Search found 69 matches

by Jason Rhoades
Thu Jun 28, 2007 9:03 pm
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

I've got to do something about that hood - it's even uglier in person. I had to make some big cuts in it because it hits a bunch of stuff in the engine bay, it now looks like a dog chewed at it...
by Jason Rhoades
Thu Jun 28, 2007 10:00 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

I did run at Qualcomm this past Sunday... :)
Image[/img]
by Jason Rhoades
Mon Jun 18, 2007 9:12 pm
Forum: Road Racing/Autocross/Drifting
Topic: Anyone autox with big turbos?
Replies: 11
Views: 4411

The twin-scroll GT3071R is pretty good with a KA for autocross.
http://www.jrho.com/sm240/jrhos.wmv

To keep a GT35 spinning you'd need a bunch more displacement or a bunch more revs than a regular KA, at least for autocross. It'd probably work great at the track though, especially twin-scroll'd.
by Jason Rhoades
Mon Jun 11, 2007 1:03 pm
Forum: KA-T Tech. Basic
Topic: BC Stroker Kit??
Replies: 22
Views: 3401

I emailed them a bit ago for info. I think the kit will be pretty good for those of us looking for more bottom-end and midrange. I just don't want to be the guinea pig... :oops: From: "Dustin Spencer" <dustin@briancrower.com> Add to Address Book Add Mobile Alert To: "'Jason Rhoades'&q...
by Jason Rhoades
Mon Jun 04, 2007 1:10 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Here's another one from today, during the daytime:
http://www.youtube.com/watch?v=u7C6VhLZ1pA
by Jason Rhoades
Sun Jun 03, 2007 12:03 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

http://youtube.com/watch?v=5dt2xCtHCbk

Video of a test run late today. Not a good example of driving as the course was dirty and the tires were cold. I hope to get some better stuff tomorrow.

Youtube really made this one look yucky, the 25MB one I uploaded looked great...
by Jason Rhoades
Thu May 31, 2007 9:55 am
Forum: KA-T Tech. Advanced
Topic: AEM guys what do you think of this?
Replies: 29
Views: 5277

That's funny, mine worked fine when warm, but wouldn't work when it was cold. :x
by Jason Rhoades
Wed May 30, 2007 1:03 pm
Forum: KA-T Tech. Advanced
Topic: AEM guys what do you think of this?
Replies: 29
Views: 5277

Thanks for the info Burke, I'll compare that to what I have and try that out. Which of the values you selected were different from the defaults, and how do you think that helped it to work better? Like, what do the SYNC IGNORE and SYNC EARLY things do?
by Jason Rhoades
Wed May 30, 2007 11:25 am
Forum: KA-T Tech. Advanced
Topic: AEM guys what do you think of this?
Replies: 29
Views: 5277

At first, things were fine with my car, then all of a sudden it wouldn't start with the same MX Sync Test value and it got all hokey when the car was cold. Swapped to a spare distributor, and things *seem* to be okay now, hopefully they stay that way, and it's not just the warmer weather. If somebod...
by Jason Rhoades
Tue May 29, 2007 12:56 pm
Forum: Road Racing/Autocross/Drifting
Topic: what tire size for 18x10 J+0 and 18x12 +13 ?
Replies: 3
Views: 2324

I run 18x11 up front with 285/30-18 and 18x12.5 in back with 315/30-18. It's a great setup for "grip" but might not be so good for drift. The width of the fronts might be a bit of an issue if you want to try drifting - you may find it difficult to get wheels that wide to turn to full lock ...
by Jason Rhoades
Tue May 29, 2007 11:18 am
Forum: KA-T Chat
Topic: Contemplating a turbo upgrade (changing out my GTIR turbo)
Replies: 9
Views: 2153

I made 391whp at 14psi with the twin-scroll GT3071R and a Full-Race manifold, stock internals. That was on a mix of 100/109, but I think you could probably do 350 on pump with 15psi.

The setup is a blast, full boost by 3500 and good top-end with peak hp around 6500.
by Jason Rhoades
Thu Apr 26, 2007 9:45 am
Forum: KA-T Tech. Advanced
Topic: More ignition problems? Built ka-t to the dyno!
Replies: 26
Views: 4759

oes, In order to start my car when cold, I have to set MX Sync test to 9 - and it sorta half-fires for a split second, and in that split second, I have to switch back to 8, at which point it mostly clears its throat and revs up. It continues missing though (stat sync being lost/found) until it's ful...
by Jason Rhoades
Wed Apr 25, 2007 11:37 am
Forum: KA-T Tech. Advanced
Topic: More ignition problems? Built ka-t to the dyno!
Replies: 26
Views: 4759

Seems like a lot of us are having issues with the stock CAS and the AEM EMS:
http://forum.aempower.com/forum/index.p ... 553.0.html
by Jason Rhoades
Wed Apr 11, 2007 2:30 pm
Forum: Road Racing/Autocross/Drifting
Topic: Coilover Preload and dampening
Replies: 13
Views: 8952

Preload is one of the tougher spring concepts to visualize. Above, a poster mentioned they had 1/2" of preload with an 8k front spring. 1kg/mm ~= 55lb/in, so 8kg/mm ~= 440lb/in. 1/2" of preload means that there is about 220 pounds of force working to compress the spring, before the coilove...
by Jason Rhoades
Wed Apr 11, 2007 1:22 pm
Forum: Road Racing/Autocross/Drifting
Topic: is abs really helpful.............
Replies: 7
Views: 3381

Yep, and if it notices the inside rear locking up, it'll kill all braking to the rear, so neither flat-spots, but that's not really an issue in a RWD car, especially with a decent diff.
by Jason Rhoades
Wed Apr 11, 2007 11:40 am
Forum: Road Racing/Autocross/Drifting
Topic: is abs really helpful.............
Replies: 7
Views: 3381

I think the S13's ABS system works very well in a racing situation when the rest of the braking system is functioning properly. When you're braking at the limits, unless you're going in a perfectly straight line, the lighter (inside) tire is going to want to lock up, and without ABS there's nothing ...
by Jason Rhoades
Thu Apr 05, 2007 8:49 am
Forum: KA-T Picture Threads
Topic: meanest streetlegal 240..period
Replies: 130
Views: 38340

wizard, it looks like you're running an electric water pump setup. Could you provide any details on what you had to do to get that to work?

Thanks! :)
by Jason Rhoades
Thu Mar 29, 2007 11:14 am
Forum: KA-T Tech. Advanced
Topic: gt3071r vs gt3076r and on which manifold?
Replies: 5
Views: 1609

For street, drift, or autocross, I'd recommend the twin-scroll .78 3071R. 250ft-lbs @3000, 400ft-lbs. @3700 and about 430whp at 20 pounds, with completely stock internals. For drag or track use, the GT35R would give a bit more top-end, with some impact to spool. I haven't seen a twin-scroll GT35R dy...
by Jason Rhoades
Thu Mar 29, 2007 8:28 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Ahh yes, you're right about the offset, but it's only a -8 then though. It's the rear LCA that interferes, and it interferes at all times, but moreso when the suspension is in the bump part of its travel. One of the goals in building a big-tired autocross car is to keep the rear of the car as narrow...
by Jason Rhoades
Wed Mar 28, 2007 1:17 pm
Forum: KA-T Tech. Advanced
Topic: BC stage 2 camshaft install
Replies: 17
Views: 6024

Are these the 264's or the 272's? Will be interesting to see the dyno, thanks.
by Jason Rhoades
Mon Mar 26, 2007 11:26 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

I have to run spacers on the front at the moment, about 20mm worth, so it's effectively a +32. The rear has about 20mm worth also, but the interference is with the chassis, not the spring. I had to notch my rear lower control arms to make them fit. I have some issues with the AEM EMS, I'll research ...
by Jason Rhoades
Tue Mar 20, 2007 5:47 pm
Forum: KA-T Picture Threads
Topic: *Updated* Post clean pics of your cars!
Replies: 1181
Views: 375888

Flares from raceonusa.com
Wheels are 18x11 front with 6" backspace, 285/30-18 Hoosier A6 tire
18x12.5 rear with 8" backspace, 315/30-18 tire
wheels are CCW Classics, as mentioned
by Jason Rhoades
Tue Mar 20, 2007 2:35 pm
Forum: KA-T Picture Threads
Topic: *Updated* Post clean pics of your cars!
Replies: 1181
Views: 375888

My car isn't quite "clean" yet, but it's getting there...
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by Jason Rhoades
Mon Mar 19, 2007 6:04 pm
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

The hood uses the stock latch also. The extra pins are really just to hold it down at the corners so it looks better. That I haven't gotten to the pass. side pin should be indication of how much I've been thrashing to get everything else done... :) The good news is that I FINALLY got the PS pump I n...
by Jason Rhoades
Mon Mar 19, 2007 9:54 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Didn't get to race this weekend, had some issues with the power steering system I couldn't resolve. Here are a couple pics of the car with its new shoes on...
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by Jason Rhoades
Thu Mar 15, 2007 10:58 pm
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Cory, I plan on running 20-21 pounds eventually, since that should put me in the sweet spot of the 3071R. I figure that'll be safe on 109, maybe with some C16 thrown in on hot days. I'll get some pics of the big tires on the car tomorrow, haven't put them back on the car yet. I hope they fit under t...
by Jason Rhoades
Thu Mar 15, 2007 12:31 am
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Well, managed to get the car ready today. Have 10 gallons of Motorsport 109, and 5 gallons of C16 at the ready. I couldn't believe what a HUGE difference the fuel pump relay trick made for my Walbro. Maybe my stock wiring was weak or something, but it completely changed the sound of my pump when the...
by Jason Rhoades
Tue Mar 13, 2007 11:40 pm
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

So the motor is mostly together now. Some of the latest stuff I've done (resistor box) was a bit rushed, trying to get ready for a race this weekend. Going to dyno on Thursday. Tomorrow gotta get the inner and outer fenders reattached, wire in the fuel pump relay, and the Crane CD box (dang that suc...
by Jason Rhoades
Tue Mar 13, 2007 9:24 pm
Forum: KA-T Tech. Basic
Topic: I am a turbo tard - BOV moves under vacuum at idle?
Replies: 2
Views: 927

I am a turbo tard - BOV moves under vacuum at idle?

So I finally got my car running today. I noticed that at idle, the BOV gets "sucked open". The vacuum line runs to the inside of the manifold. Is it normal for it to do this? I took the BOV (TiAl 50m) off at it took quite a bit of thumb pressure to unseat it and get it to open. I could com...
by Jason Rhoades
Fri Mar 09, 2007 4:56 pm
Forum: KA-T Picture Threads
Topic: J-Rho's KA-T
Replies: 107
Views: 36551

Ahhh, gotcha Ryan, that is pretty interesting actually, hadn't considered that approach. The blowdown sounds like something that would be good at lower rpm, but that you'd want to advance the cam a little bit once the exhaust pulses were doing "enough" to keep the turbine spinning the righ...