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[Joseph Davis]

idk but wont i have the advantage of running more boost on pump gas with this low CR?

More boost at less power. 

You upped your knock limit by dropping the CR, but it's still a dinky ass 1.6 liter so you didn't exactly pick up a lot of headroom there, princess.

I foresee split sleeves in your future.

[d112crzy]

Think of it as an over cammed motor.

[bigwig]

The compression doesn't make a huge difference out of boost.  It makes a difference, but not enough to care for the most part.  It would be different if when he gave it a boot full and there was no turbo.  Then it would be shit.  There is a turbo, so it's not an issue.

The turbo is your issue.  Replace it, and pick up 20hp.  I expect your current unit to dig one of the wheels into the housings within the first 2000 miles based on your description of it's original condition.

[b20beast]

idk but wont i have the advantage of running more boost on pump gas with this low CR?

More boost at less power. 

You upped your knock limit by dropping the CR, but it's still a dinky ass 1.6 liter so you didn't exactly pick up a lot of headroom there, princess.

I foresee split sleeves in your future.

can you explain a little more on the cracked sleeves?....
im not understaning why it would crack if there is no knock

[Joseph Davis]

The turbo is your issue.  Replace it, and pick up 20hp. 

You're dumb, Rass.  If there was 20 hp worth of friction across that turbine shaft it'd have come apart already.  The motor sounds like it's making the power it should on a Dynojet, Dynapack, or anything else that reads high.

[bigwig]

The turbo is your issue.  Replace it, and pick up 20hp. 

You're dumb, Rass.  If there was 20 hp worth of friction across that turbine shaft it'd have come apart already.  The motor sounds like it's making the power it should on a Dynojet, Dynapack, or anything else that reads high.

I don't agree at all.  I'd put $20 on the turbo being the issue.

I'd still be interested in seeing a shot of the dyno chart, engine bay, and a full parts list.  If it's the engine, it's not because it's a B16, with low compression, and ITR cams but it has low compression or something wasn't installed correctly.

[b20beast]

[bigwig]

Turbo issue.  Look at that torque drop in the top end.  Again, I'd put $20 on it.

[b20beast]

Tial 38mm Wastegate
Ebay Cast manifold
Tial Bov
880cc injectors
Walbro 225
spooling performance intercooler pipe.
2.25->2.5"
Precision 350hp intercooler
garrett t3 t4 60 trim .63
type r cams.




By jdmking, shot with Motorola Phone at 2009-04-17

[Joseph Davis]

Turbo issue.  Look at that torque drop in the top end.  Again, I'd put $20 on it.

The torque drop that follows engine rpm and not airmass/turbine shaft speed?  That torque drop?

Looking at that raggedy-ass power output that's repeatable across several runs screams to me cam timing.

[b20beast]

Timing, im a noob tuner
anyone wanna help me smooth the rest of cols?

[bigwig]

Turbo issue.  Look at that torque drop in the top end.  Again, I'd put $20 on it.

The torque drop that follows engine rpm and not airmass/turbine shaft speed?  That torque drop?

Looking at that raggedy-ass power output that's repeatable across several runs screams to me cam timing.

I could buy cam timing, but if someone tells me "yea, I got this turbo and it was frozen solid and beat to shit and a rebuilt it" I'm going with that as my issue.  Torque drop like that indicates a turbo not being able to keep up.  The turbo is beat to shit, I'd say there is a fair chance it's the issue.

If cam timing fixes it, I'll paypal you $20.  I still think it's turbo related.

[b20beast]

fuel

[b20beast]

datalig/boost log

[d112crzy]

Did your afrs richen up in the last 500rpm or stay consistent?

*edit* was posting before that last screenshot was posted.

[b20beast]

cam timing seems to be good last time i checked!

common guys, i posted alot of info here, im sure you can figure it out

[Joseph Davis]

Turbo issue.  Look at that torque drop in the top end.  Again, I'd put $20 on it.

The torque drop that follows engine rpm and not airmass/turbine shaft speed?  That torque drop?

Looking at that raggedy-ass power output that's repeatable across several runs screams to me cam timing.

I could buy cam timing, but if someone tells me "yea, I got this turbo and it was frozen solid and beat to shit and a rebuilt it" I'm going with that as my issue.  Torque drop like that indicates a turbo not being able to keep up.  The turbo is beat to shit, I'd say there is a fair chance it's the issue.

If the turbo couldn't kee up then the power delivery would go flat, not fall off as well.

cam timing seems to be good last time i checked!

How did you determine that?  The same way you determined you should break 300 whp?

common guys, i posted alot of info here, im sure you can figure it out

That's exactly the problem.  You haven't posted any information worth looking at, and you expect someone else to fix it for you in an online forum when you're the one sitting in front of the car.

[crxvtec91]

Just for the hell of it do a comp/ leak down test.

[b20beast]

Turbo issue.  Look at that torque drop in the top end.  Again, I'd put $20 on it.

The torque drop that follows engine rpm and not airmass/turbine shaft speed?  That torque drop?

Looking at that raggedy-ass power output that's repeatable across several runs screams to me cam timing.

I could buy cam timing, but if someone tells me "yea, I got this turbo and it was frozen solid and beat to shit and a rebuilt it" I'm going with that as my issue.  Torque drop like that indicates a turbo not being able to keep up.  The turbo is beat to shit, I'd say there is a fair chance it's the issue.

If the turbo couldn't kee up then the power delivery would go flat, not fall off as well.

cam timing seems to be good last time i checked!

How did you determine that?  The same way you determined you should break 300 whp?

common guys, i posted alot of info here, im sure you can figure it out

That's exactly the problem.  You haven't posted any information worth looking at, and you expect someone else to fix it for you in an online forum when you're the one sitting in front of the car.

check the cam timing by lineing up the crank pully to TDC and Cam gears

at least give me some clues

[lilpooh21186]

Did u have a solid 14.7 afr in boost ?

[b20beast]

Did u have a solid 14.7 afr in boost ?

11's arf

[lilpooh21186]

Lol I was joking about the 14.7 try plug reading that can tell u alotqbout how your motor is running/ wants to run

[Gold DA9]

unhook the vac line from the wastegate, then get back to us.

ive done this before and it does wonders. Just hope you have the extra fuel to compensate.


Try a thinner head gasket.. 8:1 is definitely a fail with a b16

[Gold DA9]

change that exhaust to a straight 2.5 also.

[b20beast]

change that exhaust to a straight 2.5 also.

exhaust is a straight 2.5" no cat, no resonator

just a muffler

[Gold DA9]

you said 2.25->2.5 didnt you.. meaning your downpipe is 2.25?

[b20beast]

you said 2.25->2.5 didnt you.. meaning your downpipe is 2.25?

intercooler pipe

[chris]

Run 25 degrees and real gas.

[b20beast]

I am trying to figure out why the power drops off on top!

[Joseph Davis]

You've already been told.