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Old Nov 13, 2000 | 12:48 PM
  #1  
cobrakiller1989's Avatar
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From: Baltimore, MD
TPI mods

As soon as I can afford to buy the rest of the stuff I need I am going to be switching to TPI in my car. I was wondering if anyone knows of any sites with free mods or cheap mods that i can do to my TPI while I have it off. Also what do you guys recommend for a more productive TPI system(than stock). One more thing, what does it mean to siamese the runners.
Thanks alot
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Old Nov 13, 2000 | 01:14 PM
  #2  
Kevin91Z's Avatar
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Have you read the tech articles and the FAQ on this site? There's lots of good stuff in there.

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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Old Nov 13, 2000 | 01:27 PM
  #3  
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From: Staten Island, NY
http://members.aol.com/mmmm999/3rd-degree/home.htm

[This message has been edited by ron rizzotti (edited November 13, 2000).]
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Old Nov 13, 2000 | 07:52 PM
  #4  
GMTech's Avatar
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From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
I wouldn't do anything drastic. You will probably run into enough obstacles doing the retrofit, than to have to worry about alot of other stuff. When I did my retrofit, I stuck to small things, like ported plenum.

Once you get the swap finalized and running smooth, than I would concentrate on the mods.

One thing I regret NOT doing was the AFPR, because now I have to take the plenum back off, but thats about it.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Ported Plenum,
TB Coolant Bypass,
SSM SFC,
Boxed LCAs,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims.

'97 Bonneville SSE
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Old Nov 14, 2000 | 04:25 PM
  #5  
speed88's Avatar
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From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
Get a AFPR before you put it all together again!! Also, TB airfoil, port match plenum, runners, maifold; bigger TB, larger injectors???? Something to consider.

------------------
88 GTA
L98 350
700R4
3:27 axle
MODS,
Edelbrock TES headers, 2.5" straight pipe, Flowmaster 80 series, K&N filter, Accel 8.8mm wires, Bosch Platinum plugs, Wells cap and rotor button, Wells ignition module, MAF screens removed, Hypertech TB air foil, Thermomaster stage II chip, 180* Powerstat, Hypertech cool fan switch, B&M shift kit, B&M power clutch pack, B&M servo, GM fuel filter.
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Old Nov 14, 2000 | 09:45 PM
  #6  
Kevin Irving's Avatar
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From: Norfolk, VA
Car: 1985 Trans Am
Engine: 305 TPI
Transmission: 700R4
Don't forget about the TB Coolant Bypass GM Tech!!

That's good for at least 10 RWHP!!! LOL

------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Cyclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/
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Old Nov 15, 2000 | 08:49 AM
  #7  
Yarnboy's Avatar
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From: Frederick, MD USA
You forgot the decimal point before the 10...=)

------------------
-Red '88 IROC 5 Speed 305 TPI w/3.08
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Grove Plugs
-Flowmaster Force II 3 Chamber Cat Back Exhaust
-Hypertech Chip
-Hypertech Airfoil
-Removed, Then Re-installed (out of fear) MAF Screens
-Gutted Air Box
-Best E/T 14.90, 60 ft. 2.17, 1/8th mile 9.61(bald tires, Code's 34,36)
-Best MPH 92.7(bald tires)
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Old Nov 15, 2000 | 08:52 AM
  #8  
Kevin Irving's Avatar
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From: Norfolk, VA
Car: 1985 Trans Am
Engine: 305 TPI
Transmission: 700R4
No, that was intentional... I actually saw a guy who claimed that the TB Coolant Bypass was worth 10 HP... LOL

------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/
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Old Nov 15, 2000 | 09:11 AM
  #9  
Yarnboy's Avatar
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From: Frederick, MD USA
Just like I gained 4 tenths from putting in 94 Octane! hah

------------------
-Red '88 IROC 5 Speed 305 TPI w/3.08
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Grove Plugs
-Flowmaster Force II 3 Chamber Cat Back Exhaust
-Hypertech Chip
-Hypertech Airfoil
-Removed, Then Re-installed (out of fear) MAF Screens
-Gutted Air Box
-Best E/T 14.90, 60 ft. 2.17, 1/8th mile 9.61(bald tires, Code's 34,36)
-Best MPH 92.7(bald tires)
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Old Nov 15, 2000 | 12:04 PM
  #10  
gravitar's Avatar
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From: Centerline, MI 48015
10HP huh? Engine must've been overheating pretty bad for the TB temp to make that big of a difference..
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