Holley EFI System?
Thread Starter
Racer
Joined: May 2007
Posts: 424
Likes: 0
Holley EFI System?
Anyone have any luck using one of the Holley EFI - self tuning systems? I'm currently have issues once again with some type of computer issue and and have been looking into this system to replace my stock computer (with newly reflashed chip). It may just be that I need to get my chip re flashed again cause something is off on the programing but if that idea fails I need to do something.
I would rather not spend the $$ at the shop to tell me they cant find the problem and instead replace the entire system. Any info would be great!....Its a high possibility I will go down this road if the computer issue doesn't get sorted out soon!
Thanks
I would rather not spend the $$ at the shop to tell me they cant find the problem and instead replace the entire system. Any info would be great!....Its a high possibility I will go down this road if the computer issue doesn't get sorted out soon!
Thanks
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Some more info on your setup and problems would help
Do you have a stock engine or a radical stroker motor???????
Thread Starter
Racer
Joined: May 2007
Posts: 424
Likes: 0
Comp cams hydraulic roller duration 242/248 lift 585/580
afr heads 195cc ported eliminator 75cc double valve springs, hardened retainers and locks, 1.6 comp cams rocker arms, 2.05" stainless intake valves 1.6" exhaust valves
Superram intake with lingenfelter 1000cfm throttle body
Hooker headers 1 3/4"
3" exhaust
36# injectors
Walboro 255 fuel pump
Thread Starter
Racer
Joined: May 2007
Posts: 424
Likes: 0
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
What is the LSA on the cam?
If those are the @ 50 duration numbers you are going to want a gun tuner
Even a "self tuning" system is going to have problems adjusting to that degree of valve overlap at idle
Last edited by vetteoz; Apr 10, 2013 at 02:42 AM.
Race Director
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Those are some healthy duration numbers for a SuperRam. The SuperRam is made for mid to mid-high rpm torque. I ran mine to 6600 with my 406 and an extrude honed SuperRam. Your cam would be ideal for even higher rpms. You should still be able to get the thing to run though.
Melting Slicks
Joined: Jun 2011
Posts: 2,377
Likes: 385
From: Leland , North Carolina
Anyone have any luck using one of the Holley EFI - self tuning systems? I'm currently have issues once again with some type of computer issue and and have been looking into this system to replace my stock computer (with newly reflashed chip). It may just be that I need to get my chip re flashed again cause something is off on the programing but if that idea fails I need to do something.
I would rather not spend the $$ at the shop to tell me they cant find the problem and instead replace the entire system. Any info would be great!....Its a high possibility I will go down this road if the computer issue doesn't get sorted out soon!
Thanks
I would rather not spend the $$ at the shop to tell me they cant find the problem and instead replace the entire system. Any info would be great!....Its a high possibility I will go down this road if the computer issue doesn't get sorted out soon!
Thanks
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Thread Starter
Racer
Joined: May 2007
Posts: 424
Likes: 0
just talked to the shop and they recommend sending my computer and chip back to pcm and have them run thru it again!! Not sure if I wanna do this again and wait a month and spend another $200...if I have to do this back and forth crap with pcmforless a few more times I could have bought an EFI system!
Anyone kow of any other good systems like the EFI?
Anyone kow of any other good systems like the EFI?
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I use the FAST XFI 2.0 , very easy to use, although I am still learning, but I agree that those duration's are tough to tune.
I had 238/242 and your overlap is worse than mine, you can tune the mid and upper RPM levels but idle will be very tough
I had 238/242 and your overlap is worse than mine, you can tune the mid and upper RPM levels but idle will be very tough
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
It depends on what his "issues" are.
My 238/242 on 112/cl idled perfectly, never had an idle quality problem with the 165 ECM or the FAST XFI.
But for me, the fuel smell was the main issue, many people on the forum over time stated that they were able to tune big cams, later to find out that, fuel rich smell did not bother them, so this part of tuning, i.e. fuel smell is subjective.
If not for the fuel smell, I would have kept my 238/242 or even gone with a still bigger cam
If you want to know what your overlap is, use this easy calc
http://www.wallaceracing.com/overlap-calc.php
My 238/242 on 112/cl idled perfectly, never had an idle quality problem with the 165 ECM or the FAST XFI.
But for me, the fuel smell was the main issue, many people on the forum over time stated that they were able to tune big cams, later to find out that, fuel rich smell did not bother them, so this part of tuning, i.e. fuel smell is subjective.
If not for the fuel smell, I would have kept my 238/242 or even gone with a still bigger cam
If you want to know what your overlap is, use this easy calc
http://www.wallaceracing.com/overlap-calc.php
