Anyone go from TPI to Stealth RAM?
Thread Starter
Junior Member
Joined: Jun 2004
Posts: 23
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From: Kingston, Ontario, Canada
Car: 88 IROC-Z, 01 10th Firehawk M6
Engine: 355 TPI/425 HP
Transmission: Vette 700-R4
Axle/Gears: 3:73
Anyone go from TPI to Stealth RAM?
Interested in going from my TPI to the Stealth Ram to allow my cam breathe beyond 4800rpm which it needs. For those who have done the switch, what else was needed to be purchased to do the swap when starting with a TPI already?
Also, was it a difficult swap and what was the time frame to do it roughly?
Lastly; how much of a differance (seat of pants) did it feel like or do you have numbers to prove? Would you recommend the swap?
Thx
Also, was it a difficult swap and what was the time frame to do it roughly?
Lastly; how much of a differance (seat of pants) did it feel like or do you have numbers to prove? Would you recommend the swap?
Thx
Senior Member
iTrader: (8)
Joined: Jun 2009
Posts: 768
Likes: 2
From: Peoria, AZ
Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Anyone go from TPI to Stealth RAM?
This is great post for the Alternative intake's forum
Senior Member
Joined: Jul 2006
Posts: 811
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From: 4-22 / 7-25
Car: '91 Z28 L98 G92
Engine: Modded L98
Transmission: Modded 700R4
Axle/Gears: Modded 10-Bolt
Re: Anyone go from TPI to Stealth RAM?
Do a search for "My HSR Swap" by Orr89RocZ.
Dials you right in.
Bill
Dials you right in.
Bill
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Anyone go from TPI to Stealth RAM?
https://www.thirdgen.org/forums/alte...r-install.html
Built 383, all the good gear
Big tube TPI, fully ported plenum , siamised base ,58mm TB; 12.7
Swap to HSR only ;12.3 on same tune
Last edited by vetteoz; May 4, 2010 at 10:37 AM.
Supreme Member
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Posts: 7,964
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Re: Anyone go from TPI to Stealth RAM?
took a few hours to install.
Here is my dyno sheet. Stock HP was 195 at the flywheel since I have the automatic cam, car was an auto.
Dyno Run,
http://www.youtube.com/watch?v=rza_uG-ClX0
Here is my dyno sheet. Stock HP was 195 at the flywheel since I have the automatic cam, car was an auto.
Dyno Run,
http://www.youtube.com/watch?v=rza_uG-ClX0
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Anyone go from TPI to Stealth RAM?
13.63 at 97 mph with stock TPI on my L98.
12.95 at 103.8 mph with HSR/underdrive pullies/1.6 rockers/drag wheels/skinnies up front in great air conditions. Most of that gain was in HSR. Same weather conditions as TPI run and no drag wheels it was doing 13.2's at 100-101.
Stock Long block L98. If you have more mods like cam/heads, the gains with HSR will be greater.
12.95 at 103.8 mph with HSR/underdrive pullies/1.6 rockers/drag wheels/skinnies up front in great air conditions. Most of that gain was in HSR. Same weather conditions as TPI run and no drag wheels it was doing 13.2's at 100-101.
Stock Long block L98. If you have more mods like cam/heads, the gains with HSR will be greater.
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