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Author
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Topic: How Much Boost To Get 300+
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MikeD.
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Member # 8060
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posted
 
 
How much boost would it take to get a 93 with stock heads, cobra intake, stock cam w/ 1.7's, and bolt on's, to break the 300+ rwhp mark? I said 12lbs, but I want to get some of your guy's input. Thanks fellers..
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1999 FRC Vette
12.77 @ 110
Posts: 2854 | From: Vacaville Ca, 707 | Registered: Nov 2007
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MikeD.
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Member # 8060
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posted
Almost forgot the most important part.. POLISHED cobra intake AND head unit.. haha
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1999 FRC Vette
12.77 @ 110
Posts: 2854 | From: Vacaville Ca, 707 | Registered: Nov 2007
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turbo50
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Member # 6700
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posted
6-8 lbs and a good tune on a healthy motor
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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MikeD.
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Member # 8060
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posted
Yeah, this kids car runs tits, 148k on the clock. As far as I know hasn't been abused. I told him, to be careful on a 93 with the hypers though.
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1999 FRC Vette
12.77 @ 110
Posts: 2854 | From: Vacaville Ca, 707 | Registered: Nov 2007
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MikeD.
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Member # 8060
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posted
Sweet. He'll be happy, I'll be pissed though, cause his stock headed car will be faster than my h/c/i car!! But then again I have 5k miles on my engine, and his will probably blow soon. I'll just tell him he can only run 6lbs.. Hehe
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1999 FRC Vette
12.77 @ 110
Posts: 2854 | From: Vacaville Ca, 707 | Registered: Nov 2007
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92stangLX
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Member # 3252
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posted
I would say 8lbs. Make sure you do a compression and leakdown test to check for issues.
Also, use an FMU and BTM unless you plan on getting a tune
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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stangin'
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Member # 514
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posted
i was running 7lbs on a stock motor with a novi 1000 with a tune and it made 315rwhp.
Posts: 2993 | From: Bay Area | Registered: Oct 2001
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SCCA SM
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Member # 9758
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posted
quote:
Originally posted by stangin':
i was running 7lbs on a stock motor with a novi 1000 with a tune and it made 315rwhp.
bingo.. im running 6psi on a kenne bell and making 310rwhp.. i have a 95 cobra so i have the gt40 heads but then again i think the motor has another 10~ hp left in it..
Posts: 58 | From: Bay Area. sleep in 415 area live in the bay area ;) | Registered: Jan 2010
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2BlueGeeTees
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Member # 4702
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posted
Just to clear things up on this post, I'm the owner of the 93. I'm looking to sell it, mike just tell the "fellers" that you're the one inquiring about this set up. ![[Wink]](wink.gif)
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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MikeD.
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Member # 8060
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posted
Yeah your definately not the owner.. Lol.
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1999 FRC Vette
12.77 @ 110
Posts: 2854 | From: Vacaville Ca, 707 | Registered: Nov 2007
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2BlueGeeTees
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Member # 4702
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posted
Come on bro this is Kellan. I posted via Justin's account bro. Now who's the owner
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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turbo50
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Member # 6700
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posted
I was a talking turbo boost.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Camara90
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Member # 134
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posted
Same HP NA should take him, especially on a hot day. Shit I used to smack Supercharged cars with 60+ more rwhp all the time, even from a roll. But who knows what went into those dyno numbers, higher octane gas, cooler day, fans etc.. Not to say Supercharged is bad but NA power feels so good, and always on tap!
[ June 02, 2010, 07:00 PM: Message edited by: Camara90 ]
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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mustangfan450
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Member # 8885
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posted
quote:
Originally posted by turbo50:
I was a talking turbo boost.
so does that mean 2-3 pounds of superchager boost
Posts: 144 | From: sac | Registered: Jan 2009
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turbo50
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Member # 6700
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posted
quote:
Originally posted by mustangfan450:
quote:
Originally posted by turbo50:
I was a talking turbo boost.
so does that mean 2-3 pounds of superchager boost
8lbs of turbo boost is like a 12 lb CRANK driven blower............
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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SteveL
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Member # 1241
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posted
A simple estimate of how much boost is needed.
A 302c.i. motor makes 225Hp normally aspirated and you want 325Hp. How much boost?
325 hp / 225 Hp = 1.44
That motor needs 44% more air flow.
Air pressure is 14.7psi. 14.7 * 0.44 = 6.5psi boost.
As someone mentioned, it takes horsepower to drive a belt driven supercharger so to actually get 325Hp you'll need to target for about 340Hp (about 7.5psi).
Posts: 578 | From: San Jose, CA | Registered: May 2002
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turbo50
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Member # 6700
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posted
quote:
Originally posted by SteveL:
A simple estimate of how much boost is needed.
A 302c.i. motor makes 225Hp normally aspirated and you want 325Hp. How much boost?
325 hp / 225 Hp = 1.44
That motor needs 44% more air flow.
Air pressure is 14.7psi. 14.7 * 0.44 = 6.5psi boost.
As someone mentioned, it takes horsepower to drive a belt driven supercharger so to actually get 325Hp you'll need to target for about 340Hp (about 7.5psi).
And that still wouldnt be at the wheels I still say 8-12psi of turbo boost for stock motor to make over 300hp at the wheels.
I think that TurboGT off of here did it with a bone stock 160K longblock and 18psi he made 420rwhp with the bone stock longblock intake etc.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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89bluenotch
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Member # 7454
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posted
quote:
Originally posted by turbo50:
quote:
Originally posted by SteveL:
A simple estimate of how much boost is needed.
A 302c.i. motor makes 225Hp normally aspirated and you want 325Hp. How much boost?
325 hp / 225 Hp = 1.44
That motor needs 44% more air flow.
Air pressure is 14.7psi. 14.7 * 0.44 = 6.5psi boost.
As someone mentioned, it takes horsepower to drive a belt driven supercharger so to actually get 325Hp you'll need to target for about 340Hp (about 7.5psi).
And that still wouldnt be at the wheels I still say 8-12psi of turbo boost for stock motor to make over 300hp at the wheels.
I think that TurboGT off of here did it with a bone stock 160K longblock and 18psi he made 420rwhp with the bone stock longblock intake etc.
What's the power band like with boost like that running through all the stock components?? I bet the low end and mid range rip!
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-Gunnar
89 coupe
54 f100
R.I.P. SILVERLX
Posts: 1857 | From: HEALDSBURG | Registered: Feb 2007
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turbo50
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Member # 6700
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posted
quote:
Originally posted by 89bluenotch:
quote:
Originally posted by turbo50:
quote:
Originally posted by SteveL:
A simple estimate of how much boost is needed.
A 302c.i. motor makes 225Hp normally aspirated and you want 325Hp. How much boost?
325 hp / 225 Hp = 1.44
That motor needs 44% more air flow.
Air pressure is 14.7psi. 14.7 * 0.44 = 6.5psi boost.
As someone mentioned, it takes horsepower to drive a belt driven supercharger so to actually get 325Hp you'll need to target for about 340Hp (about 7.5psi).
And that still wouldnt be at the wheels I still say 8-12psi of turbo boost for stock motor to make over 300hp at the wheels.
I think that TurboGT off of here did it with a bone stock 160K longblock and 18psi he made 420rwhp with the bone stock longblock intake etc.
What's the power band like with boost like that running through all the stock components?? I bet the low end and mid range rip!
Not sure ask him via pm on here or norcal1320
There is a post about it with a dyno graph on turbomustangs
His screen name is TurboGt
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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LQ9SN95
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Member # 7080
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posted
quote:
Originally posted by Camara90:
Same HP NA should take him, especially on a hot day. Shit I used to smack Supercharged cars with 60+ more rwhp all the time, even from a roll. But who knows what went into those dyno numbers, higher octane gas, cooler day, fans etc.. Not to say Supercharged is bad but NA power feels so good, and always on tap!
ya, i dont know why but for some reason a n/a car, say 400hp, will be faster than a forced induction car with the same hp
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http://www.fastgms-teamfast.com
http://www.facebook.com/aop.fresno?ref=ts&fref=ts
Lq9 swap
102 fast intake
Trick flow heads
T rex cam
Posts: 8031 | From: Fresno, Ca | Registered: Sep 2006
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2BlueGeeTees
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Member # 4702
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posted
I have always wanted a boosted car and may do it wit the new 3 valve but there is just something wildly fun and entertaining about the sound and feel of an n/a car and when somebody at the track walks up after a run and says holy shit I thought you were supercharged. GREAT! But who doesn't love the feeling of hitting boost though.
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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2BlueGeeTees
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Member # 4702
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posted
Oops. Big mikes comment got me off track of lil mikes thread. MikeD why don't you put nitrous to your setup I thought that's what Dan built it for? Don't quote me on that I'm sure turbo50 knows all the details but if this is the case wouldn't a nice little shot and some better tires be a much cheaper way for you to go mid 11s all day and still DD your car
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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turbo50
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Member # 6700
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posted
quote:
Originally posted by LILstock3valve:
Oops. Big mikes comment got me off track of lil mikes thread. MikeD why don't you put nitrous to your setup I thought that's what Dan built it for? Don't quote me on that I'm sure turbo50 knows all the details but if this is the case wouldn't a nice little shot and some better tires be a much cheaper way for you to go mid 11s all day and still DD your car
Absolutely. If it is for gay MikeDs car then just put some nitrous on it for now. It will handle it, easy.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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2BlueGeeTees
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Member # 4702
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posted
Dan you need to talk some sense in to this poor kid. He doesn't know what he wants!
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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