TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Stealth Ram strut tower brace!

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Old Aug 14, 2002 | 11:41 PM
  #1  
bbunting's Avatar
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From: CR, Iowa
Car: 1990 IROC Z
Engine: blown 390 CI
Transmission: TKO II
Stealth Ram strut tower brace!

stealth ram pics
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Old Aug 15, 2002 | 12:06 AM
  #2  
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From: chi-town
Question, how did you get that tiny port to fit on your large (1206) heads.....i'm curious
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Old Aug 15, 2002 | 09:14 AM
  #3  
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From: CR, Iowa
Car: 1990 IROC Z
Engine: blown 390 CI
Transmission: TKO II
89procharged-the intake was a lengthy procedure. I know that I saw somewhere that any machine shop could do it for $150? Well, here is how mine was done for $345, in my words, and it is perfect-both CNC and by hand:

1) weld 360 degrees around the port
2) weld 1/2" material to the roof of the port
3) re-machine the gasket face of the intake
4) machine the outside roof for valve cover clearance
5) dye the face and scribe to 1206
6) hand finish the ports

The other problem is that when your heads are already at a 1206, the stock intake runnner dividers do not match the heads. Those had to be re-machined to line up. Any other questions, or technical questions-Performance Concepts-319-373-6982. I am just the "driver"
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Old Aug 15, 2002 | 09:33 AM
  #4  
Poppa Chubby's Avatar
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Joined: Jul 1999
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From: Omaha, NE
Car: Vert IROC Camaro
Engine: 355ci
Transmission: T-5
Axle/Gears: 9-bolt w/3.45s
You've got to have absolutely NO hood clearance.

Are you running a cowl hood? How tall?
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Old Aug 15, 2002 | 09:35 AM
  #5  
bbunting's Avatar
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From: CR, Iowa
Car: 1990 IROC Z
Engine: blown 390 CI
Transmission: TKO II
Originally posted by Poppa Chubby
You've got to have absolutely NO hood clearance.

Are you running a cowl hood? How tall?

Yes- I am running a 4" cowl-however, the brace is on it's highest setting- it can be lowered over an inch- we want to make sure that the engine doesn't torque up at all-then we will drop the bar down for final mount-they also have a design that is being fitted that allows for the stock hood

Last edited by bbunting; Aug 15, 2002 at 09:41 AM.
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Old Aug 15, 2002 | 09:48 AM
  #6  
Poppa Chubby's Avatar
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Joined: Jul 1999
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From: Omaha, NE
Car: Vert IROC Camaro
Engine: 355ci
Transmission: T-5
Axle/Gears: 9-bolt w/3.45s
OMG!

I'm going thru the rest of your pics and I see all the porting that's been done to the plenum!!

Do you really need to flow that much?!

WOW!
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Old Aug 15, 2002 | 10:01 AM
  #7  
bbunting's Avatar
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From: CR, Iowa
Car: 1990 IROC Z
Engine: blown 390 CI
Transmission: TKO II
Originally posted by Poppa Chubby
OMG!

I'm going thru the rest of your pics and I see all the porting that's been done to the plenum!!

Do you really need to flow that much?!

WOW!
Well, with the YS Trim, and hopefully 15-18 lbs. of boost with the cog belt, 72 lb. per hour injectors-not sure, but we'll find out-shooting for 600+ RWHP
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Old Aug 15, 2002 | 10:07 AM
  #8  
Poppa Chubby's Avatar
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Joined: Jul 1999
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From: Omaha, NE
Car: Vert IROC Camaro
Engine: 355ci
Transmission: T-5
Axle/Gears: 9-bolt w/3.45s
WOW! How soon until she's running?
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Old Aug 15, 2002 | 10:12 AM
  #9  
bbunting's Avatar
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From: CR, Iowa
Car: 1990 IROC Z
Engine: blown 390 CI
Transmission: TKO II
The new blower goes on this weekend, waiting for Blownbird's cogs to get here- the car will then go on the dyno for the DFI tuning on the 26th I hope

Last edited by bbunting; Aug 15, 2002 at 10:17 AM.
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Old Aug 15, 2002 | 10:19 AM
  #10  
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From: Orygun
Holy Jebus



Thats a bitchin ride man
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