SBstar
15+ Year Contributor
- 3,038
- 121
- Jan 1, 2004
-
Jackson,
Michigan
I 'd when I read 10.8...seriously Nate?!?! That's all you're going to post, you have a freaking Iphone
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Ok, here we go with track report for 9/10/10.
13.797 @ 108.27 1.919 - shakedown run to see if new trans will shift.
- MBC was set too high...spiked to 34.7, which I think is the AEM 3.5bar limit.
- Boost falls to 21psi by 7000rpm
- 42* AIT at the line, 88* at trap
- The car is bucking all through first gear...rev limiter type.
- New "mystery box" trans is a little crunchy & I botch the 2-3 shift.
- DSMlink showing 369hp @5700rpm falling to about 325 at 7000rpm
- (HP calculations based on 2800lb total weight with driver)
12.959 @ 115.39 1.846
- Same rev limiter issue in first gear - basicly it never leaves the 2step.
- Turned the MBC down one turn: Spike to 32psi falling to 22psi.
- 58*F on line 79* at top 2nd, 90* top of 3rd, 100* at trap.
- Boost spike lasts for about 400rpm and .4seconds before settling down to about 26psi
- A/F tuning is still fat: 10.8 to 11.3 on gas scale
- Trans goes into every gear decently, I NLTS 3-4. ok...now I can get down to business.
11.597 @ 119.61 1.637 - First clean run with all 4 gears working. Still very easy slip launch.
- someone oiled the track down...huge line in lanes. Car was HOT!
- Coolant temp was 220* on line. AIT was 82* to 133* Ice was gone from IC tank before the run.
- Timing ramping from 12* to 17*
- Fixed first gear rev limit issue: clutch switch looked to be "bouncing" so I shut of NLTS.
11.228 @ 127.17 1.710 - turned on NOS single fogger nitrous kit.
- Spray is jetted .037/.022 - std gasoline jets for 50hp shot. Bottle press was 700psi.
- Nitrous set via DSMlink to activate at 45mph, with 7000rpm and 3.0load cut. Spray was on/off/on/off a few times due to limits
- AIT: 55*F to 111*F - one bag of ice.
- DSMlink showing about 435hp @ 600rpm in 3rd
- Boost curve seems to be unchanged with nitrous on
- A/F is still very rich: 10.8 to 11.4AF (even with nitrous system jetted for gasoline no ethanol!)
10.800 @ 129.84 1.594 ( 4.581 330' - 6.985 @ 100.43 1/8 - 9.055 1k')
- Added 2 bags of ice to IC. 48*F line - 101*F trap
- Turned mph activation down to 30mph. nitrous kicks on in 1st gear, but still is shutting off during boost spike and top of each gear over 7k rpm.
- Added about 1* timing overall. A/F still fat.
- Bottle pressure down to 650psi
- Launched at 5000rpm at about 14psi. decent but nothing spectacular.
- lifted all gear changes, but the trans seems to be shifting decent now.
My next move was to up the load and rev limits for the nitrous to 7700 and 3.5load so that it stays on for the whole gear. I'd say on the last run the nitrous was off for over a second of WOT time due to the boost/rpm limits being set too conservative. I had also added another 2* of timing, took out 4* fuel, and raised the main rev limit to 8000 and upped the 2step to 5500rpm in hopes of cracking 130+ and a mid 10. Unfortunately, another car oiled down the track at 9:45 and they just closed for the night, so I never got to make the last run with these changes.
Next time out:
- Bottle heater will be hooked up: 30% more nitrous power
- Up the jetting in the nitrous kit to 75 or 100hp shot for a bug jump in mph.
- Weld the center diff & actually try to get a good 60' next time.
- figure out clutch switch so I can NLTS all gears
- change theremostat and maybe add a fan to help staging lane temps.
- Hopefully see 135 to 140mph and a low 10.
So I'm pretty happy with a 10 second slip this early in the testing phase. I think the car should likely be able to go a real low 11 without the nitrous, but Im not really going to bother with that. I had always envisioned the car as a nitrous setup and once it ran clean for a single pass without it (the 11.5 @ 119), I went directly into figuring out the nitrous.
Cheater juice is for ####y's, Nate, and honestly, most people don't respect times as much as when it is not being used. E85 evoIII 16g cars are going in the upper 120's with more weight than your racecar on boost alone. Get a good manifold(intake and exhaust) on that ####er and tune the snot out of it.
Phil: honestly, Im not planning to make any more passes "all turbo" at all. From here out, my goal is to see a 9.999 and the only route to that is going to be heavily reliant on the bottle. Next time out at the track, my plan is to run between double and triple the amount of nitrous. On a 100+shot, I don't think 140mph is out of the question.
It will be kinda funny if by the end of the season this car actually only mades one single mediocre pass without nitrous and that pass was actually pretty weak all together (on tune/conditions/driving).
Cross your fingers for stock shortblock & stock trans!
I respectfully disagree. I didn't build the car to make everyone else happy, I built the car to go as fast as I can on the budget I have. (just like I'v built every other car). I'd rather try to run a 9 with nitrous. And I'd like to take the 16g record away from Bucci (which is also a nitrous car)
I went 119 on a wimpy launch, on the FIRST PASS without a mechanical issue with the tune barely "ballpark" and the engine and intercooler stupid hot. I have no doubt in my mind I could get this car to run nearly 130 on the motor alone once it's tuned, setup, and driven to potential. But I have pretty much no interest in doing so until I see a 9 with the bottle.
Well, Im sure there will come a time when the bottle pressure is just too low and Ill be forced to shut it off and run the car on boost alone
Im itching to get to Etown where there is a scale so I can get a real # for weight. The complete weight should be somewhere between 2700 and 2800. Of course, I'd love to see 200lb come off that # over this winter. (money and effort dependent)
I think I'm gonna go again wednesday, with my slicks at my disposal.
After doing some number crunching;
Last week the car was falling on it's face in 3rd and forth.
The car went high 97s-to 98 MPH in the eighth. Best mph so far. 122 up top. 24 mph in the backhalf. Obviously falling on its face.
In Ohio, the car was going mid 96's to mid 127s. so figure 30-31 up top.
Comparing to when I went from streets to slicks on my first time out, the slicks where good for around 1mph in both the 1/8th and quarter. that day it was going 95-96 on the streets, mid 97;s on the slicks all day. that day was around 27-28 up top.
Figure first pass or 2 will be on streets to see if the traps there. If all is well I'll toss the slicks on.
Warmer plugs seemed to fix it. I'm going to mess with it a little bit more, but this looks like the car could do right around 129-130 assuming the car picks up 30mph up top again... and 30* colder intake temps may help out a little bit too. I'm kind of excited , but this assumes the car is still happy. It did feel VERY strong on the street tonight. drifting to the side in 1st and 2nd gear is really fun.
Cheater juice is for ####y's, Nate, and honestly, most people don't respect times as much as when it is not being used. E85 evoIII 16g cars are going in the upper 120's with more weight than your racecar on boost alone. Get a good manifold(intake and exhaust) on that ####er and tune the snot out of it.
phil: Honestly, im not planning to make any more passes "all turbo" at all. From here out, my goal is to see a 9.999 and the only route to that is going to be heavily reliant on the bottle. Next time out at the track, my plan is to run between double and triple the amount of nitrous. On a 100+shot, i don't think 140mph is out of the question.
It will be kinda funny if by the end of the season this car actually only mades one single mediocre pass without nitrous and that pass was actually pretty weak all together (on tune/conditions/driving).
Cross your fingers for stock shortblock & stock trans!
im that guy from shootout that ran the 10.9s...
sorry for just now seeing this threat
car is fully streetable
i normally drive a hour and a half each way to one of the two local tracks
would love to drive it to shootout and back one of these years but i keep getting a sweet deal from my boss with an enclosed trailer
also shootout was the first time out with my cars current setup, thats why i had a few crappy passes then finally got my head out of my butt and ran a good pass, 12.2@127- 10.97@129 haha
i have to say i was totally sleeping at the line in the semi final too