I have a chance to buy a stock turbo from a 97 truck with 129,000 miles on it from a local guy. he's asking $350. says it has no play and just went to a bigger turbo. Im currently running everything stock on my 92 with the fuel screw turned a round or so. i do tow fairly heavy sometimes but not a whole lot. Is this a good buy? what kind power increase am i looking at and spooling time? biggest question is though, what do i need for the swap? oil lines, intake, and exhaust downpipe differences? thanks guys

 

Barely an upgrade. Compressor and turbine are same size as your 92 H1C, Only good thing it has will be the stock 12cm housing on it but you can find just those for $75 will increase spool up alot over the 92 21cm lagmaster setup.

$350? Crazy......$200 at most.

 

i have an hx35 with the 60mm compressor it does alright. but i have pods too.

 

go straight for the he351 and forget all about the hx35 or the hy35, not worth the time or the money because your gonna sell when you outgrow it. my 35 wouldnt cool my pods with my huge intercooler and it surged over 40 psi. the 351 cools like a mad dream

 

$350 for a used HX35 is a lot. I wouldn't pay more than $200 for a really decent one. If it was off a fresh rebuild, maybe $3-350 but only if it was done by a known shop and not on somebody's workbench. Go with a 351 or an HX40 if you can.

 

yeah thats too much, if it was an HE351 for that price it would be worth it.

 

For the money an HX-35 is a great turbo on a relatively stock truck. ($125-$200) I wouldn't give more than that unless it was perfect. I gave $125 for mine. I like it, but I don't have a whole lot done to my truck. It seems to cool better than the 21cm H1C that I had, and it spools quick. You can also play with the wastegate on it.

Bottom Line: If you are looking for a little performance, get an HX-35 for less than $200. If you are looking to make big numbers get an HE351. The HX-35 Will limit you.

Hope this helps

Edit: You have to move/cut your downpipe back about 1/2-1 inch. Oil lines bolt up, intake bolts up. I did mine in under 20 minutes. lol It will wake up your truck a lot. I couldn't believe the improvement mine made, but it is gonna limit me as I get higher in numbers. lol

 

A friend of mine just did this swap, he had upgraded the turbo on his 2nd gen and had the HX35 laying around. I believe he said he had to adapt the down pipe, and he also had some interference with the auto trans cooler lines. If you truck is a 5 speed you wont have to worry about that part. Bottom line, noticable improvment over stock, but like has been said above, probably not worth and more than a couple hundred bucks at most.

 

You're not feeling the spool up of the HX35 you're feeling the spool up of the 12cm housing that ALSO fits right onto a stock 1st gen H1C there's no reason to pay to get the whole turbo.

 

hey-Hey!!!,
The later 7-blade HX35 is the that offers a flow rate boost over the earlier 8-blade( which is as previously noted nearly the same thing as the intercooled H1C), though for some rare 1-tons it *IS* the same 56mm inducer.

I have a baby H1C on my 1990 and the late HX35 is a substantial step up from that. If you want the same step size from the intercooled H1C you'll need a 351 or super-40.

I believe that the oil feed line is different between the Gen 1 H1C and the HX35. Either use a Gen 2's oil feed or get an adapter. I have not yet seen a definitive description of this part, or where to get one yet...little hep here?

On the price, $300 is about the going rate for a good 7-blade HX35. If it is worth that much to y'all or not that is what they bring. If indeed this is wrong, I make an open offer of $200 for every single good one that becomes available at that price.
cheers,
Douglas

 

I went from baby h1c with stock non i/c housing.(spooled ok, not much for cooling), to h1c compressor housing on stock exhaust housing(little bit laggy but when it lights hold on, lots of haze at WOT and ran hot) to hx35 with 12cm( spooled instantly but was over boosting (55psi) and had lots of egt issues.) then hx40/18wg( laggy as hell, couldnt fully get it to spool (40psi) and it was still around 1550*) and now ive finally settled for hx35/40 hybrid with 12cm housing. (spools pretty fast, surges to 50psi, then settles at 43)
That has been ,my 1st gen turbo experience. Im still not happy but i think ill just go s300 and then ic soon.

 

thanks guys, guess i will prob just wait till i find an he351. i know there are different versions of the he351. which one should i look for and what model trucks do they come on? oh yeah, just what is involved in this swap?

 

HE351VE off an 05-07 5.9 Cummins

 

Yeah I know. The HX has (better) MWE though. Not to hijack, but would an H1C with a 12 cm housing and a compressor upgrade be better than a 7-blade HX-35?

 

hey-Hey!!!,
That would depend on what compressor upgrade. I suspect a 7-blade would be jus' a little bit behind a 60 mm. Does the 60 mm have the MWE slots? Not having them would put it a small step backwards IMO, but probably still *VERY* close to a stock 7-blade. Recall if you will the 8-blade HX40 and the 7-blade HX35 have about the same mass flow numbers, and I bet the '40 is a bit more efficient; more like a 351 in those terms. ...and then there is the super 40 with fewer blades and larger, more efficient numbers.
cheers,
Douglas