305 TPI power?
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Joined: Jan 2007
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From: Topeka, KS
Car: 1992 Z28
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 10 bolt posi. G80
305 TPI power?
What kind of numbers are some of you putting down by building up your 305 TPI. Any and all welcome. Just curious. Thanks
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From: Guelph, Ontario
Car: 89 IROC/05 RX8
Engine: LS1/LS1
Transmission: T56/T56
Axle/Gears: 3.42 GM/3.55 8.8
My 305:
Performance Modifications:
Lt1 Cam
LT1 Lifter
Comp Single Valve springs (w. damper)
Edelbrock TES Headers
Taylor Spiro-Pro Ignition Cables
Ported TPI Base
Ported TPI Plenum
Air foil
Iridium spark plugs
3.42 Disc Rear
Visual:
Chrome Timing Cover
Painted TPI System
Painted Rocker Covers
Painted Headers
Not nessecarily performance, but takes away drag:
A/C system removed
Plans:
AS&M Big tube runners
Edelbrock Hi-flo Intake
LS1 driveshaft
Right now its making about 200rwhp
With above mods, should make about 220rwhp.
Could be quicker, but seeing i have spent less then $300 getting all of this together, im going to say its afair bit of engine, for tiny dough.
Sheldon
Performance Modifications:
Lt1 Cam
LT1 Lifter
Comp Single Valve springs (w. damper)
Edelbrock TES Headers
Taylor Spiro-Pro Ignition Cables
Ported TPI Base
Ported TPI Plenum
Air foil
Iridium spark plugs
3.42 Disc Rear
Visual:
Chrome Timing Cover
Painted TPI System
Painted Rocker Covers
Painted Headers
Not nessecarily performance, but takes away drag:
A/C system removed
Plans:
AS&M Big tube runners
Edelbrock Hi-flo Intake
LS1 driveshaft
Right now its making about 200rwhp
With above mods, should make about 220rwhp.
Could be quicker, but seeing i have spent less then $300 getting all of this together, im going to say its afair bit of engine, for tiny dough.
Sheldon
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Joined: Jun 2001
Posts: 461
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From: Columbus, Ohio
Car: 92 Camaro RS
Engine: 350 TPI
Transmission: T5 manual
It was a TBI car
Modifications:
LT1 Cam
World S/R torqer 305 heads
SLP Runners
Ported TPI Plenum
Port matched TPI Base
Air foil
3.42 Rear gears
Hooker shorty headers & cat-back
It did 220 rwhp this past summer and it was running a full point rich. With some tuning I think it can get 225-230 easily.
Modifications:
LT1 Cam
World S/R torqer 305 heads
SLP Runners
Ported TPI Plenum
Port matched TPI Base
Air foil
3.42 Rear gears
Hooker shorty headers & cat-back
It did 220 rwhp this past summer and it was running a full point rich. With some tuning I think it can get 225-230 easily.
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From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
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From: Hamilton
Car: 1990 IROCZ Camaro
Engine: 350 4bbl, 200cc Heads, 270hr Cam
Transmission: 700R4 w/ Trans-Go shift kit.
Axle/Gears: GM 10 bolt Posi
LS1 = O O O O
L98 = O OO O
As for 305 power, you have guys on here making between 200-250 rwhp with average modification. If you did the same mods for a 350 youd be closer to the 300 side.
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