CI for a boosted motor
Thread Starter
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
CI for a boosted motor I have been told to do a 4" stroke for a supercharged motor for my 99Transam . Who here has used a small CI motor and what was your results and combo ? I have a Novi 2200 supercharger just don't know what CI size to go with . Do I go with 408 and do 12-14 psi or go smaller CI and max the blower out ? My car is a 6speed if that helps
What power goal are you trying to hit? That would help a lot more than psi. For a 2200 I would go with something between a 376-416 with compression in the 9.8-10.2 range.
Thread Starter
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
I have a friend that is trying to get me to do a 2jz, or a rb26 in my transam . I wanted to be different, so I went with Novi 2200 instead of a procharger . I just lmao �� when he talk this **** ��, but they do make some damn good power .
I did 975ish on a 346 with an F1R worked great. If you want to stay on 93 octane shoot a little lower on the CR like 9-9.5 it will leave you some saftey and not leave hardly anything on the table. GL! And budget determinds your motor really any of them will work the bigger the CI the more TQ and the HP will be simular so the bigger CI will feel faster, but because of traction it might be slower on the street anyways, so just depends on your car and budget GL!
Trending Topics
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Boost is basically a replacement for displacement. There are 3 liter engines making 3000 hp. Don't over think it. Stock displacement 5.3s have made 1400 with an F1X procharger.
If you want to replace the crank, it wouldn't hurt to get a stroker crank for the same price. You can start with a 6.0 block a buy a balance rotating assembly and be done with it.
If you want to replace the crank, it wouldn't hurt to get a stroker crank for the same price. You can start with a 6.0 block a buy a balance rotating assembly and be done with it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
with a 6 speed and that blower, your goal wont be a problem whatever size motor you choose.
Im building a stock bottom end 6.0 with a ysi(same blower as novi 2200) and think it will make than much power through a th400.
Im building a stock bottom end 6.0 with a ysi(same blower as novi 2200) and think it will make than much power through a th400.
TECH Apprentice
Joined: Dec 2004
Posts: 358
Likes: 1
blower flow will compensate for lack of cubes and as long as the engine can tolerate all the cylinder pressure, make all you can
the small bore blocks see to be more detonation resistant
but for 800 or less, I would try out a 370-383 as suggested
I'm going to try an LS6 stock 3.86 bore with a 4.0 stroke (got a better deal on the stroker) with studds and forged lunati crank, rods, and pistons in a 4.8 iron block
this is boring the block more than I would like, but I got a killer deal on this rotating assembly and want to go for it
good luck on your build, don't skimp on the fuel system or injectors
the small bore blocks see to be more detonation resistant
but for 800 or less, I would try out a 370-383 as suggested
I'm going to try an LS6 stock 3.86 bore with a 4.0 stroke (got a better deal on the stroker) with studds and forged lunati crank, rods, and pistons in a 4.8 iron block
this is boring the block more than I would like, but I got a killer deal on this rotating assembly and want to go for it
good luck on your build, don't skimp on the fuel system or injectors
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
I have been told to do a 4" stroke for a supercharged motor for my 99Transam . Who here has used a small CI motor and what was your results and combo ? I have a Novi 2200 supercharger just don't know what CI size to go with . Do I go with 408 and do 12-14 psi or go smaller CI and max the blower out ? My car is a 6speed if that helps
If you want more torque, more low rpm grunt, then go with the larger motor.
But you wont need extra capacity to make the headline numbers.
TECH Regular
Joined: Oct 2014
Posts: 415
Likes: 2
Agree with what is already posted. Honestly you could hit your power goals even with something as small as the 4.8 or the 5.3. If it were me, I'd aim for the 376 though and somewhere in the 9.0-9.5 CR. It would allow you to easily hit your power goals safely, but it also gives you room to grow if you wanted to down the road.
Thread Starter
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
Yea, just don't want to have to depend on it all the time . How long would a 2.5 gallon last . Any bigger would be a bitch to find a place for . Thinking I may go with a 408 or 376 on 16-18 psi .
Would last a long time unless your driving around everywhere in boost cause that's the only time it sprays lol. Mine is 1.7 gallons and I'm running two big nozzles and don't have to fill it often.
Don't worry about psi. Shoot for a power a goal and it will make what it makes psi wise. If it makes your goal on 14psi would you be disappointed? No of course not.
Don't worry about psi. Shoot for a power a goal and it will make what it makes psi wise. If it makes your goal on 14psi would you be disappointed? No of course not.
Last edited by Detoxx03; Dec 14, 2014 at 05:31 PM.
Thread Starter
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
Lol �� good point . I would be happy with 650-750 at the wheel . Anything after that is just wasteful. Over 750 hp would just haze damn tires on hard accreditation. Traction would be a problem . I might use a wastgate and limit boost for daily driving .
Edited my last post to include how big my tank is.
Thats eash for that headunit to handle. Could always just use a restrictor plate instead of having to but a waste gate and controller.
Thats eash for that headunit to handle. Could always just use a restrictor plate instead of having to but a waste gate and controller.