625rwhp with great drivability possible?
Thread Starter
TECH Enthusiast
iTrader: (12)
Joined: Nov 2008
Posts: 590
Likes: 0
From: Long Island, NY
625rwhp with great drivability possible? I have only started reading through the FI threads this week and was wondering if it is possible to have 625rwhp, great drivability, and over 20mpg with a mild cam, 317s and TC76 .81. I saw some 750rwhp builds but would rather have less lag and better drivability than crazy numbers. Using the search it seems after fuel, and all turbo parts it should cost about $5000-5500 for everything, does that seem correct? (Would either do ebay hot side kit or custom pipes with truck manifolds myself)
Thanks!
Thanks!
i doubt the stock bottom end would hold up at 650 rwhp. AS a general rule every 1psi is usally worth around 30-40 hp on an fbody to depending on how big you go. i would guess you would need around 8 psi though. it seems that 500 rwhp is about the highest you could go without any reliability issues though on an otherwise stock engine. Also i think it will cost you a little more than 5000$ maybe say 6000 or 7000 unless you can do a lot of the work yourself or find a good deal on a used kit. you have to remember if your a4 your gonna need a new trans and if your m6 like me you need a serious clutch. on another note though boosted cars are awesome. thats my next project
It is very easy to make 625 rwhp and drive like stock. With the auto it would be leaning on the stock motor quite a bit. Put a set of rods in pistons in that motor and you will have a reliable car that will meet your goals.
If its front mounted I would do the .96 a/r on the turbo
If its front mounted I would do the .96 a/r on the turbo
Trending Topics
Thread Starter
TECH Enthusiast
iTrader: (12)
Joined: Nov 2008
Posts: 590
Likes: 0
From: Long Island, NY
i doubt the stock bottom end would hold up at 650 rwhp. AS a general rule every 1psi is usally worth around 30-40 hp on an fbody to depending on how big you go. i would guess you would need around 8 psi though. it seems that 500 rwhp is about the highest you could go without any reliability issues though on an otherwise stock engine. Also i think it will cost you a little more than 5000$ maybe say 6000 or 7000 unless you can do a lot of the work yourself or find a good deal on a used kit. you have to remember if your a4 your gonna need a new trans and if your m6 like me you need a serious clutch. on another note though boosted cars are awesome. thats my next project
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 Thread Starter
TECH Enthusiast
iTrader: (12)
Joined: Nov 2008
Posts: 590
Likes: 0
From: Long Island, NY
It is very easy to make 625 rwhp and drive like stock. With the auto it would be leaning on the stock motor quite a bit. Put a set of rods in pistons in that motor and you will have a reliable car that will meet your goals.
If its front mounted I would do the .96 a/r on the turbo
If its front mounted I would do the .96 a/r on the turbo
No about the lag
Drivability is all gonna be based around the cam, a ls6 cam would drive like stock and work well. The only different's between 650rwhp and 750rwhp with a tc76 is a few more psi.
Drivability is all gonna be based around the cam, a ls6 cam would drive like stock and work well. The only different's between 650rwhp and 750rwhp with a tc76 is a few more psi.
agreed, my tc76 .96ar has no lag. and coming from a heads/cam setup to this setup with an ls6 cam it feels like a stock car until you get into boost. 650-700 hp is just a few more pounds (and a new shortblock) away
I have a thunder racing cam in mine, 227/224, .570"/.563" 114 lsa, valve springs and ls6 intake...and I think my car is very streetable...with the turbo and exhaust I have on the car you can't really tell it has a cam in it. Also, the auto really made it nice to drive.
Absolutely. On a stock bottom end it's a little trickier, esp with an auto. I wouldn't worry about rwhp though - my setup got 23mpg on a day long cruise last fall when it had the 6 speed in it and made about 10rwhp less than you're wanting. Mines a built bottom end, lingenfelter gt7 cam, stock heads, stock ls1 intake and 15psi from a lil dinker T70 turbo. Never got a good pass out of it at the track, but pulled a 128mph car about a car length on the highway in this full weight car. With the 4l80 I'm guessing about 75-100 less wheel hp but a much more usable and fun powerband on the street and track (autos = always in boost under WOT)
