Fast 102 and injectors
Thread Starter
Heel & Toe
Joined: Sep 2018
Posts: 23
Likes: 0
Fast 102 and injectors
I have a 2007 base but have a few goodies.. cam, exhaust, cai, headers and a tune. I wanna get a fast 102 and bigger injectors. How much can stock ls2 heads handle? What injectors are an easy swap without replacing the fuel rails? I just want to do an easy swap without too much of a pain in the butt having to spend time and money replacing parts. I did research but couldn't find enough info to make a move. Thanks
Safety Car
Joined: Aug 2017
Posts: 4,243
Likes: 1,133
From: North Myrtle Beach SC
you will need to get a retune after adding the FAST. what percent duty cycle were your stock injectors at during the previous tune? You might not need bigger injectors even with the intake swap. If you do, FAST sells injectors, they will hook you up.
Thread Starter
Heel & Toe
Joined: Sep 2018
Posts: 23
Likes: 0
The duty cycle was 92%. I called Texas speed performance and they said the same thing. Get it returned and he recommended to get 42# injectors. Just wondering how difficult it would be to do it myself.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
FAST injectors are ****, no data available as far as I know. Better to get some factory GM injectors with real data available instead.
(I prefer ID's but they are probably overkill for this situation..)
(I prefer ID's but they are probably overkill for this situation..)
Last edited by schpenxel; Jan 22, 2019 at 09:54 PM.
Former Vendor
Joined: Feb 2012
Posts: 26,512
Likes: 351
From: ST. CHARLES IL
If you need injectors stop by our site or give us a call. We have tons of options and great prices (discounts for board members). A set of 42lb injectors would be a good start but you will need to get your car tuned for both the injectors and the intake. You really shouldn't even drive a car after doing an injector swap without handling the tune first. If you're local to us we can do the install and the tune fairly cheap.
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