converter stall recommendation?

[GNVYUS 1]

Rick, the converter is 2800 at 0 boost correct?

My Precision 5 disc is that and I'm happy with that considering my next turbo will be PTE's next size bigger than the 62/65 someday. BTW, I'm trying to get Eric at TT to play with the 2 step in the chips to make it at a slam dunk launch everytime.

And Rick you're killing us here by not mentioning the BOV, no one assumed it and definitely not an ATR FMIC. Block it off and see what happens or slap on the stocker and know for sure. Can you post a pic of the ATR where the BOV is?

 

[GNRick]

Rick, the converter is 2800 at 0 boost correct?

My Precision 5 disc is that and I'm happy with that considering my next turbo will be PTE's next size bigger than the 62/65 someday. BTW, I'm trying to get Eric at TT to play with the 2 step in the chips to make it at a slam dunk launch everytime.

And Rick you're killing us here by not mentioning the BOV, no one assumed it and definitely not an ATR FMIC. Block it off and see what happens or slap on the stocker and know for sure. Can you post a pic of the ATR where the BOV is?

Mike- I sent you an email. I'll have the stocker installed in a day or two. If that fixes the problem then I'll address the BOV. If not, then I'll try to remove the cat converter and see what happens. Thanks for your help. It is driving me nuts!

 

[GNRick]

Happy to report......

I put on the stock intercooler and there is a definite improvement. I can get about 4 -5 lbs of boost now at 3400-3500 rpm. It seems when I power brake, however, the car starts to push at about 3000-3200 rpm. Boost is maybe a couple pounds at that point. I was told that if I can make boost sooner, the brakes won't hold. He was right. So tomorrow I will remove the blow off valve and see what I can see. Maybe I'll put a plate in there to block it off altogether. I'm hoping the intercooler is ok. Probably the front mount intercooler would give me a couple extra pounds of boost when powerbraking. When I first bought the car, I could hold 5 psi while powerbraking and my best 60' was 1.67.

 

[Sleeper-6]

If you cap off the inlet and outlet of the ATR IC, you can pressurize it with shop air. That way you can listen and feel for leaks around the IC and BOV.

 

[GNRick]

I pressure tested my ATR front mount intercooler today. Found several air leaks in the core and also where the blow off valve attaches. Thanks for your help everyone.

 

[GNVYUS 1]

I'd have it fixed and then sell it, there are way better FMIC's out there.

I'd still do the Cam Sensor tool just to make sure it's dead on.

 

[GNRick]

Yes I need to do the cam sensor test. A friend of mine said he saw some truck intercoolers at a radiator shop in Bloomington, IL. waiting to be repaired. I'll call them and see if they can fix it. Don't really want to spend $800 on the PTE stock location intercooler, and don't want to buy another front mount due to cooling issues.

 

[wile87]

if you can get the car into the city a- reliable specializes in gn,s. they are located on i believe on fullerton and kostner in chicago
for the trans call jimmy's in mundellien il. he has the 200 down to an art form

 

[Mike Licht]

So is your problem that you cannot buld boost or that the brakes cannot hold the car once you do? Are you saying that with a stock turbo and a 3200 converter you can only get 4 or 5 PSI and then nothing?
Mike

 

[DCVING 6]

if you can get the car into the city a- reliable specializes in gn,s. they are located on i believe on fullerton and kostner in chicago
for the trans call jimmy's in mundellien il. he has the 200 down to an art form

Isn't A-reliable the junk yard? Are you thinking A-Alert?

 

[GNRick]

So is your problem that you cannot buld boost or that the brakes cannot hold the car once you do? Are you saying that with a stock turbo and a 3200 converter you can only get 4 or 5 PSI and then nothing?
Mike

Hi Mike,

I was not able to build boost with the ATR intercooler when power braking and finally at 3400 rpm the brakes could no longer hold the car. the turbo is a 6157e which I purchased from you a couple months ago.
When driving the car, I noticed that boost did not come on until 3500 rpm. I removed the intercooler and found several leaks. Are you with me? Some one else on this board has a TE-60 (i believe) and he took his car for a drive at my request. He reported to me that at 3500 rpm he had 14 psi boost. He also said his boost started to come on at 2300 rpm. He has a 3600 rpm stall converter. I have a 3200-3500 stall converter. Some have said it is my converter, but I think this guy proved that it is not. Maybe I should have asked him what type of intercooler he has. Let me know if you have any other questions. Thanks.

 

[Mike Licht]

Since boost is depentant on engine load the boost you get when driving will be different than the boost when power braking. So the I get no boost till 3500 when driving does not really apply to power braking IMO. 14 PSI at 3500 I would like to see that on a log file.
Mike

 

[bison]

Hi Mike,

I was not able to build boost with the ATR intercooler when power braking and finally at 3400 rpm the brakes could no longer hold the car. the turbo is a 6157e which I purchased from you a couple months ago.
When driving the car, I noticed that boost did not come on until 3500 rpm. I removed the intercooler and found several leaks. Are you with me? Some one else on this board has a TE-60 (i believe) and he took his car for a drive at my request. He reported to me that at 3500 rpm he had 14 psi boost. He also said his boost started to come on at 2300 rpm. He has a 3600 rpm stall converter. I have a 3200-3500 stall converter. Some have said it is my converter, but I think this guy proved that it is not. Maybe I should have asked him what type of intercooler he has. Let me know if you have any other questions. Thanks.

What im saying and Mike is more than likely thinking is that a few holes in an intercooler is not going to make it not build boost. A small turbo like that will spool like lightning on a 3600 stall holey intercooler or not. Look at my sig. Way more turbo than you and it stalls at 3100-3200 at zero boost/vacuum. At 24 psi its at 4700. 14psi at 3500 is hard to believe also since the converter would have to be a very tight low stall converter which wouldnt allow it to build boost very well which would pull the engine down too much on shifts. With a matched converter id expect to see around 4000 rpm at 14 psi. I too would like to see data logs. Are you are absolutely certain the wastegate is sealing? Get us some data logs to look at so we can further advise. What tach are you using to gve us your stall speeds?

 

[GNRick]

I don't have data logs...not that technically advanced yet. I had installed a block off plate in the wastegate (external wastegate) and that didn't make a difference. I have a VDO tach and also a scan tool to get the rpm's. Thanks.

 

[GNVYUS 1]

Rick made a post that said when he swapped back on the stock intercooler it started to build boost at the line. I'd think the BOV is not staying totally shut which will destroy any and all spool up. I'd like to see the stock intercooler with the wastegate plate on to see if that changes anything now.

His brakes are holding 5psi at 3400 and doesn't have any mods left to do other than shoe adjustments if that even needed.