CAT3

iTrader: (9)

The night was good weather and track prep was ****...always one or the other...
Congrats bro, nice clean runs. First run of the night, 12.49 @ 110, then a slippery take-off 12.65 @ 109. Checked a couple things out, like why its running ultra pig rich at 9:1 (need to tune SD and recal MAF in a big way). Made another round after he finally got his Pro-Gas membership, knocked off a 12.39 @ 110 followed by a 12.37 @ 110. All nice tire spinning (but kept her straight) runs, low load off the line, and quickly building 7 - 8lbs of boost! Only logged a couple spots hitting any KR, max of 1.8*, with Intake Temps exceeding 168* and timing at a lowly 18*. Get some race gas in there, and run a few more degree of timing, then mix 50/50 water/meth and should be in the 11's without a problem. Great runs Larry.

Combo is STOCK engine (getting some 918's to cure the valve float up top though) with stock exhaust back to the STS. Only mods are TR6 plugs, 16" MT DR's and a Fuddle 3800 2.5str Stall. Not even SFC, LCA's, or anything else. Now to start working suspension to get the 60' under a 1.79.

Pre-STS was 13.4 @ 100mph. So a decent second off and gain of 10mph.

Charlie

Assassin

iTrader: (3)

how did you guys fix the blowing coupler??... btw, nice runs on that track and weather conditions...

EPP

iTrader: (22)

I was wondering the same thing? Bob

Lrry93

iTrader: (2)

We welded beads on the edges of the pipes and used some t-clamps. Its been holding so far and Ive been getting on it pretty hard. I also have a bov on the way. Hopefully we will get some even better times tonight.

Blackbird

Yikes 18 degrees of timing with no IC at 8psi?

For 7-8 psi WITH an intercooler I run 13 degrees at tq peak and ramp up to 16. Anything more than that and I get knock. This is on 91, do you have 93?

Personally I think that is too much fuel and too much timing in that tune.

CAT3

iTrader: (9)

The timing starts around 14* goes to 18*, using meth however he needs the larger nozzle, no FMIC, 92 octane. I do agree, there is way too much fuel, way too much. And then I seen where his LTFT's are not locking in at 0 during the run, so need to work a couple things out.

Blackbird

oh ok so there is meth.

that makes me feel better.

yah keep cranking at the tune, you will be amazed at the difference it will make.

Lrry93

iTrader: (2)

Yep, meth is on, but only dropping temps from 180*+ to around 160*. Going to try mix water/meth. Hopefully will be able to find the larger meth nozzle. Next focus will be suspension, need some LCA's, one SFC (contacting UMI to see if I can get just the passenger side), a TA, and adjustable shocks and springs. Just got the front studs on this afternoon, so will finally run some skinnies. For tuning, need to take some time and dial in the VE, SD, MAF and hope the LTFTs fall in-line. Without them locking at Zero, sometimes the AFR is 9:1, 9.7:1, 10.5:1 all depends on where the trims are when it launches. We'll get that sorted out this week/next w/e. The RFL (Really ******* Loud) BOV should be in this week also. Slowly pecking away at it, just glad to see some results.

Thanks to all those for their help, input, even the critisism. Hoping for 11's before end of November.

Blackbird

have you considered adding a FMIC?

I haven't done a full 1/4 mile yet but highways blasts yield intake temps 2-3 degrees above ambient at worst.

the car will run soooooooo much better with iat's of 90 or less if you use the meth too vs 180.

EPP

iTrader: (22)

No kidding, we onl see 10 to 13 degrees above ambient even on our chassis dyno! I agree, you should get a large front mount intercooler, especially for your climate. Bob

CAT3

iTrader: (9)

Yes Larry is wanting to get a FMIC, but $1,000 for the one TRT has is a little pricey right now. Logged more runs tonight, as he almost had his 11's. 12.02 @ 111. I tried dropping timing, adding fuel and back n forth, but still seen as much as 3.2* of KR after the first run, so I am thinking its IAT related. First run, coming in, unloading quick and running netted 12.02 @ 111 with IAT at the line of 95* and mid track 135*, then later runs had IAT's at the line 122* mid track 165*, this is with using the small meth nozzle (still havent found the larger one).

Is there a good way to check the meth spray to ensure its working properly, or do those temps sound in-line with a non FMIC STS?

Lrry93

iTrader: (2)

I am going to get a FMIC but got a baby on the way and buying a house so money is a little tight. Maybe TRT can cut me a deal??? Here is my best run of the night

Reaction: .502, 60ft: 1.6, 1/8th: 7.6 @ 88.26, 1/4: 12.02 @ 111.46

THANKS TO CHARLIE FOR ALL THE TIME AND EFFORT ON GETTING THIS TUNE STRAIGHT.

Zombie

iTrader: (2)

any idea why the mph is falling off so bad after 1/8? I typically pick up 25-30 mph from 1/8 to the 1/4.

*Now that i'm thinking about it and you guys posted the IATs it must be timing related. I know that on my car going pulling 4 degrees of timing cost me 8 mph Car was sitting on the low octane table on night. Figured it out and get got it back to the high octane table. Went from trapping 116 to trapping 122. An intercooler and meth is definately the way to go. I can see 58 degree IATs in 100 degree ambient weather!

CAT3

iTrader: (9)

Zombie, I do have more advance pulled with IAT's, since I was nervous as hell the first time trying to tune a FI. I set it up to pull over 130*. Looking at the log, its pulling about 6* or so when its breathing hot air. Will be checking out the oil cap issue this afternoon. Thanks.

Charlie

buldogg

iTrader: (1)

Man my FMIC still stays around 90-100 no matter what temp it is outside. I still havent seen the 2-3 or 10-15 degree above ambient temps and I cant figure it out. i have settled with the 90 degrees then when the meth comes on it lowers it. before I was seeing the 160 but still not close to what everyone else is seeing with these FMIC

Assassin

iTrader: (3)

charlie, if you guys are still getting knock.. you can get knock w/ too low of timing as well as too high....., also go swing by a motorcyle shop that works on alot of harleys, they'll have these neat little finger drill bits for jets that you can use to drill out the jets for the meth system, they're numbered but in very small increments, anybody that does carbeurator tuneing will be able to help you out...

CAT3

iTrader: (9)

I'm even sure the meth is working, I'd like to hook it up to a WOT Switch, even though the STS switch and light says its working, I seen no temp differences.
KR was gone, and then back, might be our lovely track surface. Played with the timing in the cells where KR was, and little change. Run it with low IAT's no KR, let the IAT climb, and even with timing being pulled it see's KR.
Got the LTFTs stablized about 0 to -1.8 so happy there, took about an hour to lock them down, and then it blew the fricken Torque Converter! If its not one thing...

Blackbird

personally I don't recommend the TRT FMIC setup. it is flawed the way they route things and you wont see as low of IAT's as you could. I would fab it up myself or go with the Synergy STS FMIC. much better design.

what size nozzle are you using? a 15gph would be what I would use. I built an ATI kit with NO ic / alky only and my IATS were always sub 100 with the alky. I ran a 50/50 mix alky and water. your temps are wayyyyyyyyyyyyyyy to high. also make sure the pump is not turned down to low. the shurflow pump is adjustable. if you have a 0-100psi guage I would test and see what psi your pumping at. you may have the right size nozzle but the pump turned down too low.

I ran 10psi non intercooled with the ati and alky only. It can work and work well.

CAT3

iTrader: (9)

Adjustable pump....go figure, I knew I should have stuck around during the install of this damn Corky Car! Well Larry, get out there and turn it up, stop crying about it, I need IATs in the 90's or so.

Drew778

iTrader: (2)

Great info

Get on it guys