Took my car to the dyno today to do some tuning finally. let me know what you think and predictions on how long it will last heres the details.

bone stock internal JDM GSR (never even had the VC off)
AEBS IM
topmount/3" open DP
T3/T4 baller bearing 50 trim .63/.60
Tial 38mm
Precision 680's
some piece of **** FMIC i cut up and threw together
greddy type s (hate the F&TFness of it)
3" coldside/2.5"hotside charge pipes
Tuned with crome on VP C16

dyno vid: shitty 3rd gear rip vid: new highway vid:




Modified by CoreyR at 8:27 PM 6/24/2007

 

I think whoever took those chunty videos needs to be reminded to put the camera on the higher quality setting.

 

Well if your AFRs keep tipping into the high 12s and low 13s under full boost that car won't last long at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Well if your AFRs keep tipping into the high 12s and low 13s under full boost that car won't last long at all.</TD></TR></TABLE>

Damn, didn't know that. I guess it's a good thing they don't.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Well if your AFRs keep tipping into the high 12s and low 13s under full boost that car won't last long at all.</TD></TR></TABLE>

is that a joke?

 

Please post more pictures of the car. I want to see how you ran your CP and how you mounted your IC. thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CoreyR &raquo;</TD></TR><TR><TD CLASS="quote">

is that a joke? </TD></TR></TABLE>

no its not... but it wont be a problem either since you will be most of the time over 5k and u running c-16 gas plus does spike seem more to be wide band error reading than a real one... anyways u should try to clean that up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chris_tune &raquo;</TD></TR><TR><TD CLASS="quote">

no its not... but it wont be a problem either since you will be most of the time over 5k and u running c-16 gas plus does spike seem more to be wide band error reading than a real one... anyways u should try to clean that up</TD></TR></TABLE>

read the chart. it never went over 12.7 AFR and that was before boost. it spikes at vtec crossover and then drops into the mid / low 11's. i cant get the spike to go away so it will stay, not gonna hurt anything at 12.6:1 before its in power especially on 116.

 

the engine is almost at full boost when that happens... heck yer tq curve btw when that happens there are a few tunning solutions to make it go away

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CoreyR &raquo;</TD></TR><TR><TD CLASS="quote">

read the chart. it never went over 12.7 AFR and that was before boost. it spikes at vtec crossover and then drops into the mid / low 11's. i cant get the spike to go away so it will stay, not gonna hurt anything at 12.6:1 before its in power especially on 116.</TD></TR></TABLE>

Try disabling VTEC, tuning for a solid AFR through boost, then setting VTEC really low and doing the same thing. Should smooth out your lean spike at VTEC engagement.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AWDstylez &raquo;</TD></TR><TR><TD CLASS="quote">

Damn, didn't know that. I guess it's a good thing they don't. </TD></TR></TABLE>

Yes, CLEARLY there is absolutely no spike in AFRs at 5200 rpms and 10psi in the dynograph that he posted.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chris_tune &raquo;</TD></TR><TR><TD CLASS="quote">the engine is almost at full boost when that happens... heck yer tq curve btw when that happens there are a few tunning solutions to make it go away </TD></TR></TABLE>

dont hold out then, PM me some advice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">

Try disabling VTEC, tuning for a solid AFR through boost, then setting VTEC really low and doing the same thing. Should smooth out your lean spike at VTEC engagement.
</TD></TR></TABLE>

you can try that... if its still bothering with that send me an email...

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Well if your AFRs keep tipping into the high 12s and low 13s under full boost that car won't last long at all.</TD></TR></TABLE>

yeah but compare it against the boost plot - he is only making like 5 psi at that point (except for the vtec leanout)

 

Nice stuff bro....bump for another street vid....street pulls are the best. Get to work man...need another vid

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">

yeah but compare it against the boost plot - he is only making like 5 psi at that point (except for the vtec leanout)</TD></TR></TABLE>

Exactly. No where on that chart does it hit anywhere near "low 13's" and if you looked at the final tuned run (blue), the vtec spike is more like a slight hump that barely cracks low 12's. Granted, it'd be nice to tune it out, but let me know when a 12.2 for 1/10th of a second at low rpm and only 10psi on 116 octane really matters.

 

Anyone have any insight on those torque numbers? Are they a bit low, or is that about right? More insight from experienced tuners would be cool

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AWDstylez &raquo;</TD></TR><TR><TD CLASS="quote">

Exactly. No where on that chart does it hit anywhere near "low 13's" and if you looked at the final tuned run (blue), the vtec spike is more like a slight hump that barely cracks low 12's. Granted, it'd be nice to tune it out, but let me know when a 12.2 for 1/10th of a second at low rpm and only 10psi on 116 octane really matters. </TD></TR></TABLE>

Gah, SON OF A BITCH! I've been looking at red this whole time, didn't even notice that blue was the final run. Sorry, my mistake.

I had the same issues at VTEC engagement, lean spike, what I said above fixed it for me. You may also want to look at your low cam timing in boost as you're getting a pretty decent torque jump with that VTEC engagement too.

Car makes great power though, and it looks like it will keep going if you wanted to build the head a bit and rev it higher.


Modified by SovXietday at 12:59 PM 6/20/2007

 

Yeah, it's the interpolation of values on the high and low maps at the crossover point that can cause momentary leanout.

Tuning the non vtec map, then the vtec map with the crossover low is the ideal way to find the optimum vtec crossover point.

 

Hey car looks great. WHat top mount are you running?

Thanks

Kevron

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KevronsEG &raquo;</TD></TR><TR><TD CLASS="quote">Hey car looks great. WHat top mount are you running?

Thanks

Kevron</TD></TR></TABLE>

thanks, i built everything on the car myself.

going out to take some ripper vids now. should have some fresh ones up tonight.

 

nice setup. but u can lower vtec just a bit to get a slightly better power band. looks like that motor wants to rev to 9K! built the block and head!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CoreyR &raquo;</TD></TR><TR><TD CLASS="quote">
going out to take some ripper vids now. should have some fresh ones up tonight.</TD></TR></TABLE>

DAMN RIGHT!!! For once I asked for more street vids and someone actually went and made more!!!!! POST THEM IMMEDIATELY...

 

Where's my vid's?? I been waiting...what the hell happened?

 

ill try for some better ones tommorrow night. these came out shitty. my buddy kept saying stop short shifting and i was too exited/nervous to realize i was shifting at like 7K except the last one i ripped it hard but he wasnt recording. gotta get some race gas im on 1/4 tank and this thing ******* guzzles. gotta do some part throttle tuning soon.

this thing is fun as hell though, cant wait to get some tire and get traction before 4th