you may have a problem if you run the stock torque converter with that cam.

a comp 268 is a good cam for a street app.. it is not a late horsepower cam. it peaks before the torque curve crosses it. this is a decent low end torque cam and probably what most of us would have recommended for a good middle of the road cam. it does what a good balanced cam should, gives fair torque on the bottom, and fair horspower at the top. it is not going to be a slouch in the bottom end but it isnt going to be a 12 sec car either. it will be fun to drive.. alot more fun if you have 3.55 gears..

also you should get 981-16 valve springs to go with it.

although I would consider a roller cam/lifters and roller rockers

http://www.vetteprojects.com/cthulhu/misc/louis.pdf

here is the software simulated dyno for the engine. the figures should be withing + or - 8% of the actual dyno result.

if you stay with the 3.08 rear end.. your launch gearing will be roughly 7.8.. youll want this higher to have any rice gobbling hopes.

your top with this rear will be about 140 mph

changing to 3.55 will take your launch to 8.9 which is better.. but still no rice gobbling and your top speed to 125 mph

a properly built 200r4 or 700r4 would solve both of these problems.

|UPDATED|11/3/2004 6:27:58 PM (AZT)|/UPDATED|

Looks like a fun little motor for your vette louis. You did this on a good budget too. You will have fun with it. whine to your dad to buy you the gears you need though. Make up a good story like "The cam needs this gear to be a high ratio so that all this power will not go to waste!"

Ha-ha... Looks like I got schooled. Yes, I know I am a nub (newbie) but I can't help it. I was not trying to offend either, all I meant by saying "no one knew this" was because it was like 1 day after my post, and no one responded so I bumped it up. However I did learn a lot in this thread post. And frankly when I told my dad about the gear ratio he looked at me weird. But why would I go with a higher gear ration and lower my speed from 140MPH to 125MPH? This is a nice dyno you have to admit. I am not looking to go out and race people. However nor do I plan to speed, but just to know the power is there just incase I want to have fun (on a closed road) is nice. My sister just crashed her car... so I doubt my dad wants to see a dyno, or even think of making my Vette faster than what it already is. The last I know my mom said that she was ok. But I have not heard from anyone since. Dude.... at this rate since she screwed up again... I'll be 30 before I get my license, or 90 by the time my car is done. I always get the short end of the stick, and it usually ends up in my backside (ha-ha). Anyway some more research and waiting will do me some good. And just to let you guys know I am paying for everything. I don't want to be one of those kids where their daddy has to pay for their car... its sad, and weak.....

|UPDATED|11/3/2004 8:58:21 PM (AZT)|/UPDATED|

But it ain't an IROC.

You also need a chain link steering wheel.

new77guy said: frankly when I told my dad about the gear ratio he looked at me weird. But why would I go with a higher gear ration and lower my speed from 140MPH to 125MPH?

because as I said there is a HUGE difference between FAST and QUICK

fast is your top end..
quick is how you accelerate.

a 72 lincoln continental with a 2.x gear ratio will go 160+mph....

however it takes FOREVER to get there...

this is an example of a car that is FAST but NOT QUICK

conversely... you could put a 4.11 rear end in it and it would have great 0-60 time but the engine would blow up at 110 mph

this is an example of QUICK but not FAST

I mean I'm cool with my car now (thnx for the dyno!). I mean like I said I am not about to race anyone or speed, but have a little fun when the appropriate time comes. I'm not a 12 year old kid....

From what you say you want, it looks like the combo on the Desktop dyno is just what the doctor ordered. It sounds like a really good combination. But yes, the gears would help.

It now sound like you have a good plan. Well everything but that stick up the backside OWW!

Perhaps you could study the past election for propaganda methods and presentation, and give it a shot on your Dad.

Seriously, Your combination will probably make you very happy. And you can always do the gears a bit later after the engine is finished.

Nah... I think the gears for my age are ok. I'm not that good of a driver yet to go with some high-end gears. However I just got the engine back. I'll post some pics of it later. But before I buy the oil pan... I have a question. I want the chrome one... I think it would look nice for shows. But however its only $59.99, and a non-chrome one is like $134.99. How is this possible isn't chrome usually more? And now neither of them is high performance...

http://www.ecklers.com/product.asp?pf%5Fid=22932&dept%5Fid=153&mscssid=GEUM3R306X029L8B0TNJ72GW3C4375TE
$134.99

http://www.ecklers.com/product.asp?pf%5Fid=A5822&dept%5Fid=153&mscssid=GEUM3R306X029L8B0TNJ72GW3C4375TE
$59.99

Also we went to my sister's car first, and boy was it screwed up... I'll post some pics of it later on as well.


Also can someone explain to em drivetrain loss, my friend seems to think my car will lack power... However I am trying to explain that my engine is no longer stock, and with a stage one shift kit it will bring it to a lower loss. The estimate is liek 20% with an automatic tranny, and for a manual it is somewhere between 13%-22%. Also does anyone know where I can get the gas tank sensor for my car, without having to buy the entire gas tank sending unit? It's liek $234.... and frankly I need that for other things on the car...

Thanks,
-Louis

|UPDATED|11/4/2004 9:46:32 PM (AZT)|/UPDATED|

Your click links are not working, but I can see that you are ordering them from ecklers. Now ecklers has alot of great parts for vettes and are competative in some areas but engine performance parts are not who I personally would go to. I like summit for the bolt on stuff like your oil pan. http://store.summitracing.com/ look over there selection and see what you like. You can stick to a stock replacement pan and do fine as long as you use a stock oil pump pickup. If you want the next level of engine protection from oil starvation go with a 6 or 7 quart pan that is not too deep. look for a pan depth no more than 8.5" deep. Ground clearance is at a premium for our cars. A pan is no good when its dented to hell or worse punctured by the ground scrapeing it. another nice feature to look for is trap doors inside to hold oil in place for the pick up. this keeps oil from centrefuging to the side and not around the oil pumps pickup screen. And lastly a windage tray to scrape excess oil off the spinning crank. this is for retuning oil to the bottom of the pan quicker and lowering the restistance on the crank from trying to scoop up too much oil and costing a little bit of HP. But again its a money issue. How nice of a pan do you want? how much do you got to spend on it. On the pretty chrome idea.. I can barely see my oil pan in my engine comparment unless you got underneath it. I dont think it will matter if you got a chrome one but its your choice. Moroso and Miloden make nice pans but the generic summit ones work great too. Pay attention to the size and features though.

On the power loss issue yes you are correct that a automatic will lower the rear wheel HP 20% of your crank HP. The shift kit will not change this fact though. The shift kit will cause less slippage of between shifts and make them more firm and dramatic but once your gears have shifted, your trans will still take 20% hp from your final output because it is still spinning the torque converter and hydrallic pump to hold your gear in place. I dont know what your freind's opinion is on "Enough Horsepower" but I think 320 hp and nearly 400 ft pounds will move your 3400 pound, car plenty fast.