[Z06] 30# injectors...Do I need them?
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
Likes: 0
From: Austin, TX USA
30# injectors...Do I need them?
I have a 2002 Z06 with MTI intake, C1 cam, off road x-pipe, pulley, PCM reprogram, TPIS headers and Borla Stinger. Have a set of MTI Stage II heads on the way too. WIll I benifit from adding 30 # injectors? If so, will the PCM have to be reprogramed again? How much for the injectors and where to get them?
Thanks!
Thanks!
Drifting
Joined: Jul 2002
Posts: 1,446
Likes: 1
From: Garden State
Re: 30# injectors...Do I need them? (MillenniumVette)
Wow with all that stuff you Z must be really quick. I guess your not worried about warranty issues? Just commenting, I don't know anything about what you asked. :jester
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
Likes: 0
From: Austin, TX USA
Re: 30# injectors...Do I need them? (edv2122)
Not really worried about warranty. Started moding at 680 miles... Although have already had the clutch replaced under waranty, so go figure. The car is fast, but it's just never fast enough.....
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Re: 30# injectors...Do I need them? (MillenniumVette)
Short answer is yes. The stock injectors are running as much as 90% duty cycle on a stock motor - with your mods you should go with 30's and tune them in.
Les
Les
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Re: 30# injectors...Do I need them? (MillenniumVette)
I used SVO 30# injctors, you can get them through Summit, Jegs as well as some of the forum vendors - it pays to shop :)
You will need to dial in the A/F with the larger injectors with either LS6Edit or a MAFT. Otherwise with the larger injector getting the same pulse width message from the ECM you will likely run way rich.
Les
You will need to dial in the A/F with the larger injectors with either LS6Edit or a MAFT. Otherwise with the larger injector getting the same pulse width message from the ECM you will likely run way rich.
Les
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
Re: 30# injectors...Do I need them? (ZO6Les)
Ok, so I guess the SVO's are a direc plug in? I have already paid $500 to have the PCM reprogramed once,so not sure I want to just stick a MAFT on it. How much are they and where did you get yours? I am not sure I would want to start messing around with LS1 edit either....
Drifting
Joined: Nov 2001
Posts: 1,684
Likes: 0
From: Jacksonville Florida
Re: 30# injectors...Do I need them? (MillenniumVette)
Ouch on the $500! Yes the 30's are plug and play but I do not recommend changing injectors without changing the tuning. If whoever did your tuning is very good it is possible to stay the way you are, a wideband 02 dyno with a scanner as well will tell you if you are getting enough fuel. If it ain't broke, don't fix it :)
Les
Les
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Thread Starter
Racer
Joined: Jun 2000
Posts: 396
Likes: 0
From: Austin, TX USA
Re: 30# injectors...Do I need them? (ZO6Les)
Well see there's the problem....it defintely aint broke!!! I talked to Jeff at MTI and he said the stock injectors are fine for a heads and cam car. He said that his personal 422 stroker Z06 had stock injectors..... I guess I would like to see an example where someone gained HP while changing nothig but the injectors on a heads and cam car...
Drifting
Joined: Feb 2000
Posts: 1,513
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From: Lake Travis TX
Re: 30# injectors...Do I need them? (MillenniumVette)
Dale- ive been wondering the same thing. i think im going to go ahead and upgrade the injectors just to be safe- MTI should re-tune the car when you put the heads on, just have them throw the injectors on at the same time ;)
Thread Starter
Racer
Joined: Jun 2000
Posts: 396
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From: Austin, TX USA
Re: 30# injectors...Do I need them? (KDubb)
Dale- ive been wondering the same thing. i think im going to go ahead and upgrade the injectors just to be safe- MTI should re-tune the car when you put the heads on, just have them throw the injectors on at the same time ;)
Perfect! You just go ahead and do it hen let me know how it turns out!!! ;)
Safety Car
Joined: Mar 2002
Posts: 4,928
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Cruise-In V Veteran
St. Jude Donor '09
Re: 30# injectors...Do I need them? (MillenniumVette)
Hey MillenniumVette,
Just saw these in the for sale section .
I have no idea what they are worth??? :cheers:
http://forums.corvetteforum.com/zerothread?id=354863
[Modified by binksZ06, 11:17 PM 8/1/2002]
Just saw these in the for sale section .
I have no idea what they are worth??? :cheers:
http://forums.corvetteforum.com/zerothread?id=354863
[Modified by binksZ06, 11:17 PM 8/1/2002]
Advanced
Joined: Jan 2002
Posts: 83
Likes: 0
From: houston tx
Re: 30# injectors...Do I need them? (MillenniumVette)
I have an MTI stage 2 package with stock injectors on my 01 ZO6. The car runs fine on the street and on the track. Actually it goes like a bat out of hell. Jeff knows what he's doing and I don't think he would send out a motor that would go lean. It may be just a matter of increasing fuel pressure. I think you are probobly ok. I would however like to see some performance comparisons.
