Project Black Golfball-plans for 2008 Options

[ncgalant]

It look like you've picked up almost 1mph over your last chip.  I'd be interested to see what your actual A/F is after you get the bugs worked out of the sensor.  We may need to bump the 1600hz+ multiplier up another notch.

Hey NC, up for burning another chip?? The only real knock I'm seeing is coming off the stutter. Top end is clean. Maybe some more timing?

I had the MAFT set for +15 so I can still lean it out some more to get to 12.5 A/F.

It's amazing how tuning can have such a big effect...with NC making the big changes and me making small adjustment at the track, it justs make more power! Thanks Nathan!

more timing it is I was hoping you would say that. I'm thinking another 3 -4 degrees should be the magic happy point, but I'm no expert when it comes to race gas.

Have you thought about using water injection also? I'm wondering what ice water injection + race gas would do for your setup. If we could pull that 200 degree intake charge down to 100 or so that would be roughly a 10% power increase.

[JMoushon]

The combination of a2w i/c and propane on my FWD beat any knock easily... just a thought.

[black92_tsi_awd]

NC, let me know when you want to get together.

I've looked into water injection before, kind of costly ($200-300) but relatively pain free for semi daily driving. Just fill the tank...

A2W intercooler sounds like a good idea especially on a hot day iat the track if it had an ice resouvoir. Jmoushon, got any pictures of the setup you ran? I don't know if the additonal plumbing would be worth it. I assume propane is similiar to running nitrous?

[ncgalant]

I can do it later this week. a/w isn't the best of setups to run in something you want to run on the street, but for a track car it can mean HUGE gains. Water injection has the potential to add 15-25 horses if you use ice water. How bad are you heatsoaking the IC during your passes?

[JMoushon]

My a2w was a track-only set-up. It was functional on the street, but it lacked a heat exchanger for the sump, which made it heat-soak easily. With that said, the plumbing is simple, and it makes the i/c piping as short as it can possibly be. I can see if I have any old pics of it... just for reference, it sat exactly where the uicp usually does, with the battery relocated for clearance. A street-worthy heat exchanger would be very easy to plumb in.

Propane is similar in application to nitrous, but functionally opposite. Whereas n2o is an oxidizer, thus building power, propane is a high-octane cooling fuel, limiting knock and allowing for more boost with less knock. I had mine set-up on an adjustable Hobb's switch, which activated the propane injection at 20psi. I was able to run a full 30psi with <7 counts of knock at the top of fourth. The original tune is tough to nail down, but the results were worth it.

[black92_tsi_awd]

The Supra side mount stays pretty cool, I don't think I have any heat soak issues. When I'm bracket racing I have at least an hour between runs so everything cools down pretty nicely. In the heat of the summer, the IC gets warm if I do back o back runs.

[black92_tsi_awd]

Heading back to the track this Friday with the group from work.

Probably won't do anything spectacular as far as a new best. Hopefully I'll get some runs in before I put the wife in the car. I'd like here to get her in the 14's at 100+

[black92_tsi_awd]

Short version update...have to sit and wade through my slips and the logs to figure out the problem.

The chip with the higher timing (20-21deg and ran 12.37 prviously) had crazy knock in all gears. Swapped in the previous chip and still has some knock in second and third....

Good news is the wife almost got in the 13's!! She got 4 good runs in with a best of 14.001@105 Her last run, she actually had the motor up around 4000 when she launched, but then she took too long getting in second.

I think the trans and/or clutch is hurt. Gears bang going into first or reverse and third was feeling a little iffy...hopefully it's got some left in it for Vicary day

[black92_tsi_awd]

Drained some trans fluid....looked like milky capachino. Changing it before Vicary day.


I'm thinking of trying a 7cm exhaust housing in addition to cams to get some more 14b HP. The 7cm housing would give lower backpressure in the upper rpm range where the cams would be make power. The Mitsu 16g and 20g housing are 7cm correct?

[black92_tsi_awd]

Vicary report

Ran pretty good...right up to the point where my rear caliper locked up! Luckily Darryl and Susan where there to give me a ride home. I'll head back in the morning to fix her.

Best run was a 12.40 @ 109.X. The race gas chip was back in and the car was running pretty good. I was working up on increasing the boost and leaning her out, I guess I'll have to wait until next year to see how fast she would have gone.

[spyonu2007]

Man... that totally sucks about breaking down. I have seen a handful of dsm rear calipers lock solid, stuff happens. Ive been able to free them up with a big clamp, but when it comes to breaking... Your best bet is to swap out for new parts. Don't leave it to chance.

[awd4kicks]

Wow, I've been so wrapped-up in my own crap that I didn't even realize it was time for Vicary Day.

Another 12.4 is awesome Chris.

How many runs did you get in before the caliper problem?

[black92_tsi_awd]

I got 4 runs in:
12.862 @ 108.45 in the street chip
12.533 @ 109.09 on the race gas chip
13.1 @ 106.1 Bad Run slipped the clutch REAL BAD

Last run where it broke
R/T - .396
60' - 1.700
330 - 5.087
1/8 - 7.907
MPH - 86.36
1000 - 10.354
1/4 - 12.415
MPH - 109.22

I got her home yesterday afternoon. Picked up a new caliper from Advance and swapped it at the track. I'll be replacing the left side also. Nice brake kit from advance. All new bolts, sliders and brake pad clips are included.

[awd4kicks]

How much was the caliper kit? I need to do the same thing.

[black92_tsi_awd]

I think it was $72 plus 35 for the core. they have to order it.

[black92_tsi_awd]

Sweet excess!!

Twin Disk

[black92_tsi_awd]

This guys just went 11.5 @ 118 on the 14b

Car Info

Car weight 2800 with driver, he runs a 1.6l head...have to figure that out.
Link to DSM Tuners Thread

Something to shoot for!

[awd4kicks]

Very nice set-up. He's got a lot of mph coming out of that 14b. It's intersting how he went from stock injectors to 1000's. I like how he seems to have done most of it himself in true DSM fashion.

You can do it Chris.I'm actually glad to see that you can get 1.5's and 1.6 60 ft times on drag radials. If I kept the car that would be one of my next additions.

[black92_tsi_awd]

Hey kicks...it's not too late to put some drag radials on! Unless you sold the car in the last couple of weeks....

Got me a good deal on a 40m Tial BOV on ebay. I can FINALLY get rid of my leaky stock bovs.

I'm going to make me some aluminum intercooler piping since I have to redo the piping to fit it. Any good source of 2-1/2" alumium piping around here?

[93dsmowner]

http://www.velocityair.cc/25alutubing.htm

I don't know of any local placed with aluminum.