keeslinger31

Im putting a weiand 177 supercharger that is this
http://store.summitracing.com/partde...5&autoview=sku
And 113 aluminum corvette heads
on my stock l05 I put in my car it has a vortec block and swirlport heads
1. Will this work?
2. What will the compression ratio be?
3. What hood will I need 3" 4" 5"?
4. Are there any better heads that arent going to break the bank?
5. How should I go about tuning?
6. Long or Short nose supercharger?
7. Where do I find a adaptor for carb to tbi?
8. Does the supercharger intake have egr?
9. IF NOT what has to be done?
10. What cam will be good for this setup?
11. How long will the supercharger last if not driven hard?
12. Will i need to use premium gas?
13. Last question is it worth it?

I know I will need a tpi fuel pump 113pph
I know I will need 454 injectors will these fit in a stock 350 tbi unit?
all in all I DON'T know what im doing so please help
I would put it in supercharger thread or tbi but they dont get much traffic

keeslinger31

Doesnt anyone answer threads around here

SpitotRs305

sure we do however no one can explain all you would need to know to complete your little project successfully as you admittedly know far to little in the first place so the best course of action for one of us is to tell you to research and answer a few of those questions for your self... it will help you learn about the car then you can look at maybe building yourself an engine... then think about forced induction as what you are looking to do isn't really a bolt on for some civic or one of those 1000HP stickers kids like to "install"

keeslinger31

alright i will answer what i have found out
1. yes
2. between 9.0.0 to 9.7.0
3. 5"
4. no
5. Myself as i probobly cannot trust any of the jackasses around my area
6. darn sure long but you never know
7. summit jegs anywhere like that
8. no i have to plum it externally or on the manifold or something
9. look at 8
10. a blower cam from comp cams around 200 to 280 duration
11. noone will ever know
12. i will try to tune so i dont have to
13. yes its worth it
there now the reason i didnt answer them was to not sway your decision on the answer so i could get a serious opinion and be on with my LIFE

SpitotRs305

wasn't trying to be an *** but those are very basic / vague questions which get answered alot... very easy to find the answers...

your answer to #5 should bother you... you are planing on bolting up a fairly expensive piece of equipment here on to an atleast running engine(no details on it...) do you have much experience tuning TBI? cause that little blower and the wrong tune... you will be picking up the pieces for MILES....
this board can help you thought...

shotgunning questions like that is a pain work with one thing at a time...

camshaftxe

I stopped posting here a while back because people = **** but, basicaly what you want to know is what are the legistics of a supercharged lo5, the reason why not many people have responded is because its kind of a hard one to answer, but heres my take on it. Tbi is a bit harder to boost because most factory equip tbi ecm's dont read the boost, and in return dont know how to react like air/fuel ratio, timing, and what not. It can be done, however you would need an ecm that reads boost like the one from a typhoon or cyclone, possably a gnx. Also some kind of vacum regulated fmu. The most adequate fuel pump would be a walbro 255, injectors would need to be under more pressure then factory, and would need to be bigger, 454 would probably work. 113 heads are not even close to the best choice for a boosted combo your compression would most likely be very high not sure but it'd be more then 10:1 I garantee you that. You probably wouldnt want alum. heads for a boosted application, maybe some ported vortecs, or just somthing iron with a large port. The engine would need forged pistons, rods and just basically all forged internals to handle the boost. Really its not that hard to do what your wanting, but you'd have to be a very very experienced tuner to pull it off. Imho, no this is not a cost effective way to make power. If you want boost go speed density or maf, not tbi. I personally think a blow threw carb set up is easiest but thats just me. An experienced engine biulder on a budget would most likely instal a decent cam, full exhaust, intake, and tune the tbi. If it were me and I had that kind of $ Id get a carb, headers, walbro255, vortec heads, and procede to mod the drive line.

Air_Adam

My 2 cents.

camshaftxe

On that compression Adam, I thought the old l98 vettes made right around 9:8

Air_Adam

The L98 Corvettes were around between 9.8:1 and 10:1, as they used a flat top piston, but it was still pretty deep in the bore and had a relatively thick gasket (for OEM)... either way, its far too high for a blown engine. His target compression ratio should be between 8.0 and 8.5, so a set of large 72-76cc chamber heads, like #993 for example, would be a much better choice.