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thoughts on this tpi based combo

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Old Sep 13, 2006 | 09:44 PM
  #1  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
thoughts on this tpi based combo

Roller 355
Vortec high lift modded heads
magnum roller tip 1.52 rockers
This Isky cam
Holley stealth ram
run by a mega squirt system
approx compression 9.5
will be doing headers and exhuast as well

anyone want to desktop dyno this for me and/or swing me a ballpark hp/tq estimate?

its a little smaller than the hotcam on intake and a lil larger on exhuast
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Old Sep 13, 2006 | 10:53 PM
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Car: 1991 Z28 (sold)
keep us updated, i plan to do a TPI based 383. im wondering how it will turn out. it will be TPI untill i can afford better heads and an LT1 intake conversion

good luck with it though man!
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Old Sep 14, 2006 | 12:28 AM
  #3  
89Nighthawk's Avatar
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From: Texas
Car: 89 GTA Nighthawk
Engine: 389 CID Vortec TPI
Transmission: TCI 700R4 w/Vigilante
Desktop DYNO says, 421 hp at 6500 rpm, 372 tq at 5500 rpm.
That's with stock flowing Vortec heads and small tube headers.
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Old Sep 14, 2006 | 10:01 PM
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redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
thats about what i expected and wanted shooting for 335+ rwhp
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Old Sep 15, 2006 | 11:58 PM
  #5  
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From: Texas
Car: 89 GTA Nighthawk
Engine: 389 CID Vortec TPI
Transmission: TCI 700R4 w/Vigilante
Well, as the old saying goes, "their's no replacement for displacement. Bigger means more power, if you want more.
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Old Sep 16, 2006 | 12:03 AM
  #6  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
yeah i've been contemplating the 363 stroker kit from speedomotive that plus that cam would be even more power. just gotta enlarge the budget a little lol.

Last edited by redcamaro83; Sep 16, 2006 at 09:11 AM.
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Old Sep 16, 2006 | 12:03 AM
  #7  
rwdtech's Avatar
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but im wondering if the TPI will choke it, being a 383 and all...
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Old Sep 19, 2006 | 12:03 AM
  #8  
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From: Texas
Car: 89 GTA Nighthawk
Engine: 389 CID Vortec TPI
Transmission: TCI 700R4 w/Vigilante
A stock TPI will, get a high flowing base and some AS&M runners and you'll be good to go, or better yet a HSR.
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Old Sep 19, 2006 | 01:16 AM
  #9  
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Car: 1991 Z28 (sold)
nah im just going to do an LT1 intake conversion when i have the money. u guys are gonna hate me for telling u this, but im putting the TPI heads and intake on there (upgraded injectors tho) untill i have money to afford better stuff
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Old Sep 19, 2006 | 11:43 AM
  #10  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
Originally Posted by rwdtech
but im wondering if the TPI will choke it, being a 383 and all...
dunno bout the 383 but deffinately not my 363. here is the kit Speed-O-Motive - CHEVY 1 PC SEAL 350 TO 363 STROKER CRANK KIT

Last edited by redcamaro83; Aug 3, 2007 at 08:46 PM.
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Old Sep 19, 2006 | 11:46 AM
  #11  
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
Originally Posted by redcamaro83
dunno bout the 383 but deffinately not my 363. here is the kit Speed-O-Motive - CHEVY 1 PC SEAL 350 TO 363 STROKER CRANK KIT
oh and it will be used with the HSR
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Old Sep 19, 2006 | 11:48 AM
  #12  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
double post

Last edited by redcamaro83; Sep 19, 2006 at 11:53 AM.
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