Comp Turbo and my horrible experience...

chevyburnout1

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
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Berthoud, CO
Burn Down said:
I know the site doesn't mention a restrictor in the 5 and up frames but it fixed mine... I'm also running a -4 feed line. I have also put some sustained miles on it with no issues yet, knock on wood.
IMG_0399.jpg
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You have a wastegate on the large charger? What is it set at?
 
PACougar

PACougar

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Jun 27, 2012
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Burn Down said:
I know the site doesn't mention a restrictor in the 5 and up frames but it fixed mine... I'm also running a -4 feed line. I have also put some sustained miles on it with no issues yet, knock on wood.
IMG_0399.jpg
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I may be a complete crack head, but it looks like the atmo charger is gated right back to it's own exhaust feed?
 
PACougar

PACougar

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Jun 27, 2012
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zf>allison said:
Your looking at the flow of the gate backwards. Should be gating from the feed past the exhaust housing I to the downpipe.
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I completely agree the gate should be bypassing the housing and going to the downpipe. In the picture it looks to me like the gate is feeding back into the feed pipe for the housing.
 
PACougar

PACougar

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Jun 27, 2012
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It may just be the angle of the picture. It looked to me like the bottom of gate is hooked to a exhaust housing gate port, but that may just be the downpipe.
 
Burn Down

Burn Down

Hotrodder
Sep 14, 2008
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Boise Idaho
It's the down pipe lol. It's gated because that is what Nathan at MPI used to do with the original twins, before just going to a bigger housing. This is the proto type set that the LB7 jig was built for... I'm running a 1.0 housing on the 82 and have it (gate) locked completely off, builds about 26 psi and then pushes the gate open. So, needs more spring in the gate but it's fine for the stock bottom end.

Also Nathan (MPI) has piggy backed his oil off of the factory charger on all of his early kits with no issues, journal or ball bearing. I have had this plumbed this way for 50,000 miles with no oil supply issues yet... When I put the built engine in I will move the oil supply to the block, I agree it's a better place.
 
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yellowchevy

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Sep 9, 2010
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Louisburg, KS for now
Burn Down said:
It's the down pipe lol. It's gated because that is what Nathan at MPI used to do with the original twins, before just going to a bigger housing. This is the proto type set that the LB7 jig was built for... I'm running a 1.0 housing on the 82 and have it (gate) locked completely off, builds about 26 psi and then pushes the gate open. So, needs more spring in the gate but it's fine for the stock bottom end.

Also Nathan (MPI) has piggy backed his oil off of the factory charger on all of his early kits with no issues, journal or ball bearing. I have had this plumbed this way for 50,000 miles with no oil supply issues yet... When I put the built engine in I will move the oil supply to the block, I agree it's a better place.
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I'm glad you cleared that up, it was driving me crazy, haha :rofl:

This maybe a dumb question but but could I supply oil to my IHI in the valley and S475 on the side from the oil cooler by the filter? Or do I have to find a second spot for the S475?

Sorry for the off topic Dustin

Yellowchevy
 
Burn Down

Burn Down

Hotrodder
Sep 14, 2008
7,092
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Boise Idaho
yellowchevy said:
I'm glad you cleared that up, it was driving me crazy, haha :rofl:

This maybe a dumb question but but could I supply oil to my IHI in the valley and S475 on the side from the oil cooler by the filter? Or do I have to find a second spot for the S475?

Sorry for the off topic Dustin

Yellowchevy
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Just come out of the Block Oil Gallery there are several plugs along both sides of the engine you could tap off of. The plug has a metric thread 14X1.5...
 
Y

yellowchevy

Well-known member
Sep 9, 2010
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Louisburg, KS for now
Burn Down said:
Just come out of the Block Oil Gallery there are several plugs along both sides of the engine you could tap off of. The plug has a metric thread 14X1.5...
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Awesome, that's good to know. :thumb:
Should help make it clean, valley turbo from the driver side galley and S475 from the passenger side galley.

Yellowchevy
 
chevyburnout1

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
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Berthoud, CO
So I have an update on this! Things have been resolved :thumb: Got a call from Comp Turbo today. Sounds like they got word of my experience and personally called to appologize for everything that happened and wanted to make sure everything was right. That right there is huge to me and I greatly appreciated it! But to add on top they are dropping the price, throwing in a turbo blanket, and I'm getting a new turbine wheel in the large charger as well. Sounds like they needed the turbine wheel out of it for an emergency build. I'm perfectly ok for helping out a fellow racer when I'm still not in a huge rush for mine. As long as I can make it for the NHRDA race on May 31st!

After all was made well I also asked about the oil restrictor delema. The restrictor shouldn't be needed as long as the recommended hose size is used, however if there is a bit of oil discharge then a restrictor like what Burn Down mention should be all that is needed.

Like I said my first two experiences through Comp were great and had no complaints at all. Sounds like it may just have been some poor luck and it was unfortunant that it happened but I'm glad that things have been made right and am excited to get these chargers up and screaming!
 
Burn Down

Burn Down

Hotrodder
Sep 14, 2008
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Boise Idaho
Sweet! Glad they stepped up:thumb: Everyone/company has a bad day.... It's how they deal with it in the end that speaks volumes.
 
chevyburnout1

chevyburnout1

Fixing it till it breaks
Aug 25, 2008
2,368
1
38
Berthoud, CO
Burn Down said:
Sweet! Glad they stepped up:thumb: Everyone/company has a bad day.... It's how they deal with it in the end that speaks volumes.
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Exactly I fully agree. I work in a profession that has the same incidences and understand that even when being professional things can still go wrong.
 
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