Greddy Turbo Kit !DYNO!
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From: PDX west
Originally Posted by brilliant,Oct 31 2007, 12:10 PM
just to clarify. my first dyno was with CAT on and I did not overboost but in fact UNDERBOOSTED to 6 psi. Furthermore, my peak whp was 201 at 7K rpm. to which the a/f was too rich and my tuner did not want to bust the cat. I will be returning on wednesday of next week for him to make a fresh map with test pipe. I'm assuming I should yield ok numbers with a brand new map. Neither him nor I could think of another reason I was not making any power other than an incorrect map.
I am not going to be using greddy's map as some of us are having issues with it.
p.s. vtec was not engaging.
I am not going to be using greddy's map as some of us are having issues with it.
p.s. vtec was not engaging.
When you get the tune sorted out, a word of caution on using a test pipe: watch the boost creep. You may want to consider porting the wastegate. This would be standard practice in the internal WG turbo world.
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From: Huntington Beach, CA
i'm not sure how rich i was in boost, but apparently it looked all good until 6500-7K.
hm, thanks for the advice, i wonder how much my shop is going to charge me to port the wastegate. you think i should just not bother with the testpipe? will my gains be minimal anyways?
Thanks in advance.
hm, thanks for the advice, i wonder how much my shop is going to charge me to port the wastegate. you think i should just not bother with the testpipe? will my gains be minimal anyways?
Thanks in advance.
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wow your problem is exact opposite of mine, with a test pipe on i way way boost spiked to almost 13+ psi 
. it still spikes even with cat but i have a bad feeling the emanage is the problem. im getting aem soon so hopefully that solves my problems.
. it still spikes even with cat but i have a bad feeling the emanage is the problem. im getting aem soon so hopefully that solves my problems.
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From: No.VA
Originally Posted by Spec_Ops2087,Oct 31 2007, 10:15 AM
With all that extra money spent into maxing out kit at only 50rwhp above stock, you could get a base inline kit without a hg and make more power with a small turbine.
I'm not bashing the greddy kit becuase I know it has its place, but going all out on such a small turbo doesn't make sense and isn't cost efficent.
FWIW, I made 360hp at 10psi on a GT35R which isn't nearly as efficent at low boost levels as a GT30
I'm not bashing the greddy kit becuase I know it has its place, but going all out on such a small turbo doesn't make sense and isn't cost efficent.
FWIW, I made 360hp at 10psi on a GT35R which isn't nearly as efficent at low boost levels as a GT30
thanks for your input!
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From: San Diego
I have some things to bring up...
Did you open the packages from greddy with a box cutter? Im wondering if possibly one of the intake connectors got sliced. it would be really hard to see if it did and depending on if greddy used a multiwall design for them it wouldnt take much...
White smoke, i keep thinking about white smoke and temp rising. That to me... sorry to say is a head gasket. just cause it went away doesnt mean it went away... you know what i mean... check your new plugs see if they're white. maybe one or two of them will be... you might have boost spiked and poped a fire ring or something to that affect..
wastegate porting.. VERY EASY...
Taken from another site
"This particular situation is caused by inadequate volume of the wastegate opening. The hole on the turbine is too small to let enough exhaust gasses bypass the turbine, thus causing the turbine to continue spinning faster. You can do one of two things. You can port out the turbine housing where the internal wastegate is and have a bigger "flapper" installed, thus increasing the volume, or you can weld that shut and upgrade to an external wastegate. No boost controller will solve this problem."
basically its a pretty easy job. you either find a larger flapper and hog out the whole then weld on the new flapper. OR like he said get a external. IF you were to do that then the greddy kit isnt the kit for you.
basically what im saying is. this kit is a low HP kit... its not made for 500+hp or even 400+ for that matter. so internal wastegates are fine given the exhaust isnt open too much and the motor isnt overcoming the wastegate hole.. so i would rec either running with a cat and your aftermarket exhaust (cant remember if you said you had one) or... run no cat and a stock exhaust.. up to you.. either way i say aftermarket exhaust in any form on the greddy kit is FTL.
Did you open the packages from greddy with a box cutter? Im wondering if possibly one of the intake connectors got sliced. it would be really hard to see if it did and depending on if greddy used a multiwall design for them it wouldnt take much...
White smoke, i keep thinking about white smoke and temp rising. That to me... sorry to say is a head gasket. just cause it went away doesnt mean it went away... you know what i mean... check your new plugs see if they're white. maybe one or two of them will be... you might have boost spiked and poped a fire ring or something to that affect..
wastegate porting.. VERY EASY...
Taken from another site
"This particular situation is caused by inadequate volume of the wastegate opening. The hole on the turbine is too small to let enough exhaust gasses bypass the turbine, thus causing the turbine to continue spinning faster. You can do one of two things. You can port out the turbine housing where the internal wastegate is and have a bigger "flapper" installed, thus increasing the volume, or you can weld that shut and upgrade to an external wastegate. No boost controller will solve this problem."
basically its a pretty easy job. you either find a larger flapper and hog out the whole then weld on the new flapper. OR like he said get a external. IF you were to do that then the greddy kit isnt the kit for you.
basically what im saying is. this kit is a low HP kit... its not made for 500+hp or even 400+ for that matter. so internal wastegates are fine given the exhaust isnt open too much and the motor isnt overcoming the wastegate hole.. so i would rec either running with a cat and your aftermarket exhaust (cant remember if you said you had one) or... run no cat and a stock exhaust.. up to you.. either way i say aftermarket exhaust in any form on the greddy kit is FTL.
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From: San Diego
Thought everyone might get a kick out of this... i dont know who has been lying to him...lol
http://item.express.ebay.com/Greddy-04-05-...cmdZExpressItem
http://item.express.ebay.com/Greddy-04-05-...cmdZExpressItem
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From: PDX west
Originally Posted by laruei,Nov 1 2007, 10:30 AM
.....
basically what im saying is. this kit is a low HP kit... its not made for 500+hp or even 400+ for that matter. so internal wastegates are fine given the exhaust isnt open too much and the motor isnt overcoming the wastegate hole.. so i would rec either running with a cat and your aftermarket exhaust (cant remember if you said you had one) or... run no cat and a stock exhaust.. up to you.. either way i say aftermarket exhaust in any form on the greddy kit is FTL.
basically what im saying is. this kit is a low HP kit... its not made for 500+hp or even 400+ for that matter. so internal wastegates are fine given the exhaust isnt open too much and the motor isnt overcoming the wastegate hole.. so i would rec either running with a cat and your aftermarket exhaust (cant remember if you said you had one) or... run no cat and a stock exhaust.. up to you.. either way i say aftermarket exhaust in any form on the greddy kit is FTL.
The turbo in the kit is perfectly capable of 350whp. Agreed if you are after 400+, you'd be wrong to think you can bolt on this kit and go.
Do you know anything about this turbo to say what exhaust will or won't work? Did you know it was set up with an aftermarket 2.5" system? The turbo impeller housing is 10cm2, which came into existence from Hahn racing out of their modded DSM work. Mitsubishi adopted the housing because of it's improvements for higher power apps. The other factor is the adiabatic efficiency of Mitsu turbos, which is better than some of the more familiar brands out there.
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From: PDX west
Originally Posted by S2Kart,Oct 31 2007, 03:07 PM
Yep, the supplied MAP is hosed up. Were you going rich more than 11.5:1 in boost?
When you get the tune sorted out, a word of caution on using a test pipe: watch the boost creep. You may want to consider porting the wastegate. This would be standard practice in the internal WG turbo world.
When you get the tune sorted out, a word of caution on using a test pipe: watch the boost creep. You may want to consider porting the wastegate. This would be standard practice in the internal WG turbo world.
Get the car to the 280-300WHP first, then go after deleting the cat, etc.