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EVO X MR w/ FP Red 12.5 at 112 mph

11K views 43 replies 20 participants last post by  KozmicMotorsports  
#1 ·
Ran my car for the first time at the 1/4 mile drag strip last night. Best pass was my 1st one which yielded a 12.5 at 112 mph with a 2.0 60 ft. Setup is FP Red at 25 psi on 93 octane and around 420 whp.

Every other run was worse as the car was a bitch on the 1-2 shift and hit the rev limiter which would bog the car down after it got in 2nd gear. The SST 1st gear TPS limiter is tweaked too. Usually has no problem on the street but I think the extra grip at the track makes it tougher to get into 2nd gear.

I used S-Sport/Snow mode with ASC off and would just repeatedly rev it up while on the brake and then release around 4000+ rpms. This is the only way I can launch decently without getting the overheat/slow down message. Also was shifting manually as Auto isn't consistent enough.

Overall was disappointed in the poor results but I kind of expected launch/shifting issues to exist too. I hope someone cracks the TCU someday, optimizes the over-sensitivity and helps us SST guys yield better launches!

Video and timeslip below.

http://youtu.be/Cs2vwjsjC9k

 
#9 ·
It is certainly different with the extra weight, but the engine can make good power even with the stock turbo. I'm sure the MR trans changes stuff a lot, but 420hp should fly. My car ran 11s on the stock turbo with just an exhaust and tune. I did have to run good gas...I only went 12.2-12.4 on pump gas, and I was 3710 lbs with me in it. I think the X market has a lot more guys buying generic tunes and just generally naive in some regards. It was really easy with my AP to have 2 tunes for 93 and one for race gas. Why lean hard on the engine on pump when shit is that easy to change.
 
#10 ·
My cousin's X-SE ran a 12.4 with stock turbo, clutches, cams on pump gas. Just basic boltons. Tuned by AMS.
 
#14 ·
Where did you have your car tuned? Have you done anything for the trans? Clutches and/or cooler? I'm in Asheville, but I go to Charlotte at least once a month. I'd love to check out your car sometime.

Chris

Ran my car for the first time at the 1/4 mile drag strip last night. Best pass was my 1st one which yielded a 12.5 at 112 mph with a 2.0 60 ft. Setup is FP Red at 25 psi on 93 octane and around 420 whp.

Every other run was worse as the car was a bitch on the 1-2 shift and hit the rev limiter which would bog the car down after it got in 2nd gear. The SST 1st gear TPS limiter is tweaked too. Usually has no problem on the street but I think the extra grip at the track makes it tougher to get into 2nd gear.

I used S-Sport/Snow mode with ASC off and would just repeatedly rev it up while on the brake and then release around 4000+ rpms. This is the only way I can launch decently without getting the overheat/slow down message. Also was shifting manually as Auto isn't consistent enough.

Overall was disappointed in the poor results but I kind of expected launch/shifting issues to exist too. I hope someone cracks the TCU someday, optimizes the over-sensitivity and helps us SST guys yield better launches!

Video and timeslip below.

http://youtu.be/Cs2vwjsjC9k

View attachment 128721
 
#15 ·
Where did you have your car tuned? Have you done anything for the trans? Clutches and/or cooler? I'm in Asheville, but I go to Charlotte at least once a month. I'd love to check out your car sometime.
Motion Lab Tuning. Trans, fluid and cooler is all stock. Works great for my type of driving. Upgrading the cooler is only needed for road racing guys. Hit me up anytime.
 
#16 ·
John Torres runs the same times in his full weight MR with a OTS Cobb tune, bolt ons and stock turbo. I think you have a valid performance concern.

Dr.Chris, you're in Asheville? I live in Sylva and work in Asheville. Hit me up sometime!
 
#17 ·
John Torres runs the same times in his full weight MR with a OTS Cobb tune, bolt ons and stock turbo. I think you have a valid performance concern.
Link me. I don't doubt someone can yield the same time with less power and a badass launch (like 1.7-1.8 60ft). I dynoed my car again 2 days before going to the drag strip and power was right on par, so it's performing power wise, just didn't get down the track too well.
 
#20 · (Edited)
You have the MPH to run a lower 12, just need to work on the first 330 feet for it to ET well.

You need to figure out how to get to there first, and don't worry about your power.

When I first started tuning my car I ran 12.49@108 and my 330 was a 5.09. That is what you need to work on. Your 330 is killing you.

Just for comparison's sake here were my incrementals at about your power level...but I had over 400 tq. The next pass I went to 5th and went 120mph and a little worse ET
60 - 1.800
330- 4.935
660 -7.544 @ 93.94
1000 - 9.799
1320 - 11.722@116.48
 
#22 · (Edited)
I think some of the mph loss was from me shifting early at 6000 rpms in 1st gear. Getting these SST cars to shift on the 1-2 isn't easy with some power. Anybody that doesn't have a higher powered MR wouldn't understand. Every remaining run bounced off the rev limiter, even if I shifted 500-750 rpms sooner.
 
#24 ·
I have a question for everyone that says the lost time for this car is to be made up in the first 300ft. Maybe it is, I'm just curious, trying to learn. Up until the 1/8th mile point I ran a better time but was already slacking in the MPH dept and by the 1/4 point I lost another .2/.3 seconds. I ran my 2010 SE with a stock turbo, stock exhaust etc. The car has a 2nd hand Ingen Upper IC Pipe, a 3 port, and a Moore Auto Tune to a best of 12.772 with a lot of heat soak due to screwing up the the first couple runs. Yes I know the MR is a bit heavier, but I took a car load of people to the track so I didn't take hardly any weight out of the car like I would normally do if I go by myself so maybe I was 100 lbs lighter. Since this race I have since upgraded the Fuel Relay and got a tighter fitting coupler for the UPIC. I did run the car in Auto Super Sport Mode, Trac Ctrl Off-Off, and in Gravel Mode. In my heart I know it is a bit faster albeit inconsistent having the human doing the shifting, still on the fence may try it next spring.
Image
 
#28 ·
Wow Nevermind - Don't Flatter yourself with a hijack. There has to be something of value first. There is nothing to be learned from this thread. You either got one heavy ass MR, or the Driver Mod was installed wrong. Nothing wrong with the tune.
 
#33 ·
Klattr -

Can you supply a dyno graph from your last pulls? It would be interesting to see where exactly you're making the power.

No one's beating you up - but your times are waaaay slower than they should be. It's fact that a number of MR guys on stock turbos with a decent tune are running just about the same times you are. I haven't read through the entire thread in a few days and I'm not sure if you made this note - but what elevation are you running at?

Try doing a rev bounce type launch. No launch control and try to time it - that's what John Torres does. That said, you should be able to launch it hard with LC without too much trouble. There's a lady in Australia who has a gutted MR running a 5858 or 6262 (can't remember) and she launches with the factory LC HARD and bangs the shifts too. It shifts like crap as the SST isn't running quite right but she's able to run a 10.46 in it. Kozmic has trouble with the 1-2 shift in their car, but they are running 690whp. You really don't have that high of an hp car, low 12's with the right launch and shifting should be able to carry you to low 12's or high 11's.
 
#35 ·
I had the same issue, shifting from 1st-2nd. Even if I blipped the paddle at 6500rpm, it would still bounce of the rev limiter twice before shifting.

Luckily I have an awesome tuner nearby, TJ at Ziptie Dynowerks(UT_EvoX)
He said this is a common issue with the MR's. He tuned my SST entirely! Removed the 1st gear limiter, fixed the 1-2 shift issue, and a bunch of other TCU tweaks.

After my tune, I would bounce the limiter going into 2nd EVERY time! Now it shifts into 2nd no issues. Just saying...it's all in the SST tuning.
 
#36 ·
After my tune, I would bounce the limiter going into 2nd EVERY time! Now it shifts into 2nd no issues. Just saying...it's all in the SST tuning.
My SST tables are "tuned" via Kozmic and Motion Lab Tuning. The 1st gear limiter is set to 100% TPS except for last 2 values where it linearly scales back.

I didn't have the problem with the 1-2 shift when I was < 300 whp either. It was only after getting to the 420 whp level that it started to occur. The problem mostly exists in manual mode. Seems to complete the 1-2 shift in Auto mode.
 
#38 ·
All I gotta say is I wanna see time slips on the guy who said he ran 11s on stock turbo. I'm calling bs on that!
 
#40 ·
It wasn't even race gas haha. It was 100 octane, which is still less octane than e85. It was HiBoost and his slips ARE posted
 
#41 ·
At 373whp on a mustang dyno my wife ran a 12.5 but trapped a 117mph. Clutches were slipping with that. Was suppose to run today to check the new tune + clutches and it rained out.

OP Nice run the SST starts acting a fool when you get good power in 1st gear. By looking at my previous tune by Kozmics it looks like he dialed down the boost in 1st to get it to shift. We upgraded the clutches last week with a fresh tune and it nabbed the gears hard. She was hitting the paddles at like 6k rpm and it would sometimes shift before it banged the rev limiter at 7800. New clutches give a almost instant shift and it will also shift in auto with a launch. Clutches may be something to look at in the future if you are going to hit the drag strip a lot.
 
#42 · (Edited)
Also your 60' is way high, for every 0.10 you get that down you will pick up 0.20 in the 1/4 typically. Are you getting a lot of wheel hop on launch?
 
#43 ·
I ran a 12.5 @110.61 in my X GSR with just bolt ons making 347 whp just for reference. Granted its a GSR, I expected better from the MR. I had a 1.85 60' time.