HTA3794r switch... preliminary results inside
Aug 22, 2011, 03:31 PM
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HTA3794r switch... preliminary results inside
well, 3rd turbo later... and thanks to the guys at FP, i am now on the HTA94. I have to say this turbo is lookin' pretty good so far. I have 3 stiff springs in each of my mvs wastegates so my base boost is around 27psi. I also had the car road tuned to about 35psi but the front facing setup seems to make it creep up to 37psi up top. I can see the EBC trying to reduce duty to compensate as it hits 35psi then slowly goes to 37psi, then immediately back to 35psi again, LOL.
Anyway, here is an overlay of both 27psi and 35-37psi. Both on E85 of course. Same motor i've always had, still going strong. L19s and cosworth gasket now to try to keep that head on. I think i'll keep it here for a bit and see how it does.
I'm sure when i raise it past 40psi again, it will surpass my previous whp.
**btw the wheels spun during the high boost pulls so im not sure how accurate the VDR is. But i couldnt get it to hook in 3rd gear from the hit on street tires. Eventually it does hook after the tq hit. So i think the reading is fine.
Anyway, here is an overlay of both 27psi and 35-37psi. Both on E85 of course. Same motor i've always had, still going strong. L19s and cosworth gasket now to try to keep that head on. I think i'll keep it here for a bit and see how it does.
I'm sure when i raise it past 40psi again, it will surpass my previous whp.
**btw the wheels spun during the high boost pulls so im not sure how accurate the VDR is. But i couldnt get it to hook in 3rd gear from the hit on street tires. Eventually it does hook after the tq hit. So i think the reading is fine.
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Aug 23, 2011, 02:51 PM
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when we first started tuning it out, i was disappointed in the lag... but once the AFR was dialed in a bit and we started to add alot more timing that changed everything. (not to mention extending the mivec advance just a tad up the rpm range) I think it spools decently for a 67mm turbo on a 2.0l motor.
Aug 23, 2011, 02:57 PM
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Well, if you read through most of my posts... i ALWAYS use a real dyno instead. Theres two local Mustang Dynos that all of my graphs are pulled from.
This was a late night road tuning session after i just got my car back up and wanted to see what it was doing. I think for what its worth, its good information.
btw, i used to run all my logs through VDR even on the dyno just to see out of curiosity and it would always read within 5-10hp +/- i dont think its that off if used properly.
I'll send them to the other guy if he sends me his email to run it through VD. Or i'll download it myself if i have time to mess w/ it tonght.
Aug 23, 2011, 03:00 PM
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I'll know for sure when i put it back on the same dyno for comparison
Aug 23, 2011, 04:11 PM
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If it worked back then, it works today.
Well, if you read through most of my posts... i ALWAYS use a real dyno instead. Theres two local Mustang Dynos that all of my graphs are pulled from.
This was a late night road tuning session after i just got my car back up and wanted to see what it was doing. I think for what its worth, its good information.
btw, i used to run all my logs through VDR even on the dyno just to see out of curiosity and it would always read within 5-10hp +/- i dont think its that off if used properly.
I'll send them to the other guy if he sends me his email to run it through VD. Or i'll download it myself if i have time to mess w/ it tonght.
Well, if you read through most of my posts... i ALWAYS use a real dyno instead. Theres two local Mustang Dynos that all of my graphs are pulled from.
This was a late night road tuning session after i just got my car back up and wanted to see what it was doing. I think for what its worth, its good information.
btw, i used to run all my logs through VDR even on the dyno just to see out of curiosity and it would always read within 5-10hp +/- i dont think its that off if used properly.
I'll send them to the other guy if he sends me his email to run it through VD. Or i'll download it myself if i have time to mess w/ it tonght.
Cool.
Aug 24, 2011, 10:53 AM
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Hey, I emailed you the log text file to use. I am curious how different VD is versus VDR also
Settings i used were Evo8 3rd gear (im an evo9 but w/ evo8 gearing)
25.7" tires (245/40/18)
GW - 2150lbs
Driver - 145lbs
I did have the weather correction ON (100degrees) - its been relentless in Houston. Um, i think thats it for the details.
I am either going to get it strapped on a dyno or see what the traps are at the track this wknd. Guess we'll see how it goes!
-Tom