triple wazoo turbo

[Don Tanklage]

who makes the latest and greatest turbo for these ve pumped motors?



if a guy was upgrading to some stg 5 inj's and had the pump all done up



curious if any of the big power 1st gen guys will share there experience's?

 

[Don Tanklage]

okay, who's turbo's have you guys played with and not liked...



guess i will try that approach

 

[pepecat]

people have not liked the hx40 because it has the same shaft as an hx35/h1c, but has two big heavy pinwheels on each end, the shafts are prone to breaking on these. It is mainly the big turbine wheel that I think is the issue because a lot of us run the hx40 compressor on our hx35s and its been great.

 

[Don Tanklage]

what kind of hp gain, dec in egt, inc in boost could i expect going to a hx35 with a hx40 compressor from the stocker i have now?



mine is stock w 14cm ex housing



what do you run on the ex side?

 

[dpuckett]

I am currently running a 6 blade, 60mm impellar on a HX35-12 cartridge. I dropped peak EGT about 300deg. Boost increased about 10psi, no other changes to fuelling, etc.



Daniel

 

[Don Tanklage]

is that basically what a dodgezilla turbo is?



any idea of how much the hp inc with 10 more pounds of boost?



what was the max boost before the upgrade?



thanks

 

["Mad Max"]

Stock my truck dyno'd at 135 hp. After adding a PDR HX-35/16, POD's, max'd the pump, and a 3400 rpm spring, then of course one of our Intakes and a full 4" exhaust, it re-dyno'd at 253 hp. Have since added a PDR fuel pin but haven't re-dyno'd. I'm making a max of 25 psi @ 1200* (unloaded, accellerating up hill), and I think I have a boost leak, probably leaky intercooler - should be more psi for the fuel load.

- M2

 

[Greenleaf]

a lot of us run the hx40 compressor on our hx35s and its been great.

Perhaps if the pump is a mild tweak and the injectors are OEM/185's/190's. A highly modded HX35 will not even begin to suffice a 12 mm plunger VE on steroids (say 230 mm3/stroke) with POD,s or 370's. Perhaps if the cylinder head is highly polished/ported in conjunction w/ many other air in/out mods... ... ... ... ... ... ... ?

 

[Don Tanklage]

so what turbo would you use with that combo?

 

[Greenleaf]

I could not say. Depends upon how the truck is used along with other modifications... ...

 

[Don Tanklage]

i meant with that combo, the one you listed



if you were going for 400+ hp and still wanted to be able to tow what combo would you recommend?



turbo, inj, pump mods



assuming the guy already has good air to the turbo and a good ex and a good intercooler



i guess the cooler poses another question - does it have to be 3" everywhere for those type of numbers



thanks

 

[cerberusiam]

What turbo:



Industrial Injection Super Phat Shaft 62\12





Supports up to 500 HP, decent spool, good air in the mid range.

 

[Don Tanklage]

thank you



can you still use the pac brake with that one or will i need to buy one of those really exp 4" brakes? anyone make a brake > 4"?

 

[Greenleaf]

i meant with that combo, the one you listed



if you were going for 400+ hp and still wanted to be able to tow what combo would you recommend?





i guess the cooler poses another question - does it have to be 3" everywhere for those type of numbers



thanks

I don't know Don. I'm not THAT informed. I can get fuel from a pump but cannot use the available HP. And I don't tow/race. Sorry. I took advice from a PRD employee and purchased the biggest/best HX-35. It isn't enough to use the truck's available fuel when I simply press down on the go peddle. Period. I do have three inch inlet pipe and four inch exhaust system but with the OEM charge air cooler.





I would have to say twins would be your best bet. I don't know anything about the Industrial injection Super Shaft. I don't like the looks/complexity of twins, so I stick with the single HX series. :{

 

[Don Tanklage]

thanks



you know what i dont get about the twins...



every set up i see has the bhaf in the rear corner of the eng compartment



if i did one i wo9uld throw that stuff away and build a cool air sys for it



why did you go 3" everywhere if the inlet and outlet of your cooler were 2. 5?



don

 

[Greenleaf]

build a cool air sys for it



why did you go 3" everywhere if the inlet and outlet of your cooler were 2. 5?



don

I don't think they "need" cool air with the twins. I see some with the air filter directly above the exhaust manifold... ..... seriously.



I went three inch because I enjoy building and modifying parts... ... .

 

[Forrest Nearing]

I don't know Don. I'm not THAT informed. I can get fuel from a pump but cannot use the available HP. And I don't tow/race. Sorry. I took advice from a PRD employee and purchased the biggest/best HX-35. It isn't enough to use the truck's available fuel when I simply press down on the go peddle. Period. I do have three inch inlet pipe and four inch exhaust system but with the OEM charge air cooler.





I would have to say twins would be your best bet. I don't know anything about the Industrial injection Super Shaft. I don't like the looks/complexity of twins, so I stick with the single HX series. :{

twins aren't that bad... a bit of a pain to work around, but they work well, especially if you're at higher altitude.



but you guys should really step into the light of the S300 based turbos... leave those old holset HX's alone!

 

[Don Tanklage]

why is that?



isnt the s300 a ball bearing turbo?



i heard the holeset is much more durable than a bearing turbo



is that true?

 

[dpuckett]

The advantage of the S300 is in the blade design sizes, angles, and pitches. They also have a 4' oulet (need an inline e-brake), which will help evacuate the exhaust gasses faster, making more boost and cooling stuff off quicker. I believe a 57mm S300 will flow close to what a 60-62mm Holset HX series will do.



I would go with at least an HX40, more likely a PS 62-64 with a 14 if money were not a big issue, as they were designed for our smaller engines and fast spooling. The reason I wouldnt go for the 12 is that it just seems too small in my mind for good flwo at higher load/ RPM usage, such as towing.



But, the HX35/40 hybrid should take you close to 400RWHP. The guy I got my turbo from said he made 475HP with it on his 2ndGen. Not sure what the torque was, though.



I believe mine is similar to a Dodgezilla.



DP

 

[Forrest Nearing]

the 12 on an S300 will flow a lot more than a 12 on a holset HX due to turbine design.



on a 1st gen, I'd run a 62mm compressor and probably a 12cm turbine.



I run an sps62 which has a larger turbine wheel and a 14cm housing. I'm guessing I'm in the 520-540rwhp range based on my last combo, and it's a little laggy... not bad, I can get things shaking pretty good before 2000rpm in OD, but for a 1st gen's fueling, I think a 62/12 would be pretty nice. Heck, even an S300G like you said w/ the stock 57mm compressor would probably be a nice little turbo!