Please tell me about the hx35





bugs

04-29-2012, 09:17 PM

SO i recently bought a cummins 4bt jeep tj. Im fixing a few things here and there but my knowledge is a bit limited to these engines. I know my engine has the hx35 turbo. Is this set up ideal...The turbo has some slight lag but picks up real well and the boost gets into the the mid/high 20s...Im just curious about the set up. Thanks for any info

ambulancechser

04-29-2012, 09:37 PM

as stated,a bit laggy...but thats just because you have a 12 cm exaust housing on the hx35...on a 4bt,a little lag is to be expected with that housing.depending on the year,you may have either a late model 7 blade (56 x 78) or early 8 blade (56 x 83) compressor wheel...all years used a 58 mm turbine.

a good setup for hiway use and general day to day....what's your egt level at?

bugs

05-06-2012, 08:25 PM

please tell me about the hx35 [Archive] - Cummins 4BT & Diesel ...
And if your hx35 spools quicker then an hy35 it surely isn't stock. ... You can add
more fuel and make more boost before you need to upgrade to ...
http://www.4btswaps.com/forum/archive/index.php/t-23052.html

egts at cruising are at 7k, although at wide open eventually reach a bit over 12K

cjmoon

05-06-2012, 09:39 PM

hopefully 700 and 1200...

dieselcruiserhead

05-06-2012, 10:02 PM

I ran a WH1C which is the equivalent of a HX35 and it was great on the 4BT. This said I'm pretty excited for my HY35...

Thegreengoblin

05-06-2012, 11:25 PM

i ran a hy35 and was very disapointed. i've got a pdr hx35 that i was running and it spools faster, more top end, lower egt's....really nothing makes me want to put the hy35 back on. not exatly sure what the specs on the hx35 from pdr, but i'm thinking it's not a regular hx35....

bugs

05-07-2012, 08:28 AM

sorry it had been a long night yes 700 and 1200...My bad...It has great top end, there is a bit of lag, but overall pretty nice. I suppose it might not be a bad twin set up connected to a smaller one. Has anyone seen a hx35 in a twin set up

fnnissan

05-07-2012, 08:50 AM

Maybe with an hx30..but Imo I think the 35 is to small to be a primary. Id do hx30/hx40 or bigger set depending on power level. And if your hx35 spools quicker then an hy35 it surely isn't stock. They are different but I don't remember what.

gr8shot

05-07-2012, 03:09 PM

You wont want to use an hx35 as the big turbo in a twin set. Its too small for that.

Honestly the hx35 can run up to low the 30's for boost pressure before it gets too far off its map. Obviously you want to intercool it if you aren't already if you plan to push it any harder. Guys push them way too hard on 6bts and they're pretty durable chargers. If you're happy with it right now I would stick with it. You can add more fuel and make more boost before you need to upgrade to something bigger.

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bugs

05-07-2012, 06:37 PM

Its not that I want a ton more power, the jeep moves pretty good maybe just some quicker spooling...

gr8shot

05-08-2012, 11:10 AM

quickest spool time:hx35 twin set up or small single - Dodge ...
the super B will spool earlier/faster than the twins ... Just to make it clear I'm not
looking for a "large single" just a "larger" single. I'd like some ...
http://www.cumminsforum.com/forum/94-98-performance-parts-discussion/425599-quickest-spool-time-hx35-twin-set-up-small-single.html

Are you still running stock timing? If you have it advanced at all that slows your spool up. For quickest spool up you want stock or very close to stock timing.

And also have you spent hours and hours tuning the afc? If so then about the only way to get better spool up is to either upgrade to a billet/batmo wheel if they make them for the hx35 or to step down to a smaller turbo.

Edit: I almost forgot about blankets. You can get a manifold and a turbo blanket. I've read some very good results for adding blankets. They help keep the heat from dissipating and should help spool up quite a bit. Look up Levi's turbo blankets. I think his website is crdpower.com awesome work. He can custom make one for your 4bt manifold or you could do header wrap for the manifold and a blanket on the turbo exhaust housing. He'll have an hx35 blanket in stock.

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