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i dont have scanmaster, and i dont know how to open that file
unimpressed with dyno results.. help needed
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hate to say it, but i think thats what they did!!
here is the link to the direct scan;
http://www.chuengineering.com/dsv1_52.zip
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I don't see a pull over about 4500rpm.. What's with that?
UNDER-PRESSURE
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Were they locking the converter up? How does the car run & feel? Dyno numbers don't always tell the whole story.
converter was not locked.
it runs good.. its borderline quick now..but I know its not where it should be.
the fuel delivery curve is way off.. I think im going to start with the basics and turn the meth off till i get it running as good as it should be then put it back on. My buddy has a wideband and we will start cracking into it. I will see if I can mess with it this weekend, I'm keeping my fingers crossed for a boost leak or something silly... i will keep everyone updated. thanks for the help and if you have any suggestions let me know.
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same question
Your guess is as good as mine,
here is an excel version of the direct scan.
My buddy sent me this link for a DIY leak tester, i thought i would forward this since its ingenious;
2G Turbo DSM Boost Leaks -How to test and fix
before the jokes start rolling he has a completely stock looking dsm that runs 11's on pump gas.
Why don't you ask Kevin King why the car dynoed low numbers? Everyone has a different opinion, I don't think that 11.3 is that lean considering the timing. My suggestion would be to talk to Mr. King and possible have a chip burned for alcohol injection.
He didn't know about the numbers.. I think they were somewhat anxious to get me out because I kept harassing them every week.
the chip is burned to use 98 octane all the time, ie; meth.
UNDER-PRESSURE
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A 98 octane chip is not the same as an Alky / Meth chip. More timing is available on an Alky chip & fuel is scalled back to compensate for the Alky. A new Turbo Tweak chip burned for your exact combination of parts would be my first step & retune from there. Was this a KDK combination that fell short of your goals or your creation that you had them try to tune?
That i did not know.
it was more or less a creation they tried to tune. The car was bought from a family member who didn't have time to finish it.. unfortunately i ran into this same problem so i thought the last piece was to tune it.. so i dropped it off at KDK.. I'm not upset at them by any means, but i think they could have gave me a couple of different options or tried to troubleshoot why it wasn't making good numbers more then they did. I know they are very busy and have tons of cars waiting.
UNDER-PRESSURE
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I agree that you should have been given some options. I would still try a new alky chipped burned for your car & retune from there. The dyno numbers look pretty solid & some more timing with a proper fuel curve will only help. If you need a hand tweaking it i'm in central florida also.
Get you out of where? You paid them money to tune the car, right? Kevin seems to be a reasonable guy and if he is not willing to answer some simple questions about the tune, I would take my car elsewhere. Personally, I think your dyno numbers are OK for a hot-air at that level of boost. Considering the modifications that have been done to the car, I think you might have somewhere in the area of 300 hp. A chip made for alcohol will make a difference. I would take up the Under-Pressure's offer to give you a hand with you car. Always nice to have a helping hand..
your telling me brand new motor with cam, plus a big front mount, bigger turbo, fuel pump, injectors, straight down pipe, and meth 300hp is good????
21 lbs?? i figured the turbo was much better then that considering its good for mid 500s at the crank.. then again there are alot more variables.
Assuming that your heads are stock, this is a major restriction for you. I am not to fimiliar with your turbo however, by the looks of your dyno you are far short of what that turbo is capable of. Don't always believe what a turbo is rated at, sometimes thoughs numbers can be deceiving..
Hello all,
I'm a new member here and just got my car tuned by KDK in Orlando FL.
I am pretty unimpressed with the results, they are closed now but I was told it was putting out 270hp to the wheels at 21 lbs with a almost perfect a/f ratio.
Mods are as follows;
1985 Buick T-Type
1987 ECU
Spearco Intercooler Part # 2-135
Turbo Turbonetics, Cheetah .63
Razor Alkyl meth kit
GReddy Profec B2 Boost Controller
Kenny Bell Headers
Kenny Bell Air and breather filters
Walboro 340 Fuel pump
Hot wire kit
Extender Chip
2 ½ straight dump downpipe
MSD 50 Lb injectors
Lt-1 Maf
Translator
Bosch Adj fuel pressure regulator
2004R Shift kit rebuilt with all new performance parts
2800 Torque Converter
Camshaft 231t 0.519”
V-8 Radiator
The motor has been rebuilt from top bottom, i was hoping for mid 300's or close to 400 to the wheels.. is this an unreasonable expectation?
please provide some input.
I see you have the old Spearco kit. Keep in mind it uses an elbow adaptor at the intake manifold that necks down to less than 1.5" ID in it's smallest spot. Like I said earlier I was going 110mph on low boost with a very similar setup to yours. Not sure what hp that would be but probably in the neighborhood of 300. Other than that, your might want to try porting the intake manifold or moving the TB to the pressure side. Both made a big difference but the TB probably made the biggest difference. Having that restriction on the inlet side of the turbo is not good.
Most of your big boys run 11.5's so this is not lean at all,(these are cars going 9's that I'm referring to, I asked a lot of questions this past week at Bowling Green) going to a 10.5 would actually bog the car down and make it run very sluggish. I shoot for 11.5 and my car pulls all the way to the top end of the track. Originally had it set for 11.8 but decided to richen it up. I'm only running about 24 degrees of timing. Adding boost with a fat tune might help, but you should really set your tune first before throwing any boost at it.
Remember when you add alcohol you are going to richen the air to fuel ratio, so you can run higher boost and not have knock and detonation. I would highly recommend you get your air to fuel ratio correct on low boost if running pump gas and work from there. Better safe then very sorry. I run 110 octane at all times so alcohol really doesn't play into it for me. I have it but it makes no real difference then fattening up the air to fuel ratio and bogging out the car. My numbers to date have been achieved on 110 octane plenty of tuning and monitoring my air to fuel ratio. My boost is still around 23#'s, it starts at 22 and has a slight bit of boost creep from there.
