuel, a high pressure fuel pump (walbro) and larger injectors either from ACCEL or OEM L67 injectors will come into the equation.
- Would stock injectors be good enough and if not, would the fuel rail need any modifications?

On the ECM, well that I am wary about. I was told that their is a turbo DOHC chip already made that I could possibly use so that the 2 bar MAP sensor would recognize the boost and thus adequatly provide the fuel/spark need...again, is this true or is it a myth?