400 TPI?
Thread Starter
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
400 TPI?
I plan on putting a 400 under my tpi right now I am using 24# inj. and a 52mm throttle body will it feed the required fuel?
Member
Joined: Aug 1999
Posts: 345
Likes: 0
From: Jackson, Miss., CSA
Car: '87 IROC-Z
Engine: 406 Superram/DFI
Transmission: Auto BTE 3000 conv
As long as you don't have any kind of power adder and you do have a custom chip you'll probably be alright. What are your other mods to it?
------------------
87 IROC-Z, 5.7, auto, 3.27, leather, !cat, Holley fpr, K&N'S, SLP 1-3/4" Jet-Hot coated headers, SLP .218/.224 .495/.502 cam, Comp 1.5 roller tip rockers, $uperPITAram, Edelbrock lower intake, Holley 52mm tb, Dynomax\Flowmaster catback. Coming Soon(?)- Fasttrack/Accell DFI
1989 Pontiac 20th Anniversary Turbo Trans Am - 160,000 miles, K&N filter
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87 IROC-Z, 5.7, auto, 3.27, leather, !cat, Holley fpr, K&N'S, SLP 1-3/4" Jet-Hot coated headers, SLP .218/.224 .495/.502 cam, Comp 1.5 roller tip rockers, $uperPITAram, Edelbrock lower intake, Holley 52mm tb, Dynomax\Flowmaster catback. Coming Soon(?)- Fasttrack/Accell DFI
1989 Pontiac 20th Anniversary Turbo Trans Am - 160,000 miles, K&N filter
Thread Starter
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
I will be using a bigger cam in the 400. no chip though the 350 runs like a raped ape with the factory one.
Supreme Member
Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Just make sure you wont go lean......
I'm planning of stroke my engine to a 383 and I will try to have same injectors and prom.....
I'm planning of stroke my engine to a 383 and I will try to have same injectors and prom.....
Member
Joined: Jul 1999
Posts: 131
Likes: 5
From: Troy, MI USA
One of the recent books had a formula for calculating the desired injector size... think it mighta been GMHTP.
Might want to throw a post to Johnny Hunkins to see if he still has his ears on the board.
BOB
Might want to throw a post to Johnny Hunkins to see if he still has his ears on the board.
BOB
Junior Member
Joined: Oct 2000
Posts: 94
Likes: 0
From: Tacoma, WA
There is an article on selecting injector size at http://www.iroc-z.org .
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