BOOST PROBLEM PLEASE HELP!
#21
If you are having issues with holding boost and using and internal wastegate you may want to check the condition of the turbo exhaust housing. It is possible that the housing may be cracked. Mitsubishi turbos are known for this over time the wastegate ports erode and then extra exhaust flow is diverted away from the exhaust wheel. This will limit the max boost you make and slow spool down only slightly.
#22
According to turbo-kits.com (http://www.turbo-kits.com/tC_turbo_kits.html) the Greddy street turbo kit is only 5.6 PSI. I think UMS might have been right and you will need a boost controller of some kind to boost higher. It is normal for an internal gate to spike and then fall to its set psi.
If I had some time I would not mind trying to help. Where in Phoenix are you??
If I had some time I would not mind trying to help. Where in Phoenix are you??
i am in north phoenix and i work at camelback toyota on 16thst
#24
yeah lol that sounds about right and the s pipe is 2.5inch but emanage ultimate. well lets hope that with the external wastegate and electric cutout itll be in the 300's
#25
I hope not! ...for your sake. Those 440s are too small for 300+ whp. It sounds to me like you have all the pieces for a decent <250whp setup but for 300+ you'll need bigger injectors and I doubt your 2.5/2.25" exhaust will be sufficient either.
#26
The new way it's going to be setup like I said will be with a cutout and external wastegate and 1000cc injectors
#27
I must have missed the part where you meant to say you were adding 1000cc injectors but didn't. I guess you're planning to run e85? You'll probably want to get a return fuel system and a new pump too.
#29
yeah i have a walbro 255 fuel pump no fuel return system but yeah lol
#30
#31
I would Check your Clutch, I have THE EXACT SAME problem, I have the greddy kit, with 550cc injectors + a turbosmart Evo BOV, 2 step colder plugs (which you should get also), I have a 2.5 exhaust with magnaflow High flow cat and a 22" resonator in the midpipe and an Injen rear section, all this tuned by an AEM FIC, and after 3 days of worthless tunning I only got up to 222whp and 214tq.
Having wasted time+money The *special* tuner found out that my car had a bad clutch... -.-* so I got a New clutch, Im trying to get an Greddy Profec B Spec I and I'm still wondering If i should go with a new 3" midpipe...
Watchu guys think? I want to have everything ready for 300whp
I talked to some guys here, and even they're programs didn't help me much... still I'll give the setup another go, once its ready!
Having wasted time+money The *special* tuner found out that my car had a bad clutch... -.-* so I got a New clutch, Im trying to get an Greddy Profec B Spec I and I'm still wondering If i should go with a new 3" midpipe...
Watchu guys think? I want to have everything ready for 300whp
I talked to some guys here, and even they're programs didn't help me much... still I'll give the setup another go, once its ready!
#32
but he said he hits 7 first and then drops to 5. I'd first check the turbo housing, if that checks out. I'd weld the internal wastegate shut and just do external. I've never liked internal wastegates.
#33
Yup mine does that too, hits a 7.5-8psi PEAK then holds out at 5.6 - 6psi, as I've heard this is common with internal wastegates... All I know is that my car was soooo F@w*ing slow before the clutch install, and after that I felt like superman ripping 370's, 350's, 07 'stang GT's and all that before some douche hit me when he ran a red light... it was a good 2 weeks
#34
Yup mine does that too, hits a 7.5-8psi PEAK then holds out at 5.6 - 6psi, as I've heard this is common with internal wastegates... All I know is that my car was soooo F@w*ing slow before the clutch install, and after that I felt like superman ripping 370's, 350's, 07 'stang GT's and all that before some douche hit me when he ran a red light... it was a good 2 weeks
#35
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