vq35 17 deg. timing advance gains....
I have a question, if advancing timing only adds anything below 2300 rpms, then why are all those who have done the 3.5 swap so concerned with advancing timing on their engines?
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Damn, I gotta dyno my car already.....especially before I go boost this spring
......but I think I should be putting down atleast 240whp with intake,custom 2.5" exhaust(no res, no cats),headers,jet chip ecu(BS), 17*, ur udp....I think if I had a vafc I would be putting a little more because my car runs too effin rich, backfiring all over the place. But I should be putting up a dyno sheet real soon.....
......but I think I should be putting down atleast 240whp with intake,custom 2.5" exhaust(no res, no cats),headers,jet chip ecu(BS), 17*, ur udp....I think if I had a vafc I would be putting a little more because my car runs too effin rich, backfiring all over the place. But I should be putting up a dyno sheet real soon.....
Originally Posted by hacim105
I have a question, if advancing timing only adds anything below 2300 rpms, then why are all those who have done the 3.5 swap so concerned with advancing timing on their engines?
Originally Posted by Starchild2K2SE
but I think I should be putting down atleast 240whp
Are you taking bets
[QUOTE=NmexMAX]The timing you're referring to(and this thread as well) and the timing they're (JClaw) referring to is different.QUOTE]
Please elaborate, I didn't know that there is multiple kinds of timing. What is the difference between the 2?
Please elaborate, I didn't know that there is multiple kinds of timing. What is the difference between the 2?
Originally Posted by hacim105
Please elaborate, I didn't know that there is multiple kinds of timing.
Dealer 17* = Base timing.
JClaw = wants to advance ignition timing thru powerband
A33B = CVTC, cam timing on Intake cam
Originally Posted by NmexMAX
Cam timing, iginition timing, base iginition timing
Dealer 17* = Base timing.
JClaw = wants to advance ignition timing thru powerband
A33B = CVTC, cam timing on Intake cam
Dealer 17* = Base timing.
JClaw = wants to advance ignition timing thru powerband
A33B = CVTC, cam timing on Intake cam
Even the JWT ECU doesn't run as much timing as a stock 2k2 does.
Tilley, with basically the same car as me, put down 233whp. But he has a JWT ECU and had the A/F tuned through SAFC-II. I have neither. So I was maybe at 220whp/220wtq when I ran my 13.3.
Tilley, with basically the same car as me, put down 233whp. But he has a JWT ECU and had the A/F tuned through SAFC-II. I have neither. So I was maybe at 220whp/220wtq when I ran my 13.3.
Dunno but he said he had an SAFC-II. Maybe he was using the stock ECU at the time...
Anywho, to get back to the subject, you wont see much from a 1-2 degree advance.
I don't remember who, but someone advanced timing 8 degrees on a 3.0 and gained something like 12whp/10wtq throughout the powerband. He said we could probably get +15 degrees over stock 3.0 ECU timing with a VQ35.
And we have 94 Octane readily available 'round here...
Anywho, to get back to the subject, you wont see much from a 1-2 degree advance.
I don't remember who, but someone advanced timing 8 degrees on a 3.0 and gained something like 12whp/10wtq throughout the powerband. He said we could probably get +15 degrees over stock 3.0 ECU timing with a VQ35.
And we have 94 Octane readily available 'round here...
Originally Posted by JClaw
Even the JWT ECU doesn't run as much timing as a stock 2k2 does.
and customs are 
I have NO doubt that the car would be faster with your ECU, especially if the track was hot and soaked with VHT (that means 1.75-1.80 60 foots with slicks).
But yeah I'm a crazy canuck...
A little slice-of-life...
Last September me and Jime (nice guy by the way) met at a Quebec-vs-Ontario event at a local dragstrip of mine.
Towards the end of qualification he offered to temporarily install his OBDII scanner in my car for a run to see what I'm reading for timing during the run (Also, interestingly, my idle is actually 1334-1340 rpms based on his scanner, even though it appears to be somewhere between 1400 and 1500 on the actual tach).
Anywho, unless it's the crack, I remember the scanner varying a lot between 13 and 23 degrees during the run (hard to say really, when you have to shift 3 times during the run).
On that day the car was particularly slow, trapping around 100 mph. On the very next day I realized my knock sensor bolt was alarmingly loose and tightened it good.
The trap speeds were hovering between 103.8 and 105.3 all Sunday long, vs the constant 99-100 mph traps from Saturday.
True story. And I have NO idea what to make of it.
But yeah I'm a crazy canuck...
Originally Posted by nismology
That's a rumor that i may have had a hand in spreading. Jime has has logged his timing at WOT in his A33B and the his numbers were similar (~17-18* BTDC) to his stock A32 ECU. Not saying this is typical, but just throwing something out there.
Last September me and Jime (nice guy by the way) met at a Quebec-vs-Ontario event at a local dragstrip of mine.
Towards the end of qualification he offered to temporarily install his OBDII scanner in my car for a run to see what I'm reading for timing during the run (Also, interestingly, my idle is actually 1334-1340 rpms based on his scanner, even though it appears to be somewhere between 1400 and 1500 on the actual tach).
Anywho, unless it's the crack, I remember the scanner varying a lot between 13 and 23 degrees during the run (hard to say really, when you have to shift 3 times during the run).
On that day the car was particularly slow, trapping around 100 mph. On the very next day I realized my knock sensor bolt was alarmingly loose and tightened it good.
The trap speeds were hovering between 103.8 and 105.3 all Sunday long, vs the constant 99-100 mph traps from Saturday.
True story. And I have NO idea what to make of it.
Originally Posted by NmexMAX
How did he tune the A/F using JWT's static maps.. 
Just thought I'd offer geez..
Just thought I'd offer geez..
this might be off topic a little bit, but is it possible at all to adjust A/F with a JWT ecu?
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