is it supposed to look like this?

[john99gtp]

this is on the gtp.....

 

so i was changing my TSTAT today, cause im sick of the car not even passing 130* for a 25 minute drive (its drilled) and i noticed this

 

 

 

http://www.jbarbieri.net/gtp/problem/

 

Is that supposed to be like that? its right near the TB (in front, as in front of car (to the left from the angle i shot it at)) and behind the valve covers. It looks like something is supposed to cover it up. it looks like, oh noes, a vacuum leak.

 

 

doesnt vacuum leak == extra air == possible extra kr?

 

 

if so, i think i found one of the problems

 

lemme know what you guys think

 

thanks

 

john

[LukeZ34]

That looks like the actuator that controls the boost bypass valve (right above that). That's just the bleeder port on it, which is why there's the remants of the foam on it, as it's meant to be open to the atmosphere.

The wastegate actuator on the TGP has a similar setup if you've ever looked at it. It has the one port that's open to the atmosphere (that had a foam filter on it from the factory) which is how the WG actuator bleeds the boost off.

[sl3196]

Luke is right I believe. Mine has that same port.

[john99gtp]

damn, and its supposed to be open like that?

 

 

i was hoping i found my source of kr

[sl3196]

Yeah mine looks just like that. No cap or anything on it.

[pwmin]

you can see the remnants of the foam filter. its just a vent

[john99gtp]

 

 

on the plus side, I have heat now!!!

[AWeb80]

 

i was hoping i found my source of kr

 

Its an L67....you'll always have Knock....

[pwmin]

how much kr you getting? its not false kr is it?

[john99gtp]

5-8*

 

most of it partial, when im actually at WOT for a bit, it goes down to 3-5

 

 

 

 

and adam, with these mods i should not have KR. I dont even have as small of a pulley as most people

[pwmin]

i didnt have my riv for long and i never had any false kr, but could the hard mounts cause some false kr like the dp hitting the sway bar? try tgp plugs instead of the autolites, that might help. yeah you def shouldnt have any with those mods or maybe 1-2. i had 3-4 with my riv sometimes, but that wasnt enough to bother me. i had tgp plugs, dp, 2.5" exhaust, a 3.25 pulley, 180 stat and thats it.

[skalor]

How much timing are you seeing commanded by the PCM?? If you are seeing more than 20* then that's way too much timing. I would expect you to be able to run ~17-18* and be KR free.

[john99gtp]

17 at WOT (its supposed to be 16.5, which is in the PCM, but my gauge doesnt read half numbers) so im gonna say 17

[skalor]

That is odd that you still have the much KR. When I had my GTX I had a 3.4", 3" DP(no cat), SLP catback, SLP intake, AL605s, and 180 themo. I could only run ~15* of timing in order to be KR free and you have a lot more mods. Are you sure it's not false, trans dipstick maybe??

[john99gtp]

Im not positive. I ran with some Torco at IDD in May, and it didnt kill alot of KR. I still had about the same. On the other hand, I had a local guy tune my pcm some more, and added more fuel. This made me a bit richer, but it did help the KR problem. If it is false, where the hell do I start looking for sources. I know one right off the bat is the DP/sway, but I dont feel it hitting at all.

 

Heres a copy of my latest scan: http://www.metrocast.net/~jbarbieri/gtp/10-30-scan.xls

 

any ideas :? :?

[sl3196]

You sure that sway bar aint hitting?? Torco should have got rid of some if it was real.

[AWeb80]

and adam, with these mods i should not have KR. I dont even have as small of a pulley as most people

 

I was being sarcastic....in a way...lol