All numbers at the wheels...

1st run: 243.97 hp, 235.53 tq (BOV leaked and belt slipped... only 7 psi)
2nd run: 258.00 hp, 241.81 tq (BOV leaked and belt slipped... only 7 psi)
3rd run: 250.05 hp, 237.35 tq (BOV leaked and belt slipped... only 7 psi)
4th run: 260.74 hp, 240.30 tq (fixed BOV... belt slipped)
5th run: 258.78 hp, 244.00 tq (belt slipped)
6th run: 281.03 hp, 250.73 tq (fixed everything)
7th run: 253.40 hp, 236.44 tq
8th run: 253.38 hp, 243.42 tq
9th run: 261.36 hp, 237.94 tq
10th run: 267.58 hp, 245.39 tq
11th run: 255.12 hp, 232.52 tq



4 check/service engine lights...
- 0134 = Front H02S (high voltage)
- 0135 = Front HO2S Heater
- 1336 = Crankshaft (CKPS) (POS) (COG)
- 1605 = A/T Diagnosis Communication Line



Fixed 0134 and 0135 tonight...


Decided to check the flex section of the y-pipe and saw this:
http://boostedmaximas.com/y2kevse/im..._flex_section/

The flex section is all jacked up... that's why the manual hp and tq curves were much lower than the old auto hp and tq curves.





I'm not going to mope about it..... the flex will be fixed and the car will be dynoed before the SC comes off for the turbo.

 

ic...how do u plan to fix the flex section? I guess the O2 sensor failure is related to the flex?

 

how was the BOV leaking??

 

Ouchy!!!,

If its not one thing its another... sometimes it seems like tuning will never stop. Are you going to send it back to Cattman or just have a muffler shop weld in a new flex? Also, in the turbo write-up they recommend a 3' inch exhaust. Does Cattman even have a 3' y-pipe?
Anyway..goo-luck figuring all that stuff out. Those numbers show major losses!! Keep us posted...

Deac

 

Yes, do tell. I have the same BOV, I want to know.

 

A new flex section will be put in and "hopefully" the car can be dynoed again. No, O2 sensor failure is from something else.


During high RPMs, the GReddy BOV wouldn't hold pressure and let out a lot of air. You can clearly hear it over the engine. pppppsssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhh!!!!!!!!!!


I'm not trippin' because I know what needs to be fixed. That is actually a Stillen y-pipe, not Cattman. I won't be needing the y-pipe for the changeover, but I want to fix the flex section just to see what this car can put down when healthy.

Seems like the car is destined to not get over 300 whp with the SC... we'll see about that though.

 

Hm...I don't think have that problem. So guess my BOV is fine? Can I tell by doing my own high rpm test or do I have to go on a dyno to find out?

 

those numbers fckign suck..

and i already posted before that greddy BOV's are prone to leak.. dont' ask why its in my sig though

 

Are you sure? I couldn't hear it during 4th gear runs on the freeway (taken it to redline plenty of times after the clutch was broken in). I had to tighten the BOV screw down almost all the way down... probably had 2-3 threads left.


Yup, they suck. In my case, tighten the BOV enough and it won't leak......... BUT it won't let off compressed air after the throttle plate closes. I believe I fixed it so it does blow off and keep pressure on 4th gear runs. It has about 5 threads left. Keep that in mind.

 

ouchie... lots of problems...

man, hope you get the y-pipe fixed as well as those codes... hopefully you can pull 300 whp even with the leaky BOV

 

It's all good. The y-pipe will be fixed and I'm not worried about 1605... but 1336 puzzles me.

It didn't leak after getting "fixed" on the dyno. Hehehe

 

Now that I think about it, I think you're right. Could explain my boost problem. It has to be the Greddy BOV now I think because I checked every hose and found no leaks. I did the same thing as you. I tightened it almost all the way down, and it seem to run better(and people said it's just in my head...lol), maybe because there was no more leak. However, like you said, it won't let off the compressed air. I also adjusted it enough where it did let off compressed air just a bit, 5 threads left was about the same for me. Doh!

So what do we do now? Get another BOV? I didn't have this problem when I had my previous SC with the Blitz BOV.

 

You never listen to me, huh? I told you your BOV leaked.

I saw 10.5 psi on a 4th gear run on the freeway yesterday. I say 5 threads works, but it depends on what psi the SC is pushing.

 

hmmm... you swapped out your flywheel right? That code indicates that your flywheel or drive plate is chipped.... or maybe the sensor got messed up when you did the tranny swap.

 

Yeah, I know..... which puzzles me. I guess I'll inspect the crankshaft sensor.

 

ghey

 

It might be too much for you to handle, but you can inspect it for me if you wish.

 

 

who did the swap kev?
this is at least the 2nd eff up from the swap enh?

 

Turbo95Max..

lets not forget what happen with the UDP

 

All names have been changed to protect the innocent:
Turtle95Max and come-mingo-with-me



Hehehehe

Nah, it's not their fault.

 

so tell me the UDP story again.. i seem to have forgot

 

TSB:
http://boostedmaximas.com/tsb/egi_harness1.jpg
http://boostedmaximas.com/tsb/egi_harness2.jpg
http://boostedmaximas.com/tsb/egi_harness3.jpg
http://boostedmaximas.com/tsb/egi_harness4.jpg
http://boostedmaximas.com/tsb/egi_harness5.jpg
http://boostedmaximas.com/tsb/egi_harness6.jpg
http://boostedmaximas.com/tsb/egi_harness7.jpg
http://boostedmaximas.com/tsb/egi_harness8.jpg

Wiring harness must've broke.

 

I'm still waiting for that SC.....

un-install that bad boy!

 

Go buy yourself a hairdryer.

 

weak sauce....

 

How did you know the flex was all jacked up, could this be the bees in the can sound im hearing?

 

the greddy type S default spring rating is good up to 12 psi.

they recommend the "racing" spring set for anything with boost pressure higher.


that sucks keving. hope you get all your stuff fixed... maybe its those giant brembos slowing you down.

 

Rice juice? Next, I should get gold rims too!


I had a hunch it was screwed up because the hp and tq curves were well below what the car put out when it was a 'magic. No, the bees in the can sound just happens.


Too much boost for my own good? I need to get rid of the brembos and use stock calipers/rotors. Hehehe

 

Kev if your flex was shot did you notice your EGT temp go up?

 

You only checked it b/c my flex section is bad.

 

Nothing unusual.

 

Get a room

Why are your flex pics so HUGE and BLURRY?

 

Kev wanted to have picture taking skills like me...

muahhhhhhhhhhhhhhhhzzzz

 

1260 res pics... it's REALLY hard to move the cat away with one hand (I didn't take the whole thing off) and take clear pictures with another while being so close to the focus point.

I'll take better pictures when the flex gets chopped off.

 

 

that's what the wifey is for.. have her give you a hand, or two.

 

Kev, when you said about 5 threads left, did you mean with or without the hex nut on? I adjusted to about 5 threads left, but that's including the hex nut on.

 

I really don't feel like pulling my test pipe off to check this. I hate exhaust work. Kev, did you notice any difference in power from driving around town?

 

I asked her to hold the O2 sensor up but she went inside to watch CSI.


5 threads left without the hex nut... sorry, should've been more clear on that. Make sure your BOV goes off because that might be too tight for your setup.


Sad to say, but no I didn't feel any decrease in performance during city driving even though the hp curve was about -25 whp at one point (vs. automagic 288 whp dyno). Guess I need to recalibrate my butt dyno.