On3 Turbo Upgrade

After looking around for a while and talking to some forum members I decided to go with Comp for my turbo upgrade. I highly recommend talking to ProbeCR if you're in the same situation as he was very easy to deal with, offered a great deal, and got the turbo to me quick.

If a new tune is needed I will be using lito to get it dialed in. I also bought an Innovate LC-1 kit.

As the weekend goes on hopefully the rain will let up enough to let me get this done. For now here are some setup pictures...

Innovate LC-1


Comp 6265 billet journal bearing turbo

Congrats man! Cant wait to see how the new turbo compares to the old one. I have that same wideband and like it, good pieces

Good deal keep this in mind for the near future something new is about to happen almost like this at a killer deal. That's all I can say for now.

bobby1110 said:

Good deal keep this in mind for the near future something new is about to happen almost like this at a killer deal. That's all I can say for now.

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o ya?!?

Got the Comp installed and running today. Took about 4 hours of work.



I also installed an Innovate LC-1 wideband to keep an eye on my A/F ratios. The car drives great, and the boost definitely is coming in earlier. I am afraid to get more than a few pounds of boost since I don't know if my tune is going to be ok or not.

At idle I am at around 14-15
While cruising I am around 15
At part throttle slightly in boost I am at around 14

I kind of expected to see a drop in A/F ratio while tipping into boost. If anybody with experience sees this can you chime in?

Def need a retune that comp billet turbo is more efficient and is moving more air everywhere so fuel trims will be off at part throttle and will be lean at wot. My car did the same thign when i first put the billet turbo on. When you rev the car a/f should go into the 11-12 range at idle as well as when you stab the throttle down to go wot.

I figured... The next several weeks will be sad idling around in it! The AFR does drop down to 11-12 when revving it...

Time to talk to Lito!

Lightblade said:

Def need a retune that comp billet turbo is more efficient and is moving more air everywhere so fuel trims will be off at part throttle and will be lean at wot. My car did the same thign when i first put the billet turbo on. When you rev the car a/f should go into the 11-12 range at idle as well as when you stab the throttle down to go wot.

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do you have any more pice of the install. any thing special that needed to be done different then the on 3 turbo

bobby1110 said:

do you have any more pice of the install. any thing special that needed to be done different then the on 3 turbo

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Here is my install thread from a while back...

http://www.s197forum.com/forum/showthread.php?t=57184&highlight=on3+build

I can click a few new pics of the turbo if you want to see them.

This turbo dropped right in with NO modifications.

dsmith658 said:

This turbo dropped right in with NO modifications.

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i thought so.

dsmith658 said:

Here is my install thread from a while back...

http://www.s197forum.com/forum/showthread.php?t=57184&highlight=on3+build

I can click a few new pics of the turbo if you want to see them.

This turbo dropped right in with NO modifications.

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what kind of hp gains are you excepting to get? these might be a dum question, but what size is that turbo?

johnnyv8 said:

what kind of hp gains are you excepting to get? these might be a dum question, but what size is that turbo?

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The primary gain I am hoping for is less smoke out my tailpipe from leaking seals! It's a 62mm. I am also looking forward to quicker spooling which seems like it's going to be there.

dsmith658 said:

The primary gain I am hoping for is less smoke out my tailpipe from leaking seals! It's a 62mm. I am also looking forward to quicker spooling which seems like it's going to be there.

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Ya, i have the same gears as you do, and I can tell you that half your problem. When I have 28" tall drag radials on, the turbo spools so much faster. I have a stock on3 btw.

Yeah I know I have to kick these gears out for 3.55 or 3.31's. Just waiting for the right time to do it financially.

johnnyv8 said:

Ya, i have the same gears as you do, and I can tell you that half your problem. When I have 28" tall drag radials on, the turbo spools so much faster. I have a stock on3 btw.

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you will make more hp and trq for sure with that turbo.

If you dont mind me asking, How much did the turbo run you?

What are the specs on it? t3, t4? exhaust ar? ect.

Off topic, but I'm looking for a 62/65 around .85ish exhaust ar with a large v-band for my diesel.

You're very welcome, and I'm glad to see you're happy with the outcome.

Well it looks like time to put my celebration on hold. The turbo does not spin freely enough which apparently means it is defective. After spending $500 on a tune it's time to tear it all back apart. Comp said they would turn the turbo around the same day.

In short I had my dyno tune and lost significant power going to the billet turbo. The car was significantly slower. When I get things straightened out I'll post my results.

did you prime the oil line before putting it on the turbo and starting the car. if not that can kill the bearings