Originally Posted by 1badBlueberrySC
(Post 3882536)
THAT WAS NOT THE STOCK TURBO! CHeck their other thread people... this turbo runs out of breath well before 400ft/lbs
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I didn't see the ported head into this equation....
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are they the first to port the LNF head?
what kind of issues does that create with the DI? |
Originally Posted by 1badBlueberrySC
(Post 3882578)
I didn't see the ported head into this equation....
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Originally Posted by Terminator2
(Post 3882455)
You got it. Because the diameter is changed you are in effect fooling the ECM into thinking it has reached it target pressure drop when it has not. I think the bigger throttle body is tricking the ECM into thinking it has reached the point sooner so less power. IIRC it is kinda like the DALs when you mod it reaches the target airload sooner with less boost pressure needed. The air velocity is decreased compared to the stock opening because of the larger surface area an that is skewing readings. I wish I knew more. I would contact Baldturbofreak if you want to know more. He knows what happens exactly when you change the diameter of the throttle body on the LNF. :twothumbs
Originally Posted by 1badBlueberrySC
(Post 3882568)
The turbo cannot support 411ft/lbs...
Just ask Terminator pretty much has max'd it out... at 350whp and 375wtq I smell somethin....... |
Originally Posted by Matt M
(Post 3882603)
We verified that 100% actual throttle position is what it says. When the PCM closes the throttle a little (or a lot) for various reasons, it shows on the log as doing so. In this case, it maintains 100% throttle throughout the pass. We also regulated the MAP on the intake manifold, but it didn't seem to help, although HP numbers today have been about 6-8 higher than Saturday, so who knows.
It can and does support 411 ft lbs. If we start the pull earlier, I bet it will make a little more yet. Why are you so quick to dispute everything we say. We are in this to support the community and make these cars fast together. Stop fighting everything we do and say. He did not know you are running a ported head on the car. My car would easily be over 400 wtrq with your head on it. :twothumbs. Need money for the install though. I cannot do it myself unfortunately. |
I'm not disputing what you said Matt... get your panties out of your butt. I didn't not see the ported head.
Goddamn read what I wrote dude! |
What Are We Yelling About!?!?!
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Who's yelling?
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Lol... I just hope they can get this panned out. I would be interested to see what this would do on the big turbo balt... should be able to get a few more MAF lbs/min, which would be nice.
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i want a ported head :(
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Interesting!!!
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Then PM them or buy one.
:lol: This is a thread about throttle body swapping and how it apparently is failing. Kudos for trying, but I think I will not go through a headache for 4-5mm...but hey, more vendors should do this. |
how hard was it to get the head off of this car
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Originally Posted by Terminator2
(Post 3882455)
It is a pain.You have to remove the valvecover, cam chains, cams, manifold for the turbo, turbo itself, etc. It is a big job unless, and you are a master mechanic I would not attempt it.
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was the ECM programmed for the different TB that could be the reason for the loss
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Originally Posted by PimpLay2
(Post 3883106)
that answer ure question revhigh
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Originally Posted by 1badBlueberrySC
(Post 3882658)
Goddamn read what I wrote dude!
We did another pull going WOT at 40mph in 3rd gear and torque was 420 ft lbs. Going WOT that early results in closed throttle and open bypass valve at about 90mph based on the 3 second overboost. Hopefully we won't have to regulate the MAP sensors with the stock turbo. |
Shouldn't you be dynoing in 4th gear, or the gear closest to a 1:1 ratio?
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Originally Posted by Matt M
(Post 3883717)
lol. likewise.
We did another pull going WOT at 40mph in 3rd gear and torque was 420 ft lbs. Going WOT that early results in closed throttle and open bypass valve at about 90mph based on the 3 second overboost. Hopefully we won't have to regulate the MAP sensors with the stock turbo. |
I wonder if the GM upgrade will solve the overboosting issue....
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Originally Posted by MaxVQ35DE
(Post 3883800)
I wonder if the GM upgrade will solve the overboosting issue....
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can you just buy the sensors?
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Originally Posted by revhigh18
(Post 3882823)
how hard was it to get the head off of this car
Swapping the head is a pretty solid days work if you take your time and double check everything.
Originally Posted by Terminator2
(Post 3883762)
Back your DALs off some. The torque will drop but at least the throttle wont slam shut after 3 seconds. Gotta sacrifice some of that torque for the sake of driveability. if I pushed mine any harder it would do the same. 400+ wtrq does nothing if the throttle slams shut on you.
I put the stock intake and TB back on after a few pulls today. After a few more pulls, we dyno'd again with the boost controller bumped up a little and going WOT by 30mph. Max boost was 29psi and torque hit 428 ft lbs. Here's a couple pulls starting at different RPMs to show how the boost eventually fades to the same level regardless of how the pull starts. http://sites.commercecreators.com/fo...quemonster.bmp |
hows the inj ms looking? pegged 6ms yet?
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