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2G BLT done still slow spool high IntTemp no knock

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CiscoBite1Time

20+ Year Contributor
303
8
Jun 26, 2002
milwaukee, Wisconsin
I recently put on a new 20g turbo from JusMX with a FP manifold. I've done numerous boost leaks and what I found i fixed. Still get slow spool. I've also checked for exhaust leaks and found nothing pre/post turbo. I'm only running ~ 20 psi due to running a OEM untouched 1g BOV.

I've noticed my intake temps are way hotter with this setup compared to my previous turbo setup (turbonetics 50 trim with tnetics exhaust mani). I'm sure the 90 degree day and humid weather didn't help when I decided to mess with the car over the holiday weekend. I'm seeing peak boost at ~ 4.5K RPM give or take. It's slow. Turbo feels non existent. I did my latest BLT this past Sunday. However disconnecting my air hose from the tester I lose all pressurized air in matters of seconds. I thought it should slowly leak out. 23psi to 0 in 5 secons or less. I also checked my timing and I'm at 5*. I'm not reading any knock from what I remember from my 3rd gear pull. For the sake of checking I felt around for my knock sensor and I do not feel any goo/gunk on my knock sensor.

I'm thinking I can try to advance timing with my CAS and timing light. Or else adjust my DA table. My plugs are new BRE7ES gapped at .23. My wires are rather old though. Also plan on wrapping my FP manifold since I have some DEI exhaust wrap laying around until I can properly coat it or find a blanket.

I don't have my laptop at work but I will crop it and post my latest log tonight.
 
Last edited:
When i do a blt it doesnt hold it for a long time. You are testing to 23 with an air compressor im guessing? Go look at your boost gauge when spraying with soapy water and make sure its over 20. I would test to 25 if i were you. If you need to, take off the front bumper so you can get to thecouplers and whole intercooler. If not wastegate check your bov. It could be releasing air.
 
it's a TD06SL2 housing

When I do my BLTs I normally only read PSI off my boost gauge. I've done it up to as much as 25 before. I left it at 23 this last time because of course as soon as I hit ~ 20 psi the BOV leaks. I really think I may need to either dodge mod my BOV or find a way to seal the adjustment screw on my Greddy Type S BOV.
 
I second the boost leak somewhere. If its a tdo6h housing you will be pushing a lot more air and thus the need to secure the vacuum leaks also readjusting your duty cycle if its a ebc or adjusting the screw settings if its a mbc
 
Here's a 3rd gear pull starting at about 98 sec mark. Couldn't pull more due to catching up to traffic on the highway.
 

Attachments

  • log.2015.09.09-01 3rd gear pull.elg
    137.5 KB · Views: 32
Over the weekend I adjusted my internal WG. I also wrapped my FP manifold since I had some DEI wrap from way back. I didn't get a chance to do another BLT just yet. No difference.
 

Attachments

  • log.2015.09.14-01.elg
    23.8 KB · Views: 28
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