Forced Induction Superchargers | Turbochargers | Intercoolers

high rpm turbo???

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Old 02-18-2008, 10:57 PM
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Default high rpm turbo???

is there a turbo anyone knows of i can shift at 7500rpm and not have it max before then???
Old 02-19-2008, 07:17 AM
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with what size engine?
Old 02-22-2008, 02:49 AM
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5.0 destroke ls1 bore with stage 3 heads ported ls2 intake with ported polished 90mm ssr throttle body
Old 02-22-2008, 03:45 AM
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Certainly, but I suggest that you study turbos a bit more. They come in several flavors:
1) Spin up early, but peak out early (too much boost on top)
2) Spin up later, but peak out later (what you are seeking)
3) Twin systems, which have both
4) Type 1, but using a wastegate to limit top end boost.
Type 4 seems to be a good compromise between power and cost.
Best of luck.

Last edited by koolaid_kid; 02-22-2008 at 08:48 AM.
Old 02-22-2008, 04:45 AM
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yea i have tried but no joke they confuse the hell out of me

if i use a wastegate can i turn the boost down when i dont need it?
Old 02-22-2008, 05:12 AM
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Go spend $24 and buy Corky Bells Maximum Boost. It breaks it down to understandable terms and was and still is the heat when it comes to turbo & F/I info.
http://www.amazon.com/Maximum-Boost-...3678707&sr=8-1
Old 02-22-2008, 05:16 AM
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blah i really think i want nitrous cause i dont have to read a book about it lol


yea im just trying to get an ideal not worth me gettin a book yet


and the motor is around a 10:1 compression so its not worth trying to boost
i thought about e85 but then if i travel i screwed when i cant find it
Old 02-22-2008, 06:50 AM
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Originally Posted by jkwalkercchs
and the motor is around a 10:1 compression so its not worth trying to boost
i thought about e85 but then if i travel i screwed when i cant find it
you can boost a 10:1 comp. raito engine! i have seen 11.5:1 motors with 15psi of boost! you just have to know what you are doing and make sure the thing is mapped right.

saying of the 21st cent. "its all in the mapping!!!!!!" and that is soo true!

Chris.
Old 02-22-2008, 08:52 AM
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Originally Posted by jkwalkercchs
yea i have tried but no joke they confuse the hell out of me
if i use a wastegate can i turn the boost down when i dont need it?
The confusion is understood.
If you want to turn the boost down, I suggest a boost controller. It will allow you to have at least two settings, call them low and high. Run high when you want to scare the britches off yourself, and low every where else.
Old 02-22-2008, 08:55 AM
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Originally Posted by jkwalkercchs
and the motor is around a 10:1 compression so its not worth trying to boost
i thought about e85 but then if i travel i screwed when i cant find it
I boost my 10.25 stock LT1 at 7 psi with no issues. JMH experience.
And I would not go near E85 with my DD, much less my fbody.
Old 02-22-2008, 01:43 PM
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Originally Posted by koolaid_kid
I boost my 10.25 stock LT1 at 7 psi with no issues. JMH experience.
And I would not go near E85 with my DD, much less my fbody.
lol is it that bad????



so 7psi intercooled? would be safe with 93 octane
would it be worth it for 7psi what kind of gains did u show?
Old 02-22-2008, 03:42 PM
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7 psi non-intercooled, but it would be better intercooled.
It is safe, but IATs were too high (60 degrees above ambient).
gains were about 65% above naturally aspirated.
Depends on what you want.
Old 02-22-2008, 04:46 PM
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i want a motor with really nice top end and shift at 7500 7600
but can be driven normal if need be
Old 02-23-2008, 04:28 AM
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Originally Posted by jkwalkercchs
i want a motor with really nice top end and shift at 7500 7600
but can be driven normal if need be
Why so much RPM?
Old 02-23-2008, 05:14 AM
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cause i got a short stroke rottating assembly and im crazy lol
Old 02-23-2008, 06:09 AM
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Originally Posted by chuntington101
you can boost a 10:1 comp. raito engine! i have seen 11.5:1 motors with 15psi of boost! you just have to know what you are doing and make sure the thing is mapped right.

saying of the 21st cent. "its all in the mapping!!!!!!" and that is soo true!

Chris.
Or run wastegate boost around town, and pull off the vaccum line(roughly doubles the boost) when you want to go faster.
Old 02-23-2008, 01:00 PM
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here we go again....
Old 02-24-2008, 06:46 AM
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Originally Posted by IMD
here we go again....
would u please go beet your meat with a hand full of tacs
Old 02-25-2008, 01:30 AM
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anybody else like to chime in
Old 02-25-2008, 01:32 AM
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o and i saw today the gas station down the road sell 112 octane cam-2 race gas

its leaded though does that matter??



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