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3582vs3586

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paul s

20+ Year Contributor
625
6
Nov 17, 2002
kingston, ON_Canada
Just switched from hta3582 to hta3586 and at the same level of boost around 36psi I really see no power increase. The car is tuned with dsmlink and all the parameters are looking good. Afr is around 11.6(with meth) timing is at 18deg(top of third) with no knock(maybe .4 here and there). Do I need to run more boost to see results with a bigger turbo? and help would be great
 
I couldn't view your post on dsmlink forum...but it seems to me if you have no knock it seems you have more space to run more timing? 18 degrees seems a little bit in the midrange what you can run...I have tuned some cars to about 23-26 degrees of timing with very little or no knock this was on e-85 though? please chime in anyone if I am wrong!
 
Depends on the car, but generally I think people go overkill with timing on E85. The MBT window seems to be a lot "wider" than it is on gas.
 
From what ive heard and seen with the 2.3s, you dont gain anything from going over 15* timing. Less timing might make it pull harder/smoother up top.
 
Just switched from hta3582 to hta3586 and at the same level of boost around 36psi I really see no power increase. The car is tuned with dsmlink and all the parameters are looking good. Afr is around 11.6(with meth) timing is at 18deg(top of third) with no knock(maybe .4 here and there). Do I need to run more boost to see results with a bigger turbo? and help would be great



I recently upgraded from HTA3582 to HTA3586 also. The performance difference was noticeable even at the lowest boost I can run (~23psi). It reached full boost ~200-300rpm slower, but without looking at the logs, I can barely tell. Comparing the logs from both turbos, my 70-90 and 80-100 times are about the same with the HTA86 running 3-4psi less boost and AIT in the 90* vs 50* from the HTA82, if I remember correctly.

What method did you use to measure the performance difference? Did you check for boost leaks? I used red RTV on the compressor cover because anything above 30psi it would leaks. At that boost level the 86 should be making 50-75hp over the 82. Something is missing here.
 
I used the 60-90 times and ecmlink hp calc, I'm still on the 2g maf which might be a problem. How much timing are you running? jus came back from the track and did only 11.3/129 at 34psi.
 
I used the 60-90 times and ecmlink hp calc, I'm still on the 2g maf which might be a problem. How much timing are you running? jus came back from the track and did only 11.3/129 at 34psi.

ECMLink HP estimation isn't a very accurate method to use. I'm running 17-18* peak timing.

On my old HTA82, I ran 10.7@134, 24-25psi. Your car should be trapping higher at that boost. Your 2G mas could possibly over run. I would start over by lower the boost, check for leaks and go SD if you can.

PS. You can post a log on ECMLink forum and someone will take a look. I'm not a very good tuner so you will find better helps there.
 
The hp estimator is fairly accurate if it is calibrated right, I.e. Weight, gear ratio things, drive train losses etc. I'm not sure what's all in there to set as it has been a while since I have been on the link program.
 
The hp estimator is fairly accurate if it is calibrated right, I.e. Weight, gear ratio things, drive train losses etc. I'm not sure what's all in there to set as it has been a while since I have been on the link program.

That's my point. Most people don't know the exact weighs of their cars. How do you accurately measure the drive train losses? I would personally use 70-90 or 80-100 times. Good luck!
 
Your not going to get the benefit of the HTA3586 until you are maxed out on the HTA3582 setup. The bigger exducer is the only difference making for another 5-10lbs/min difference up top. You wont see this gain until you are pushing the turbo to it's limits. If you arent, both turbo's are going to be about the same in terms of output, with the 3586 being slightly slower to spool, and I mean slightly. Crank it up, and you will see the difference.
 
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