The First Comp Turbo CTRX Hubless

[Phoneguy]

What class will you be racing with the 4 bolt turbo? What times are you expecting?

Bryan

 

[TurboWh1]

What class will you be racing with the 4 bolt turbo?

Bryan

4 bolt turbos are welcome in TPB, come join in on the fun!. I think you can also run TSM. Even TSO as well.

 

[Phoneguy]

4 bolt turbos are welcome in TPB, come join in on the fun!. I think you can also run TSM. Even TSO as well.

I run TAI and sometimes TSM. It is tough trying to run 2 classes. I have no desire to run a bracket class , car is not consistent enough to ever run as a bracket car. Still getting the car dialed in with the 3 bolt 7270 and a larger Alky pump but it's getting there. Went 6.20 on a SH!T 60' in Ohio, super fat tune on the hit. The larger Alky pump is flowing a LOT of liquid. Left the tree at 8.8 AF ratio. Still working on tuning around it. Hopefully get it straightened out by Bowling Green.

Bryan

 

[BUICKTIME]

What class will you be racing with the 4 bolt turbo? What times are you expecting?

Bryan

4 bolt turbos are welcome in TPB, come join in on the fun!. I think you can also run TSM. Even TSO as well.

Yeah, I didn't really care about any specific class. I was just building it with the best possible results I can get out of the million parts that I have. I didn't think that I can enter in TSM or TSO, so that is good to hear. I may have the power to compete in a couple of those classes but it is a full weight car with AC (approx. 37-3800 lbs). I just want to and plan to have FUN (and go fastwith class)...

PS, don't want to jinx myself with a time, but believe me she will be on kill if I can get her all wrapped up a week or two before the nats...

Mario

 

[TurboWh1]

Just a heads up for the 4 bolt piece. I assume you are running a V band downpipe? I had to machine the OD of the exhaust housing so the ring could be welded in place. Here are some pics of mine....

 

[TurboWh1]

You will also need to fabricate a oil return line on the 4 bolt. I used all AN stuff, -10 line. Lucky I had some of the fittings and my friend had some other pieces laying around to help figure out correct angles. Built mine out of race car spare parts.

 

[jmendlik]

Will a 3.5 inch non vband DP bolt up w/o issues to the 69/71 Comp Hubless version with 3 bolt .85 AR Housing as pictured or does DP need to be modified in any way?

 

[BUICKTIME]

Will a 3.5 inch non vband DP bolt up w/o issues to the 69/71 Comp Hubless version with 3 bolt .85 AR Housing as pictured or does DP need to be modified in any way?

so, wait. you do have the above Turbo in a Buick 3 bolt and 4 bolt dowmpipe exhaust housing?

 

[BUICKTIME]

Just a heads up for the 4 bolt piece. I assume you are running a V band downpipe? I had to machine the OD of the exhaust housing so the ring could be welded in place. Here are some pics of mine....

thanks for the heads up. I haven't gotten there yet but I do have a V-band setup in my car already and hoping I don't have to change the flange. I'm not sure but It looks like the 3 5/8" flange is proprietary to Comp Turbos while every other turbo is using V-band in 1/2" increments.

 

[BUICKTIME]

You will also need to fabricate a oil return line on the 4 bolt. I used all AN stuff, -10 line. Lucky I had some of the fittings and my friend had some other pieces laying around to help figure out correct angles. Built mine out of race car spare parts.

I have the XRP Oil feed w/filter and drain kit, should work. Just have to confirm for Warranty purposes.

 

[TurboWh1]

thanks for the heads up. I haven't gotten there yet but I do have a V-band setup in my car already and hoping I don't have to change the flange. I'm not sure but It looks like the 3 5/8" flange is proprietary to Comp Turbos while every other turbo is using V-band in 1/2" increments.

Hopefully you will be ok. I had to change mine to work with the GN1 performance 3.5" V band downpipe.

 

[Mr.Spool]

Will a 3.5 inch non vband DP bolt up w/o issues to the 69/71 Comp Hubless version with 3 bolt .85 AR Housing as pictured or does DP need to be modified in any way?

These guys are talking 4 bolt not 3 bolt
3 bolt is a direct fit
I already told you that

 

[Mr.Spool]

I've joined in and received my badass Comp in this week. Looks killer and will be on kill... This looks like one sexy assTurbo. Mr. Spool spec'd this bad boy out for me and delivered within the time as promised. I'd like to call Mr. Spool, Santabut this thing ain't free... LOL
I think the pricing is very competitive compared to the competition but hoping for a little better performance. I'm hoping I will be able to give you guys some data as well if if I can make it to BG 25'.. Until then, you know who to contact for one of these badass mother#@$%.

PS, even the boxing of the Turbo is real nice.

Mario

Your looking real good!

 

[BUICKTIME]

I have the XRP Oil feed w/filter and drain kit, should work. Just have to confirm for Warranty purposes.

Your looking real good!

Mr.Spool, my drain kit ok to run with the Turbo (i've updated my post above with pics).

 

[Mr.Spool]

What class will you be racing with the 4 bolt turbo? What times are you expecting?

Bryan

It's a 1400hp+ turbo on a buick in 4 bolt and we saw initial boost at 1200rpm.
Awesome footbrake combo.
.3 sec it took on a buick to achieve max power level