Turbine housing

[HellOnWheels]

I have a T63E turbo with the Precision .85 turbine housing and I'm considering trying one of the much talked about .63 Garrett housings.

Do you think it may help some as the track here is only 1000'?

TIA
HOW

 

[tyrod]

TIA, it will depend on your current combo. If your tc is stalled correctly for your turbo right now I would say minimal if any gain. Until this past week I was running a 2800-red stripe in my car. On the street I had to ease into it before nailin it or it would bog severly. On the track it was a different story. I could build as much boost as I wanted on the line (more than I can hook) and the boost would peak within a second or so (28-30lbs). I just installed a pts-3400 and already I can tell, just on the street that it will be fun on the track. If you have heads and cam then I would keep that housing and either focus on the tc or some other possibility

 

[HellOnWheels]

Originally posted by tyrod
TIA, it will depend on your current combo. If your tc is stalled correctly for your turbo right now I would say minimal if any gain. Until this past week I was running a 2800-red stripe in my car. On the street I had to ease into it before nailin it or it would bog severly. On the track it was a different story. I could build as much boost as I wanted on the line (more than I can hook) and the boost would peak within a second or so (28-30lbs). I just installed a pts-3400 and already I can tell, just on the street that it will be fun on the track. If you have heads and cam then I would keep that housing and either focus on the tc or some other possibility

I have a 10.5" 3200 n/l converter that seems to work well on both track and street, but thinking that the .63 may work better on a 1000' track??

The engine is a 030 over 109 block, 224/224 roller, stock heads w/1.77 valves, intake ported and port matched from the upper plenum down to the combustion chambers.

Any other opinions/recommendations?

HOW

 

[norbs]

Yes the cam is way to big and slowing you down. I would go with the .63 since your heads dont flow enough anyway to call for a bigger housing.


Go with a 210 or something roller, just my words of wisedom

 

[HellOnWheels]

Originally posted by norbs
Yes the cam is way to big and slowing you down. I would go with the .63 since your heads dont flow enough anyway to call for a bigger housing.


Go with a 210 or something roller, just my words of wisedom

Nice thought....being slowed down.

I have 1:65 rockers working with the cam which will help flow somewhat I'm sure, plus the heads have been really opened up to take advantage of the big cam and turbo.

So far the car has ran a 9.83 @108.12 at a 1000' track spinning the DR's a few feet out when the boost spiked, as well as other tuning problems. Best I can determine that would equate to a mid to low 11 et on a full 1320' track. If the local track was a full quarter mile I'd be a happy puppy running the .85 but for some reason I believe the .63 would be somewhat better...but maybe not?

HOW

 

[norbs]

Well you would really have to race and do a before and after change. I think if you flowed your heads you would see that the iron heads flow no more than maybe 2 cfm increase from 450 to 560 lift. What do you heads flow?

 

[tyrod]

I wil have to agree with Norbs on the cam. Plenty cars have gone 10's with the stocker. 206/206 would be plenty with your combo. 3200 is probably a little tight for that turbo. It surely is for that cam+turbo+.85. Check my sig. 3400 is very friendly with my stock cam and untouched heads and large housing turbo. It needed every bit of the 600 rpm bump on the street. Thats a serious cam you've got. Speed up the port velocity with a lesser cam or see about 3600-3800 restall or different tc.