Yeah it was the old style, the new style manifold looks better.

 

I had lotsa boost creep with the InlinePro kit combined with a GT3076R turbo. Swapped the small 38 turbosmart for a 44 tial and no more creep.

 

sounds great Yuri... I'm looking forward to Japfest
hope you can take me for a spin there

 

I have the inline pro kit and it does this when the weather is cold out. They told me it was because of the cold air it makes more boost?????????????????????

 

peanutbutter, did u have the 2nd gen or the 2st gen fr mani? the one with the wg by the fuse box

 

1st or 2nd gen

 

Mine creeped 12 psi
Yes it's a bit cold over here, but it should only creep maybe 2 psi with very cold weather.

 

Wierd. Although I have had quite a few other issues with the Inline kit, boost creep is not one of them. I'm running a 3076 with a .82 exhaust housing at 7psi. I start out at about 8psi at 4-5K and it drops to about 6.8psi by redline. This is with a 70mm exhaust and with the wastegate routed back into the exhaust with a nice shallow angle about 3 ft from the turbo (Which should be worse than venting to ATM).

 

Correct, the air is much more dense (more then 20% more dense depending on the delta temperature we're talking about) making the wastegate have to do more work to exhaust the gases flowing through the engine.

 

I can make my boost creep on purpose though.... GT35R and Tial wastegate.


give about 30% throttle starting at 3,000rpm then keep reving at that pace till 7K. The turbo will be screaming it's going so fast yet the waste gate is shut due to partial throttle. Then instantly put your foot to the floor, watch the boost jump from 7.5 psi to 9psi for just a split second.

That's not normal boost creep though, in general its never an issue for me.