GReddy @ 15psi
1 Attachment(s)
Finally got the run files. Before the turbo and at 15psi. Enjoy! :bigtu:
|
I must say, I'm very impressed every time I read about your dyno run. Great job! You may have the fastest Greddy miata period.
|
Those are impressive numbers considering you aren't using a more capable ECU. You dyno plot goes against the common opinion that you can't get these kinds of power levels with an AFPR based system!
There is a dyno plot at FM's webpage of a greddy setup w/link doing over 260. In the description it says "It takes a little while for that turbo to spool..." Ironically it seems to get to peak tq as fast or faster than their 1.6 FM based setups. Good job! |
I dont get it..how is it possible to run those figures with emanage and 1.8 injectors.
Am I missing somthing here???? |
Lots of fuel pressure! And voodoo, don't forget the voodoo.
|
Originally Posted by tabs604
(Post 46594)
I dont get it..how is it possible to run those figures with emanage and 1.8 injectors.
Am I missing somthing here???? As I've posted in the past, many of the miata gurus (Keith from FM, Brant from BRP, markp, RodH) have said that the 99-00 1.8 injectors have lots of "headroom" for FI whatever that means. Maybe b/c they were designed around a returnless fuel rail that runs at 60psi they are more tolerant of higher pressures. Not sure. Granted, they "technically" shouldn't work, but they do. That said, I have a spare set of 310cc injectors in my garage should my WB or other data ever show that I am running lean or too high fuel pressures. FWIW, olderguy also runs 1.8 injectors at 15psi and has not had fueling issues either. Oh yeah, and I forgot....the special boost voodoo dance before I get on the dyno....haha |
makes me wonder what a peiburg can do for me.
|
Originally Posted by magnamx-5
(Post 46658)
makes me wonder what a peiburg can do for me.
|
Originally Posted by brgracer
(Post 46613)
It's more than just 1.8 injectors and emanage. I also have a Begi AFPR and Pierburg inline fuel pump as well as an RX-7 AFM and olderguy's autotune. While I agree that "technically" the 1.8 injectors shouldn't be able to support those #, well...they do, and both the tailpipe sniffer and my pre-cat WB show that I am not running lean.
As I've posted in the past, many of the miata gurus (Keith from FM, Brant from BRP, markp, RodH) have said that the 99-00 1.8 injectors have lots of "headroom" for FI whatever that means. Maybe b/c they were designed around a returnless fuel rail that runs at 60psi they are more tolerant of higher pressures. Not sure. Granted, they "technically" shouldn't work, but they do. That said, I have a spare set of 310cc injectors in my garage should my WB or other data ever show that I am running lean or too high fuel pressures. FWIW, olderguy also runs 1.8 injectors at 15psi and has not had fueling issues either. Oh yeah, and I forgot....the special boost voodoo dance before I get on the dyno....haha What kinda fuel pressure are you seeing at 15psi? I used to run about 110psi or so on 270's ( I know I was rich like Bill Gates )....just wondering:) |
I think he said he was around 100psi or so.
|
Originally Posted by AndyFloyd
(Post 46689)
What kinda fuel pressure are you seeing at 15psi? I used to run about 110psi or so on 270's ( I know I was rich like Bill Gates )....just wondering:)
|
Originally Posted by brgracer
(Post 46613)
Oh yeah, and I forgot....the special boost voodoo dance before I get on the dyno....haha
|
Originally Posted by brgracer
(Post 46691)
Right around 90-100psi last I checked.
|
I'm feeding my 305s 100psi of fuel at 9psi of boost. I'm recording 12:1 and slowly getting richer nearing redline.
330s at 100psi are good for about 275 BHP |
Originally Posted by braineack
(Post 46698)
I'm feeding my 305s 100psi of fuel at 9psi of boost. I'm recording 12:1 and slowly getting richer nearing redline.
330s at 100psi are good for about 275 BHP |
POP and a few others suggested it to me. But Corky was nice enough to send me one of his.
|
What injector duty cycles are you guys running?
I only had fuel for 13psi with 440's at a static 80 psi. |
The highest that was logged by the Emanage was 91 just at the end of the run, but there was no additional injection at that time. The highest I can read in fuel pressure that logs is 97psi(so it could have gone over 100), but that only held for about 1/10th of a second.
I don't fully trust the Emanage logging 'cause it is only picking off in 1/10 seconds. The control factor is happening much more quickly. |
My highest logged duty cycle was 92-93 very briefly as well toward the end. No additional injection at that point as well.
Also agree with the emanage logging as some numbers do not correlate with the LC-1 numbers that logs much faster. |
You guys have to remember at those high pressures that the internal injector "needle" has to close against those pressures in 1 complete duty cycle. So even though your around a 85-90% duty cycle, the injector may still lag due to the increased pressure it sees when the needle is open. I can't see this being good for injectors over the long run.
|
All times are GMT -4. The time now is 03:42 PM. |
© 2024 MH Sub I, LLC dba Internet Brands