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slp runner gains over stock?

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Old Sep 11, 2004 | 07:43 PM
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
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slp runner gains over stock?

what kind of gains can i expect with the slp runners over stock runners? thanks
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Old Sep 11, 2004 | 10:25 PM
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Lower numbers unless you port match everything correctly and clean up any left over casting material...

Once you do all that I'd say about 5HP to be realistic with just those alone.

The idea is that you will breathe better with other mods and you will gain more with the other mods than you would alone because you have those runners...
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Old Sep 11, 2004 | 10:46 PM
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Car: '85 IROC
Engine: LB9
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A hi flow baseplate should accompany those runners. There are some nice dyno charts in TPISs books that show what different mods like that do for you, one step at a time, but just like all the TPIS stuff the books are pricey.
With big runners and a baseplate, the right cam, and heads a TPI 350 can get close to 400hp (they say)

Last edited by Streetiron85; Sep 11, 2004 at 10:51 PM.
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Old Sep 12, 2004 | 01:49 AM
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
when you say baseplate and runners, is that with the stock upper tpi unit ?
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Old Sep 12, 2004 | 01:54 AM
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You keep the plenum. That's what that center part is called.
AFAIK all those A/M base/runner setups use the original plenum, you should port it tho.
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Old Sep 12, 2004 | 01:56 AM
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From: Carson, CA
Car: '88 GTA, 90 Formula
Engine: 5.7 TPI, fed growth hormones
Transmission: 700r4 4u2?
Axle/Gears: 9bolt
By your sig, I would suggest you change to about 3:55 rear gears from your 2.77's. You will see a much greater improvement in performance with that than a manifold and runners on a basically stock engine.

Just my 2cents
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Old Sep 12, 2004 | 01:57 AM
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
would it be better to go SLP runners/baseplate or get a superram?

and as for the gears, sure, tell me where to get 3.45's for my ausie 9bolt rearend, and id be more then happy to purchase it.
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Old Sep 12, 2004 | 02:02 AM
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If you want to stay legal in Ca I think you'll have to get the SLP. I'm not 100% sure tho.
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Old Sep 12, 2004 | 02:03 AM
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
no the super ram is legal here.
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Old Sep 12, 2004 | 02:08 AM
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From: Pacific Northwest
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They're legal??
Maybe I'll get one.
You still need a hi flow baseplate
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Old Sep 12, 2004 | 02:11 AM
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
http://www.stealthram.com/intakecompare.html
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Old Sep 12, 2004 | 02:11 AM
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Hey travis, have you had any work done at hinds machine shop?I'm going to have him build my engine.I had him do some heads awhile back but not the full motor.I would go with the super ram,that's what I'm going with.You'll get higher rpms out of it.I want to stay cali legal too.They're talking about going byannual for smog here.That would take a long time to pass though.
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Old Sep 12, 2004 | 02:14 AM
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
http://www.jegs.com/cgi-bin/ncommerc...19&prmenbr=361

they have baseplates too
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Old Sep 12, 2004 | 11:35 AM
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Engine: Al LT1 headed LG4 305
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http://www.stealthram.com/intakecompare.html
There is something wrong with those dyno charts listed. The hp and torque curves cross at 3500 rpm.

I would say that they are a complete fabrication.

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Old Sep 12, 2004 | 12:40 PM
  #15  
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From: Wisconsin
Car: IROC-Z
Engine: L98 350/ 5.7L
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Originally posted by Streetiron85
A hi flow baseplate should accompany those runners. There are some nice dyno charts in TPISs books that show what different mods like that do for you, one step at a time, but just like all the TPIS stuff the books are pricey.
With big runners and a baseplate, the right cam, and heads a TPI 350 can get close to 400hp (they say)
i dont think you would get 400 hp tpi just dont flow mabye 350 max unless u go all out with fi or nitris
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Old Sep 12, 2004 | 01:21 PM
  #16  
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From: Pacific Northwest
Car: '85 IROC
Engine: LB9
Transmission: 700 R4
Originally posted by ME Leigh
There is something wrong with those dyno charts listed. The hp and torque curves cross at 3500 rpm.

I would say that they are a complete fabrication.

The reason the TQ and HP curves cross where they do is cause the TQ scale (on the right of the graph) and the HP scale (on the left of the graph) are gradiently dis-similar (I just made that term up)
Take another look, you'll see what I mean.

Last edited by Streetiron85; Sep 13, 2004 at 07:57 AM.
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Old Sep 12, 2004 | 09:22 PM
  #17  
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
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