New LS1 Owners - Newbie Tech - New injectors w/ headers?
07-27-2004, 11:09 PM
Like it says... a local shop suggested that i replace my stock 28 lb'ers for svo 30 lb for about $220. He said that I should this at the same time i put on my hookers and y pipe, which after i was going to have him tune. This was rick at synergy motorsports here in nor cal. Any thoughts on this. I kinda thought that it was a little unusal, but I am a noob. I said though, why should I replace my LARGER injectors? He said that they dont make that big a difference, but then suggests 30 lb which is the same difference. any opinions?
07-27-2004, 11:44 PM
the stock 98 injectors are good for 450rwhp; your not even close to that.
07-28-2004, 12:35 AM
yea im a little confused y are you going to upgrade the injectors at all???
07-28-2004, 12:48 AM
ive installed a few sets of headers and never heard of upgrading injectors just becuase of headers
07-28-2004, 02:11 AM
i am not replacing them, but the owner of the shop i talked to suggested it and I am questioning that. I did SOME research and i have 28 lb'ers stock. I didnt think that I needed to go up to a 30, but he said i should, which is why I am asking for input. JRP seems to have a lot of knowledge on these cars so I figured maybe he could enlighten me. :)
while its true you dont need them for just a header install you could look at it as a long term setup. when you start adding h/c, n2o, ect you start running your injectors thin, meaning a 90-100% duty cycle. while with the svo's you can run an 70-80% duty cycle. just something to thing about :)
07-28-2004, 05:19 AM
Well he wants like $220 for the injectors and the install. Is it worth it? H/C is likely a good year away. School starts in sept. so after this only little stuff will be done to the car, i.e. stickers. :(
07-28-2004, 11:42 AM
I'd wait until I had the h/c installed. I believe my stock injectors were 26lb & on the stock motor was doing email@example.com @ 3700lb's. I would save the cash for now & wait for the cam upgrade.
I had my cam, headers, 1s6 intake & ported stock heads done all at one time & only put down 405 at the rear wheels as the stock injectors couldn't deliver enough fuel. I had 30lb svo injectors installed & boom-426 RWHP-396 RWTQ. Also trapping 120 mph @3700lbs. Long story short, your fine until the cam is upgraded. I went with a 228/228-.571/.571 on a 112 custom grind cam.-Fred
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