turbo question ? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 19 (permalink) Old 12-26-2007, 11:24 PM Thread Starter
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turbo question ?

ok yal this might sound like a dumb question but i dont know much about cummins i have an 01 wat turbo do i have on my truck

97 f 250 xlt 4 inch lift, 36/15.50 tires, hypermax kit with sledghammer turbo, swamps 355mm injectors, compitition fuel system,bdp stealth pumps oil system, head studs, custom 4 inch exhaust, edge evo and ez stack
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post #2 of 19 (permalink) Old 12-26-2007, 11:50 PM
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If its a manual trans you have an hx35, if its an auto you have an hy35. The Hx is the one you want to have.
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post #3 of 19 (permalink) Old 12-27-2007, 12:01 AM Thread Starter
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ok i have the hx i found a hx40 an hx50 and a hx60 would any of those be good to put on my truck for more performance

97 f 250 xlt 4 inch lift, 36/15.50 tires, hypermax kit with sledghammer turbo, swamps 355mm injectors, compitition fuel system,bdp stealth pumps oil system, head studs, custom 4 inch exhaust, edge evo and ez stack
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post #4 of 19 (permalink) Old 12-27-2007, 12:40 AM
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It really depends on what you're shooting for. None of those turbos are ideal, and the 50 and 60 are too big for single chargers. The 40 would work and we ran a pdr hx40 on an 01 and got it down into the 12's, but there are better chargers out there. If you don't have the fuel for the 40, you will hate life with it. I would say at least a box, a fuel system and 120hp injectors and it should be alright.
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2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

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post #5 of 19 (permalink) Old 12-27-2007, 12:52 AM Thread Starter
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i no there not the best im jus on a budget i cant aford 1500 for a turbo i can get a hx40 for a few hundred bucks

97 f 250 xlt 4 inch lift, 36/15.50 tires, hypermax kit with sledghammer turbo, swamps 355mm injectors, compitition fuel system,bdp stealth pumps oil system, head studs, custom 4 inch exhaust, edge evo and ez stack
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post #6 of 19 (permalink) Old 12-27-2007, 05:18 PM
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Just be aware the HX40 uses the same size shaft as the HX35 and they are known to break fairly easy on the 40. Not saying don't use it, just keep in mind to be easy on easy off of it.
post #7 of 19 (permalink) Old 12-27-2007, 08:11 PM
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I'm curious how much pyro temp are you making?

If your making above 1,200*F then yes a turbo would be the thing to do...

I'm not a knowledgeable person about turbo's but I do understand that more boost pressure the cooler the EGT will stay. But in a trade off of lag and smoke. This depends on how big of a turbo you get...

The other factor above 45-50 PSI you take the risk of blowing the headgasket. So studs might be a good idea soon...

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post #8 of 19 (permalink) Old 12-27-2007, 09:01 PM
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Boost pressure doesn't always keep egt's down. Fuel set up and charger really need to be matched to each other. You can run a lot of boost out of an hx35, but once you pass about 32lbs, the air is getting too compressed in the compressor housing and starts to get hot, and is less effective at burning the fuel you have. I'm not as familiar with the compressor mapping on the hx40, but I would imagine that once you get above the mid 40's you will be pushing hot air with that too. Spool up also really comes down to Ex. housing size, turbine size, the angles on the turbine and compressor wheels and a lot of factors. An hx40 should hold you with decent EGT's to about the 400hp mark, if you're getting up near the 500hp mark, I would expect to see temps of nearly 1800 degrees.

Also like bouncer said, they are known to snap shafts. So just be aware of that and don't bark the turbo hard and you should be fine. Its not a bad charger, just not the best one by any stretch. If you have some decent fuel, it won't be too bad to drive either.
Sean

2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)
www.totalperformancediesel.com
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post #9 of 19 (permalink) Old 12-27-2007, 09:21 PM
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yeah would be more concerned after you get it on about the amount of boost you push ill be the first one to tell you if you get near that 45-50 psi range you will be taking the head off of it. especially if its cool out when you are running the hell out of it. mine came apart at 47 psi at 38 degrees outside. cold air is hard to compress lol. but as far as the turbo goes there are guys around me that run those and they are a little slow getting spooled up but do work well with the right amount of fuel. before you bolt that thing on with 100+hp injectors realize that you are crossing a line and once you get on that side of the line there are many dominos ahead.

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post #10 of 19 (permalink) Old 12-29-2007, 05:21 AM
 
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Twin turbos?

I have a stock 01 cummins, I want to put twin turbos on it.What do I have to do for everything to run smooth??
I just want some more TQ an HP: I will be runnin it on the road often.
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