So Sam decides at 10 minutes to 9 that she NEEDS ice cream STAT. So I decide its a perfect chance to continue my attempted tuning.

We are rolling down hwy 16 when I spy a black Z28 in the right hand lane. I pull up next to him and downshift to third. JDM gears 3rd gear at ~70 = loud.

He punches it, I follow suit. He starts a fender ahead, and ends between a fender and half a car ahead of me. According to my spedo, it was 70-120.

We pulled over and BS'd a bit afterwards. He was cool. It was a 98 Z28, LS1. He had long tube headers, a programmer/tuner thingy, and a clutch that he told me about.

I was running -15% accross the board with 450cc injectors, mods in sig, and 13.8psi peak.

Feel free to talk amongst yourselves.

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What did the WB read?

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06 Blue EVO 9

I wasn't looking at WB; I was looking at the road. Sam said the NB's were .94-.98 for the most part tonight.

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I think there's a way to hook up your WB to one of the open ports by the battery so the logger can read it. I know Shiver has added a feature in the software for logging boost.

Forget the NB's (the ECU does). The only good they do for you now is tell you when the ECU is in open or closed loop. Tune for a consistant AF ratio on the WB display. There's still more power to be had.

yeah, get some 550s. then let her eat.

or was this still with the 9beasts?

This whole summer is going to be with 9Beasts. I am tapped out on cash; I still need $700-800 worth of emanage and associated crap. Being a college student rocks!

I'm going to talk to shiver tonight and see if there's anyway to get it to log WB on his logger.

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Let me know what you find out. I would like to use it on mine too.

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'94 vr4- Now with extra slowness

Shiver's logger can be used for WB02. You need to email him the AFR vs WB voltage chart for your WB and he sets it up in the software. You wire the WB output into the EGR circuit and thats how it gets to the logger.

In related news, my car is weaksauce. I managed some pathetic 12.7's and 12.8's today, only trapping 105-106mph. I've lost a considerable amount of power and 3mph since I: added lighter wheels, dsm intercoolers, 450cc injectors, hotwired stock pump, and jdm gears. I spent the day tuning it run after run and it seems to be running well, just not as powerful. I was hitting 14.6 psi peak with my high 12 nubsauce. I'm wondering what impact the jdm gears are having on my times now. I did find that running 3rd gear out was considerably faster than shifting to 4th.

The variables as far as I can tell are: Different gears, tune, powershifting (was on 12.5 run, not at all today) Any thoughts?

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I would just about always agree with that one.

Best,

SJ

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Racing is life. Everything else is just waiting.

http://umg.mn3s.org

http://ummo.boards.net

definite thoughts on the gearing is actually hurting you. But I can't talk about those to loud or 3si will hear me and start flaming.

also, what is your timing like? It should be more agressive if the 450s are tuned right. but if your running rich, then it will pull timing, and hurt your performance.

Also, DSM intercoolers will be a slightly larger volume, which could add to lag due to a 9b having to fill that extra volume with pressure. But you don't get any better top end. probably not that huge of a deal, but we are only talking a few tenths here, right?

I think there is definately still some room in my tune. I hope* to hook the wideband up to the logger this week if PLX responds to my email and I can get shiver to put a rush on hooking up the software.

The gears may/may not be hurting me, only one way to find out. I am in as good a position as any to goto the track and dyno, pull the trans, switch the gears, repeat. I need to get it tuned better than it currently is first.





Ver fer, hows saturday for you for a tuning day?

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Eric, the thing with the gears is, what is good for you will change depending on your power level. for 9bs, it may not be optimal, but for 650s it may be the best thing since sliced bread.

Don't go switching your gearing or anything drastic till you get that thing optimally tuned and setup. Make it as lean as possible without knock and as flat of an a/f curve as possible.

Once again, work on your 60ft times. IF traction is being a huge issue, slip the clutch more (I know, it's hard to do with a puck clutch). I told you over the phone I had to drop my rear tire pressure all the way down to 22psi and that helped my 60ft considerably. The track temps are still really cool too, so that's going to fight you.

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06 Blue EVO 9

A. CALMDOWN!

B. I was thinking of doing this comparison before experiencing the weaksauce in action via the vr-slow. I am going to continue to work on both the tune, and my novice launching ability.

C. Don't let a brother get lowballed by walek.

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Calm down?