Ways to hold boost at higher rpms

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Oct 1, 2009 | 01:14 PM

#46

neonglh

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Quote:

Originally Posted by EVOIXreno

intake temps don't mean the air entering the engine isn't hot... that means your intake is doing its job! If your over working the turbo it will make the air hotter period!

The intake air temp sensor is 8" from the throttlebody

That's how the AEM works! Speed density baby.

Oct 1, 2009 | 01:23 PM

#47

justa4banger

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From: underground

So what your saying is that your trapping 123mph on a stock 9 turbo,stock block????isn't that like a record

Oct 1, 2009 | 01:26 PM

#48

neonglh

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It may be, I know it's 6th place ET and 7th place MPH as of today, but I don't know about the people faster than me and their engines.

It's definitely scooting

Oct 1, 2009 | 01:29 PM

#49

justa4banger

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That's fast lol...don't change anything in your setup, cuz its gona get slower...lol...happend to me...

Oct 1, 2009 | 01:32 PM

#50

neonglh

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I definitely want to go to E85 next season. I have some plans for 2010!

Oct 1, 2009 | 01:35 PM

#51

justa4banger

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What fuel you running now??? I love e85...you can throw a bunch of timing and no knock

Oct 1, 2009 | 01:38 PM

#52

neonglh

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I am running 100 octane from the pump. Delta Sonic sells at 4 of their pumps here.

Oct 1, 2009 | 01:40 PM

#53

justa4banger

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You have one strong evo my friend

Oct 1, 2009 | 01:47 PM

#54

andrewzaragoza

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you could also try calling fp. i believe they have a 25psi wastegate. that i believe is higher than the forge.

Oct 1, 2009 | 02:04 PM

#55

TxEvo8

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You have an evo 8 with an evo 9 turbo?

Oct 1, 2009 | 02:30 PM

#56

neonglh

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Quote:

Originally Posted by TxEvo8

You have an evo 8 with an evo 9 turbo?

Yup, other than the coolant line and the outlet, they bolt right up

Oct 1, 2009 | 02:48 PM

#57

EVOIXreno

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Totally forgot about the AEM....it really could just be that that's all your going to get!

Oct 1, 2009 | 08:32 PM

#58

sparky

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Quote:

Originally Posted by brent_strong

Boost taper is generally accepted as a wastegate problem....

Actually, boost creep is usually considered to be wastegate related. As in insufficient bypass flow, etc. Boost taper, on the other hand, is more likely to be backpressure related.

Last edited by sparky; Oct 1, 2009 at 08:35 PM.

Oct 1, 2009 | 09:42 PM

#59

sparky

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Quote:

Originally Posted by justa4banger

So what your saying is that your trapping 123mph on a stock 9 turbo,stock block????isn't that like a record

Is this a stock, unbuttoned longblock with untouched head and stock cams?

Oct 1, 2009 | 09:50 PM

#60

sparky

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Quote:

Originally Posted by neonglh

So... I need help guys. I am running 28 psi, about to crank it up more, but it falls hard up top. After 7000 rpm, its down to 21 or lower, and keeps dropping..... My MPH is pretty much stuck at 122 - 123 mph right now at 28 psi. I run the... stock turbo with a ported hot side, buschur piping, buschur race fmic, etc... are there tricks that I can do here.I am about ready to rip that turbo out and weld up the wastegate,,,

How extensive is the porting work on the hotside? Who ported it? How much wastegate spring pressure are you running and what WGA? Also, what DV/BOV setup do you have?

Last edited by sparky; Oct 1, 2009 at 10:43 PM.

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