jdmintegra18

iTrader: (1)

Hey whats up fellas i have a jdm gsr block i built for boost eagle rods,wiseco 8:9:1 pistons and all that good stuff...i had the car street tuned on 14psi and it ran great would spin very badly throu 2nd into 3rd..now for some reson the turbo spools slower than it used to..like in 1st it would start building boost the smack the revlimiter now it pulls but dosent break the tires loose and have near the power it felt like it used too..and i have a open loop dump tube and it used to be pretty loud once opend up but its not loud at all....im thinkin it the manual boost controller..its a tial 38mm with 8psi spring and turbosmart mbc but its about 5-8 years old...would i mbc play this roll causeing the wastegate to act alil funny..im hoping yall say yes because ive checked for leaks and cant find anything...ive ordered a new mbc..thanks for your help

TheShodan

iTrader: (14)

No. (If I'm reading your message correctly) sounds like it may be in the turbocharger itself. Check for any wet oil leaks in the downpipe, blue smoke, or any strange sounds. Also check the intake of the turbo itself for any shaft play or damage in the turbo.

912

maybe your clutch thats what happen to me

Wopsicle69

what are you using for a turbo filter??

If your using a cone filter it may be dirty, try to give it a clean or buy a new one.

Just dont use screen mesh over the turbo, very cheap, very gay.

jdmintegra18

iTrader: (1)

ok let me reword this...the turbo spools fine but sometimes it goes to 9psi then maybe 12 then maybe 14 i have it set on 1bar..thats why i said i think its the mbc..and my dump pipe isnt as loud as it used to be maybe because it bleeding out alil...it used to build boost then hit the set point and come alive and the dump was loud as ****..i have a joe p mbc on the way so we will see

cnydc2

What psi spring is in the WG? You could always bypass the MBC and see if the WG its self is malfunctioning.