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Hey guys I have an r33 s2 with fmic, turbo back zorst, upgraded fuel pump, boost controller and a remap ecu.

I was watching my consult readings and on 10 psi foot down I get the following at around 7000rpms Timing at 53' btdc, injectors duty 93% afm 5.115v. are any of these reading high for such little boost? I didn't think the injectors were getting pushed so hard on 10psi!

Cheers

Russ

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I have cleaned afm and replaced filter like 1-2000ks ago so maybe the injectors need a check. I just thought I'd have more room to move on the boost side of things.

Also how is the timing does that look right.

Edited by RPR33

well the injectors arent even 100% yet, and then once they are you still need to make a bit more power to get the rich AFR up to a leaner/more dangerous level...so i wouldnt be too worried about it, of course a dyno, and further datalogging would help if you are concerned.

but AFM might be more of a worry given its closer to limit...do you then get fuel cut etc? i dont know what happens when u max out AFM.

also are these peak values? if so then they didnt all happen at same time...because no way ur running 50deg BTDC at full boost!

id be trying to use a stock ecu and seeing what it reads and then another afm, as yeah, i just had a look and my afm isnt that high on a r33 turbo on a bar on a rb20, and if thats lower, then maybee ure ecu is tuned stupidly or the afm is faulty and thats whats casuing the massive afm duty cycle

well the injectors arent even 100% yet, and then once they are you still need to make a bit more power to get the rich AFR up to a leaner/more dangerous level...so i wouldnt be too worried about it, of course a dyno, and further datalogging would help if you are concerned.

but AFM might be more of a worry given its closer to limit...do you then get fuel cut etc? i dont know what happens when u max out AFM.

also are these peak values? if so then they didnt all happen at same time...because no way ur running 50deg BTDC at full boost!

Hey mate I don't ever get fuel cut I think it has been removed eg: when I had my fmic installed the guy who hooked it up did not connect anything back into the actuactor, so I was hitting like 15-17psi (without knowing it) and no problems untill it shot off a cooler pipe!!!

I was funny the first time it boosted I was like wow that cooler makes it go heaps harder.... thinking I was still on 7psi haha

and yes they are peak values.

Russ

327.68 volts as far as consult data stream is concerned...but the AFM's limit itself - not sure...id have thought 5 or 5.2V

ecutalk will clamp AFM at 9.9 if it somehow reported higher

it may be the case that more air than whenever u hit max AFM volts is going in, but the afm keeps reading 5.1 so eventually the mixture may lean out. need to get on a dyno to confirm

yeh thats my thoughts 5.115 is max so anything above that will still read as 5.115v. she's rich as on the dyno running 12-13psi, also my timing was at 20btdc at full boost

I guess I just need an ecu upgrade or a remap.

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