Porting TPI bases
12-05-2016, 09:53 AM
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Car: 1986 Iroc Z 28
Engine: 383
Transmission: 4L60
Axle/Gears: 3.73
Porting TPI bases
Does anybody know of a shop that stills ports TPI bases? Hi Flow Fuel Injection used to but he doesnt do it anymore.
12-05-2016, 11:21 AM
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Car: 1989 Pontiac Formula 350
Engine: L98
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Re: Porting TPI bases
There's a guy on eBay that posts up a bunch there, but no idea how good their work is.
12-05-2016, 11:33 AM
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Car: 1986 Iroc Z 28
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12-05-2016, 02:36 PM
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12-05-2016, 06:08 PM
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Re: Porting TPI bases
Back in the TPI days, a few magazines did this process in some builds. They all were happy with the results, took a lot of meat out.
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12-10-2016, 09:46 PM
#8
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Re: Porting TPI bases
Check these guys out for extrude honing.
http://www.extrudehoneafm.com/industries/automotive/
Also here is a good article where they extrude honed a stock tpi base and got some impressive flow numbers out of it.
http://www.powerperformancenews.com/...tion-upgrades/
http://www.extrudehoneafm.com/industries/automotive/
Also here is a good article where they extrude honed a stock tpi base and got some impressive flow numbers out of it.
http://www.powerperformancenews.com/...tion-upgrades/