FIRST Fuel Injection TPI System
10-20-2010, 05:24 PM
#51
Re: FIRST Fuel Injection TPI System
1.What do you mean by exhaust termination boxes?
Here is an article by David Vizard on termination boxes or resonator boxes. You can do a goodle search on exhaust termination boxes. Plenty on the subject.
http://www.superchevy.com/technical/...xh/index1.html
2.My primaries are 1 5/8. Do you think it would be worth investing in Don's 1 3/4?
IMHO 1 5/8" headers are to small for a performance 383. I think Don's 1 3/4" headers would be an improvement because they are not only larger but they fit the wider AFR exhaust port better than any header on the market.
Here is an article by David Vizard on termination boxes or resonator boxes. You can do a goodle search on exhaust termination boxes. Plenty on the subject.
http://www.superchevy.com/technical/...xh/index1.html
2.My primaries are 1 5/8. Do you think it would be worth investing in Don's 1 3/4?
IMHO 1 5/8" headers are to small for a performance 383. I think Don's 1 3/4" headers would be an improvement because they are not only larger but they fit the wider AFR exhaust port better than any header on the market.
10-20-2010, 05:27 PM
#53
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Car: 1988 IROC Camaro
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Transmission: 700R4 built by Bookers Transmission
Axle/Gears: 3.42
Re: FIRST Fuel Injection TPI System
Yes that is Rbob's system. He has been very helpful with my long road of tuning and running into problems. He responds to emails very quickly. I would recommend this setup for the money and support if you ever want to change.
10-20-2010, 05:35 PM
#54
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Car: 1988 IROC Camaro
Engine: 383
Transmission: 700R4 built by Bookers Transmission
Axle/Gears: 3.42
Re: FIRST Fuel Injection TPI System
1.What do you mean by exhaust termination boxes?
Here is an article by David Vizard on termination boxes or resonator boxes. You can do a goodle search on exhaust termination boxes. Plenty on the subject.
http://www.superchevy.com/technical/...xh/index1.html
2.My primaries are 1 5/8. Do you think it would be worth investing in Don's 1 3/4?
IMHO 1 5/8" headers are to small for a performance 383. I think Don's 1 3/4" headers would be an improvement because they are not only larger but they fit the wider AFR exhaust port better than any header on the market.
Here is an article by David Vizard on termination boxes or resonator boxes. You can do a goodle search on exhaust termination boxes. Plenty on the subject.
http://www.superchevy.com/technical/...xh/index1.html
2.My primaries are 1 5/8. Do you think it would be worth investing in Don's 1 3/4?
IMHO 1 5/8" headers are to small for a performance 383. I think Don's 1 3/4" headers would be an improvement because they are not only larger but they fit the wider AFR exhaust port better than any header on the market.
10-20-2010, 05:49 PM
#56
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Car: 1988 IROC Camaro
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Transmission: 700R4 built by Bookers Transmission
Axle/Gears: 3.42
Re: FIRST Fuel Injection TPI System
Thanks. I will have to contact Don sometime. If you have any undershots of your car, I would be interested in checking your set up out if you don't mind. If not, that is cool either way.
10-20-2010, 06:42 PM
#57
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: FIRST Fuel Injection TPI System
It's similar to this but larger pipes/
10-20-2010, 07:14 PM
#59
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Car: 1988 IROC Camaro
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Re: FIRST Fuel Injection TPI System
Looks good. I am running the single cat back with no cat at all because in Oklahoma there is no emissions at all. I am running no smog or anything.
11-18-2010, 12:11 PM
#61
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Car: 1988 IROC Camaro
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Re: FIRST Fuel Injection TPI System
Dyno Don, I am running the Headmen shorties on my car as of right now with 210 AFR heads. From what I can tell, your headers are built to match up to the AFR exhaust port?
Also If I were to install a set of your headers, would my existing Y pipe work or are the lengths different than most other headers?
05-18-2011, 08:45 PM
#62
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Car: 1989 IROC-Z
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Re: FIRST Fuel Injection TPI System
Great informatino here, I'm sold on the FIRST system. It has everything I want. Low end tourqe, fat midrange, and good daily driver set up! awsome!
05-19-2011, 10:42 AM
#63
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: FIRST Fuel Injection TPI System
Dyno Don, I am running the Headmen shorties on my car as of right now with 210 AFR heads. From what I can tell, your headers are built to match up to the AFR exhaust port?
Also If I were to install a set of your headers, would my existing Y pipe work or are the lengths different than most other headers?
Also If I were to install a set of your headers, would my existing Y pipe work or are the lengths different than most other headers?
No, the connections are totally different.
Each header and y-pipe combination are unique.
I was checking with Ken and he now makes an LT1 setup that uses a stock type throttle body (dual openings).
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