My tuner is the best within 800 miles, he data logs and all that other good stuff. I know he knows what he is doing, so if he said it is safe I trust him. The closest dyno is a 4 hour drive for me and I don't see any real point in it.
He datalogged your car when he tuned it, or was it a tune emailed to you? When your car is trapping 10-15mph less than it should be that's a big reason to strap it to a dyno, or at least datalog and check the AFR/MAF counts/FPDC/IAT temps/etc.
____________________________________ Black 2003 Cobra
Posi Ported Blower, Dragon TB/Plenum, RR 2.65/Metco 4lb, Bassani Headers, Mac Prochamber, Borla Stingers, JLT RAI w/ 12" Filter, Compucar Wet Kit, SCT PRP.
New numbers one day.......
6.9 @102 Eaton
11.00 @ 127 Eaton
6.88 @ 104 Best 1/8...Ported Eaton/50 shot N2O
10.71 @ 133 Best 1/4...Ported Eaton/50 shot N2O
Could you tell me or show me where to hook my methanol into? I have read on here before that not too many people hook where mine is.
It needs to be plumbed after the blower in the lower intake. If you run it before the blower the cooling affect meth has will be negated by the blower heating the air up as it compresses.
He datalogged your car when he tuned it, or was it a tune emailed to you? When your car is trapping 10-15mph less than it should be that's a big reason to strap it to a dyno, or at least datalog and check the AFR/MAF counts/FPDC/IAT temps/etc.
He datalogged it while he tuned it. It is a custom tune. He checks all the AFR/MAF counts, not sure about the IAT. How much should a dyno session be $? Thanks for your input. Could you point me to a link on how to mount my methanol to the lower intake??
He datalogged it while he tuned it. It is a custom tune. He checks all the AFR/MAF counts, not sure about the IAT. How much should a dyno session be $? Thanks for your input. Could you point me to a link on how to mount my methanol to the lower intake??
A few runs on the dyno should run you $50-$75 tops. If you have the handheld tuner you can datalog and post up the results, from there we could see if there was anything standing out that might be wrong. There really aren't any threads that show positive results with Methanol on our cars, our blower/intercooling system really isn't designed for it. Here's a few threads that have some good info in them....
Damn if you guys are running that good with the Eaton what do you expect to see out of a Whipple. My friend in Amarillo has the 2.3l Whipple and he only sees 126mph. Hell maybe we just can't drive! Amarillo dragway is no where near a good track, but that shouldn't make that much of a difference. I don't know?
If a TS runs that high of mph's what should a Twin Turbo car be running. There are two twin turbo cars around here and one runs only 119 mph and 13.1 something, but he can not drive to save his life. The other one sees 137 mph and I know he can drive. So I am just asking for info. Not trying to start an argument, just want more info..
If a TS runs that high of mph's what should a Twin Turbo car be running. There are two twin turbo cars around here and one runs only 119 mph and 13.1 something, but he can not drive to save his life. The other one sees 137 mph and I know he can drive. So I am just asking for info. Not trying to start an argument, just want more info..
Uh.. HPP's TT setups on Torco trap 145+. Manny's car is even faster than that.
You haven't given all the information that is needed, but the important things are easy:
If you know the trap speed and the vehicle weight you can figure out what the car should run. In your case I don't know how much you weigh, but lets assume you had a decent amount of fuel in the car and you weigh 200# with no significant weight reduction. For a 113 trap your car should run around a 12.0x. Your 60' is decent for that heavy a car and setup, so the few tenths you lost are due primarily to driving and possibly some power loss at the big end, depending on what the various temperatures were, 11's are certainly possible. Knowing what your 1/8 time and MPH are, will tell you whether the heat played a part, but really improving your shifting will probably net 0.1-0.2 seconds in the 1/4.
All in all your car didn't run bad at all given the information you provided. What your car should or is putting down for power is something a dyno/tune will answer. With your mods I would expect a trap speed closer to 118-120, so it does appear you maybe missing some power, but then I don't know what tune you have, or how heat soaked the motor was.
All the other comments about what other ported eaton cars have done don't apply to you, since you don't even have good RWHP numbers, or an accurate idea of your total race weight. Ideally you'll want to know the UNCORRECTED RWHP for the day and time at the track, since you can correct the dyno numbers for the existing DA. The simpler approach is use previous trap speeds to see if you're making more or less power, if the ETs don't change significantly (provided you don't spin half way down the track, miss a shift etc.).
Get rid of the meth, I'm not going to go into it more than everyone else has, it's a crutch at best and not worth it for your application, i've seen people lose power with it. Tune it right and use the correct octane/plugs for the boost you're making. Good luck.
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11.16 @ DA 6000' Eaton only
10.65 @ DA 7876' Whipple
9.87 @ DA 7154' Whipple/N2O (1.36 60')
Last edited by ricksterman; 04-21-2009 at 01:14 AM.
You make some good points ricksterman. However, the biggest issue here is that his MPH is excesively low for what his horsepower levels should be with the mods he has on the Cobra.
One factor that is certainly affecting the 1/4 mile performance here is the fact that the elevation at Amarillo Speedway is 3,683 feet and with the weather conditions yesterday in the middle of the day, the Density Altitude was approximately 5,302 feet. These racing conditions would certainly negatively affect the numbers. But probably not to the extent that would explain the low power numbers. IMO, the setup needs to be thoroughly examined to find out why the car is not producing more power.
So you have a 2 step, what do you have done to your drive line? I have been thinking about pulling my blower off and sending it to you for your race port. I bought my car with the port already done and have no idea who did it. So there could be a lot left in there that you could take care of.
I have the completely stock transmission still. I know I am dealing with a time bomb, but when it breaks I will upgrade. I do have DSS level 5 half shafts, forgot to mention that in the OP.
That's the X-Cal's two step. Not the best by any means but it's free with the handheld. I've got ac427cobra's full bushing kit, some of the red pill, and level 5 axles. Then a Spec 3+ clutch.
Send your blower in and I'd be happy to upgrade it. It depends on how much time I have in it on the price. If they did a good job and you send in the case only then it could be $180. Or up to $250 with the case only.
Unless you grind gears your tranny will last a long , long time.
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Whipple @ 22lbs - JLT RAI - SCT Big Air 2,400 - Accufab SBTB - 60lb inj's - Single Modified FPDM - Twin GT pumps - Afco dual pass H/E - H&R Race springs - Stock Iso's - ac427cobra's bushing kit - LMM Air Bags in rear - High Boost Overlay - MGW Shifter - Fiore adjuster - Kooks 1 5/8 Lt's - Kooks o/r x-pipe - Borla Catback - Head cooling mod - SCT X-Cal - Canton Expansion Tank - Level 5's - Bogart D10's - 28" Hoosier QTP's - True Forged IC resevoir - TF Victory Wheels- Posi ported lower intake - Autometer Phantom Boost & Fuel pressure gages...
Posi Ported Eaton pushed this car into the 9's with no Nitrous! Current 1/4 mile Record Holder with a 9.94 @ 135mph and only Eaton in the 9's without Nitrous! Ever. http://www.svtperformance.com/forums...only-baby.html
Posi,
Just wondering if the Dragon Tb/P is better than the Accufab unit? Also are you selling Bogart race rims yet? If I miss a gear I normally just coast the rest of the way. I don't grind my gears very often at all. I have however been having trouble at the track with missing 4th, don't have a clue what my deal is. Do you know anything about the Diablo handheld tuners, I don't know if it has a 2step in it or not? What Psi are you leaving with? Thanks
Ironterp I completely agree, but without knowing the tune or conditions, he may very well be down 50+HP without something being damaged. I wish I could get 5000ft DA's.
abandan missing 3-4 is actually very common, you're pulling the shifter towards you instead of straight down.
As for two-steps (and limiters), I would avoid using the factory fuel-cut system (SCT, Diablo neutral rev limiter settings). Get a real 2-step it's more consistent.
Ironterp I completely agree, but without knowing the tune or conditions, he may very well be down 50+HP without something being damaged. I wish I could get 5000ft DA's.
abandan missing 3-4 is actually very common, you're pulling the shifter towards you instead of straight down.
As for two-steps (and limiters), I would avoid using the factory fuel-cut system (SCT, Diablo neutral rev limiter settings). Get a real 2-step it's more consistent.
Thanks, I was looking at the MSD 2step. What do you guys think?
Do most of you power shift or speed shift? What techniques do you use?
my current car isn't a good comparison. my first terminator, bone stock, down to paper air filter went 12.54 @ 114mph. that was with the stock tires as well.
you should be in the 11's easy. plenty have mentioned possible reasons for low ET.
I would also be launching at a higher rpm. while I probably have different size tires(28x16), they are the ET Streets and they are a great tire. I will be launching about 5700 the next time I am out. I just put 3.73's in as well. the way I look at it, if you aren't spinning, raise the launch rpm. it should drop your 60'. But remember, the higher you go, the faster that 1-2 shift needs to happen
Current Comp Orange: (Eaton) 10.80 @ 128mph, 3.31 gears and 28" tall tires. Stage 3 port and 2.76 upper only. Solid axle
Turbo: 723rwhp/689rwtq, 22# mustang dyno. track times to come
my current car isn't a good comparison. my first terminator, bone stock, down to paper air filter went 12.54 @ 114mph. that was with the stock tires as well.
you should be in the 11's easy. plenty have mentioned possible reasons for low ET.
I would also be launching at a higher rpm. while I probably have different size tires(28x16), they are the ET Streets and they are a great tire. I will be launching about 5700 the next time I am out. I just put 3.73's in as well. the way I look at it, if you aren't spinning, raise the launch rpm. it should drop your 60'. But remember, the higher you go, the faster that 1-2 shift needs to happen
I was wondering how long it was going to take you to post in here. I hope to be able to go to Noble here soon to see what I can do at a better track with some good air. Do you have a solid rear in your car or Irs? My tires are the MT ET streets on stock 17" rims, I don't know the actual size.
And about the twin turbo system, that is on the back burner until we have the kid and get used to that way of life. It is going to be a whole new world for us!!
As for two-steps (and limiters), I would avoid using the factory fuel-cut system (SCT, Diablo neutral rev limiter settings). Get a real 2-step it's more consistent.
I'm upgrading to a true two step soon but use that one because I figure it's better than holding it on my own. Never seen anyone damage anything with it so it's better than nothing.
Posi,
Just wondering if the Dragon Tb/P is better than the Accufab unit? Also are you selling Bogart race rims yet? If I miss a gear I normally just coast the rest of the way. I don't grind my gears very often at all. I have however been having trouble at the track with missing 4th, don't have a clue what my deal is. Do you know anything about the Diablo handheld tuners, I don't know if it has a 2step in it or not? What Psi are you leaving with? Thanks
Unless you're looking for every single last hp out of your car an Accufab should be plenty. I'm holding off on the rims. To worried about someone ordering the wrong offset and me being stuck with them.
I was wondering how long it was going to take you to post in here. I hope to be able to go to Noble here soon to see what I can do at a better track with some good air. Do you have a solid rear in your car or Irs? My tires are the MT ET streets on stock 17" rims, I don't know the actual size.
And about the twin turbo system, that is on the back burner until we have the kid and get used to that way of life. It is going to be a whole new world for us!!
my current car has a solid axle. the first one that went the 12.54 stock was obviously still IRS.
you should have decent sidewall on them. what pressure are you running in them? I would still try launching at a higher rpm. I know guys launching at 5k with the 17's and I think some launch higher. like I said, if it isn't spinning, try raising the launch rpm. that will help with the 60' and every little bit you help out in the front end, helps more in the back end of the track.
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