Holset Turbos

[joeracer321]

The header puts the turbo in the stock location, so yes it would be in the same location with the stock manifold.

 

[1029TSG]

Here's one that fit with the stock manifold and a little "hammer mod". Of course he dented it too more than he needed to.

 

[DSMnewbi]

Enough with the pics lets get some vids!! BTW.. Is that the STOCK downpipe on that thing (1029tsg)?

 

[djsven]

Hi,

If you are afraid of fitting near the water pipe, you might consider the SBR cast manifold.
They have a thicker flange. As soon as I have my HX40, I will let you know how it fits.

Sven

 

[1029TSG]

Actually that was taken with the stock O2 elbow but an RNR system was installed a few days later.

 

[98talonAWD]

I have the SBR cast manifold along with the Holset( before i sold it). and it didnt help with the spacing that much. i had to crack the hell out of the water pipe for it to even fit with the holset. My SBR T67 i have now... i can't even use the water pipe on it with there cast manifold... im gonna have to drill and tap the water pump and water neck for AN fittings.

good luck with the Holset though... i would have used mine to see what it was like, but i needed a bigger turbo.

 

[PSI TSI]

So I guess my tdo6 mani spacer is a good plan. Unless Im going to run into rad clearance problems now. What is the overall diameter of the Holset comp cover?

 

[joeracer321]

So I guess my tdo6 mani spacer is a good plan. Unless Im going to run into rad clearance problems now. What is the overall diameter of the Holset comp cover?

I don't think radiator clearance will be a problem even with your spacer. Though depending where you have you fans located, it might become an issue. Look at my pics, I have plety of clearance. I doubt you will have any problems with a couple of slim fans.

 

[tbird]

Quick question....... earlier I read in this post that the hx40 is comparable to T70? in other post I read a t70 is way to big to even spool? can anyone clear this up? debating between the hx40/t70

 

[98talonAWD]

A Holset hx40 is not comparable to a T70. and plus a T70 comes in a full T4 frame exhaust housing which is usually around a .81AR-1.15AR or something like that.


TBIRD: Ipo Propane Injection Custom Water Injection Hks SSQ Bov Dejon Modded smic 2 1/4 lower pipes.

Why are you looking at a turbo of either of those sizes... if your mod list is correct in your profile you need atleast a built motor and head work to be within efficiency of a T70. :thumbdown

 

[tbird]

my profilew hasnt been updated in months, the car is completly tore apart, the short block now has ross forged pistons, eagle rods, knife edged crank, no balance shatfs, head has port work, sheet metal intake, hks272 cams....... little bit different than what i have listed.... still have ipo propane kit... looking for 720 injectors, new fmic, ect.....


the t70 I was looking at had a exhaust of .84 what is it on the hx40

 

[1fastlaser]

the hx 40 seems like it would be more compared to a gt40,or a gt 35 with the gt40 wheel

 

[98talonAWD]

The Holset exhaust turbine housing if somewhere between a .48-.63 AR. Bullseye wouldnt tell me when i bought it from them( because people will copy there design). the bigger the AR, the bigger the volute and the slower it will spool...but will have better top end flow.

if you wanted to use a Holset i would have reccomended using a high compression piston ( 8.8:1-9.0:1) due to the fact that it will help spool up. apparently on a 2.3L stroker (8.8:1) the holset didnt see 20psi until 4200-4500. ( according to Daniel at DSM-Performance).
So 20psi on your setup should be around mid-late 4K's. thats pretty late for only 20psi, it may not sound that bad because you'll have good HP numbers, but when you roll next to someone that has a 16g from a low RPM roll and he walks you 3 cars out by the time you hit boost.. you'll understand.

and a T70 with a .84 housing is gonna be interesting to see when you spool.. especially if its a divided exhaust housing. You might want to look at a 60 trim or a 60-1 with your setup... or a ball bearing GT30-GT35R. why use a turbo thats too big for you.. i mean its cool to say that you have a T70, but will you be happy with spooling a T70 at 5200 ish?! and then having to shift at 7500-8000. Thats roughly 3000RPM of usuable boost. i'm not trying to flame you.. im just simply trying to tell you that its too big and you could do much better with a smaller setup.

My setup is borderline full race car. stroker, major head work, custom cams(bigger than 272 combo) and i run a SBR T67 modified. So if you need a T70, then i should be looking at a T88 then right?!

 

[pianoman]

I was under the impression that with a tubular o2 housing, aftermarket exhaust mani(sbr...dnp...etc.) full 3inch exhaust, that you would get spool by 3800-4100rpm???

 

[98talonAWD]

Thats not what they told me. i dont see how.. its a P-trim full T4 exhaust wheel. i can't see getting 20psi on that thing with a AR somewhere around .48-.63 anytime before 4300.

im not saying that it can't happen, but its definently hard to swallow.

 

[tbird]

Hey im not takin anythign as a flame I fully understand everything you told me.... I was jsut simply curious about the size of it compared to the hx 40.... yeah i will be shifting pretty high..... might not have the best street combo at all.. but I will be using 50-75 shot to help either turbo i chose spool... since im still running 2.0... i was figuring the t70 to spool 20psi around 4800-5000 with the juice..... so i wasnt to far off. thanks for your input.

 

[tbird]

p.s if i go with t70 it would be with bulls-eye housing and external gate

 

[tbird]

one more thing this will be on an auto car.. built trans, and 9" race converter.... so through the shifts i should be sitll holding the boost.

 

[unlikely hero]

Any update on the HY-35 housings? I just picked one up from ebay and found out the guy sold me the HY instead of a HX, damn ebay.
=Jason-

 

[1029TSG]

We had to temporarily put that project on the back burner to finish some more pressing issues. We will start working on it again the week after next and I will update you then. Thanks for your patience.

 

[Mirage2LTurbo]

Thats not what they told me. i dont see how.. its a P-trim full T4 exhaust wheel. i can't see getting 20psi on that thing with a AR somewhere around .48-.63 anytime before 4300.

im not saying that it can't happen, but its definently hard to swallow.

.48 and .63 are T3 housing ratio's. T4's use .58, .68, etc. I'm running a P Trim T4 .58 housing and getting full boost by 5000 easily. I was getting 15psi at 4700, but my injection was out 180* and I never looked at spool time since then. I'm sure it picked up 500rpm spool easily.

 

[2fast420a]

.48 and .63 are T3 housing ratio's. T4's use .58, .68, etc. I'm running a P Trim T4 .58 housing and getting full boost by 5000 easily. I was getting 15psi at 4700, but my injection was out 180* and I never looked at spool time since then. I'm sure it picked up 500rpm spool easily.

Just looked at your time vs your mph and holy crap! Whats up with that?

 

[spoolinawd91]

494whp on 25 psi 549whp on 20 psi these are boost numbers you can run on pump gas with good tuning I would say you could get some great whp on pump gas with these turbo's I'm sure both of these dyno's were on race gas do they have any pump gas numbers? Also let me see if I have this MWE groove stuff right. Say the turbo without it I'm flowing 650cfm or 45.5lbs/min with MWE (added 10% more airflow) I would be flowing 722cfm or 50lbs/min, that a huge gain.

 

[joeracer321]

I installed the hybrid today and I have some very initial testing results for you guys. Throttle response was surprising. I do not have a tune on it at all, it is very rich with the a/f ratio hanging around the mid 10's under boost. I was being easy on her in today. I let it idle for a while and drove it around for a few miles and I let it go into boost, it spiked right to 23 lbs. I found that I had mixed up the lines to my boost conroller in my anxiousness to drive the car. After that it worked how it was supposed to I can tell you I hit 23 lbs of boost at about 3900rpms! I was really surprised how fast this thing spooled, even with no tune. Give me a couple more days and I will have some good data and logs for you guys to check out.

 

[Mirage2LTurbo]

Just looked at your time vs your mph and holy crap! Whats up with that?

Stock trans + Kuhmo 712's + open diff + 9500rpm shifts = teh Lose.