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urgent help needed!! what year do these TPIS runners fit??? [see pic]

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Old Jul 25, 2006 | 10:30 PM
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Car: 1989 IROC-Z
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urgent help needed!! what year do these TPIS runners fit??? [see pic]

Hello

I stumbled upon some tpis runners but i dont know what year they are for.
Are they 89 and later or 88 and earlier? I have an 89 do they fit? I beleive 89 doesnt have a 9th injector port.

THanks

Speed
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Old Jul 25, 2006 | 10:54 PM
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From: NJ
Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: BW 7.75" 3.27
Got any pics? Actually, you should do a search in the TPI forum for 1989 runner pics and compare what you find to what you have. Good luck, man.
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Old Jul 26, 2006 | 12:07 AM
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Umm, did you forget something... the pic, maybe? If you'd posted it, I could tell you.

The 9th injector port is in '85-'88 runners. The extra hole is located in the lower mounting flange of the driver's side runners. '89+ had no 9th injector, and therefore, no extra hole in the runner flange, making it similar to the flange of the passenger side runners.
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Old Jul 26, 2006 | 09:24 AM
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im such an idiot
Attached Thumbnails urgent help needed!! what year do these TPIS runners fit??? [see pic]-80_1.jpg  
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Old Jul 26, 2006 | 10:24 AM
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From: Oaks,Pa
Car: 89 IROC
Engine: 350 HSR
Transmission: modified 700R4
Axle/Gears: 3.42
that's for 89 and later yrs
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Old Jul 26, 2006 | 10:25 AM
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Car: 1989 IROC-Z
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Transmission: T56
Axle/Gears: Hybrid 8.8 3.73
thanks so much
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Old Jul 26, 2006 | 10:54 AM
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From: NJ
Car: 87 IROC
Engine: 5.7 TPI
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Axle/Gears: BW 7.75" 3.27
Are those runners modified to fit 89 and up, looks like the 9th hole is plugged or something. I've got an 87, so I wouldn't know if that is normal.
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Old Jul 26, 2006 | 11:07 AM
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Car: 1989 IROC-Z
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Transmission: T56
Axle/Gears: Hybrid 8.8 3.73
i dont know off hand. but these are a set of large tubes on ebay. They end in a few hours and i am going to pass on them. Thety are pretty cheap right now... maybe someone might get lucky.

Speed
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Old Jul 26, 2006 | 11:19 AM
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Originally Posted by 87IROCZ350TPI
Are those runners modified to fit 89 and up, looks like the 9th hole is plugged or something. I've got an 87, so I wouldn't know if that is normal.
That was my first impression when I looked at them. Looks like they may be 85-88 runners with the cold start delete kit.
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Old Jul 26, 2006 | 11:39 AM
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Axle/Gears: 9-bolt/3.45
That's how they're made by the company that makes them for TPiS(whose name may or may not be a secret, though I'd think it's obvious who it is). The same runners(with the hole) are used for all years, but rather than cast them both ways, they plug the hole for '89+ years(straight from the maker's mouth).

So if someone had a set for '85-'88 and wanted to delete his 9th injector or use them on an '89+, he would just do the same thing--plug that hole.

Last edited by LAFireboyd; Jul 27, 2006 at 09:19 AM.
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Old Jul 26, 2006 | 12:10 PM
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From: Las Vegas
Car: 1987 Formula (original owner)
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Axle/Gears: 9-bolt/3.45
Originally Posted by speedmachine
i dont know off hand. but these are a set of large tubes on ebay. They end in a few hours and i am going to pass on them. Thety are pretty cheap right now... maybe someone might get lucky.

Speed
Nothing appears wrong with those, based on the pic. They just appear to need some cleaning up. So if this is something you've been wanting, I'd say go for it. Brand new, they're between $400 and $500.
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Old Jul 26, 2006 | 12:17 PM
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From: Armpit state
Car: 71 Nova
Engine: Superramed 383, Topline heads
Transmission: 700r4
Axle/Gears: 8.2 posi 3.08
Originally Posted by LAFireboyd
Nothing appears wrong with those, based on the pic. They just appear to need some cleaning up. So if this is something you've been wanting, I'd say go for it. Brand new, they're between $400 and $500.
I would definatly ask questions and never go by pics. I bought a tpi setup on ebay a long while ago and the pics looked just fine. When I got the setup one of the runners was bent beyond repair and it was clear he left that part out of the photo. Might want to see what the other runner looks like since its upside down.
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Old Jul 26, 2006 | 12:53 PM
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From: Oaks,Pa
Car: 89 IROC
Engine: 350 HSR
Transmission: modified 700R4
Axle/Gears: 3.42
I've deleated the CSI on my 86 on both the stock runners & the ported SLP's
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