parallel turbos

[Goose_ss4]

I think the original post was to run a parallel set-up. One turbo to four cylinders. I think the hx30 come in a couple different forms but all around the 60 the o.p. wanted.

 

[88 Ford]

Here is some stock and popular turbo info that I found.

Turbo---CFM----Racing HP-----Daily HP inducer
HX35----574------420----------330------ 56
HX40----763------560----------440------60
TP38-----767
T66------800-------560----------440-----66
GTP38R--897
B1/S300--900-------630----------495-----62
H2E------868------700----------550------63
HX50----1000-----700-----------550-----63,67
HX55----1050------735----------578-----67
HT3B----1085------770----------605-----76
GT42----1302-----------------------------75
T76-----1350------945----------743------76
HT60----1400------980----------770-----76
B2/S400-1500------1050---------825-----75
GT47---------------------------------------80
HX60-----1550------1085-------853----
TV81----1600-----------------------------85
T88------1750-------1225--------963-----88
HT4B-----1800------1260---------990-----88
Big Brother-1900---1330--------1045-----87
T91-------2000------1400--------1100-----91
HC5A/HX82-2450----1715--------1348----95
T100------2600-----1820--------1430-----100
T105-----2900------2030--------1595-----105

From what I have read, is that using two turbos will effectively doubles the cfm. So if you take the info of the cfm for a two Hx35s, that equals roughly 1248cfm. That is more air than a Hx55. I have seen Hx55 turbos dyno at well over 600hp. Now with a Cat 3208 pump pushing enough fuel and the turbos pushing close to 40psi, I see no reason at all that 500hp isn't achievable. For spool up, a set of Hy35s would be more ideal with their 9cm turbine housings. Hx35s usually come with 12cm or 14cm housings and would spool slower but would provide more top end flow. Also iirc HY35 and Hx35 turbos have the same or similar compressors. It all just depends what you want in your setup and where you want your power to come on at. Like was said before, compounds will provide more boost overall. But if you don't desire an insane amount of boost, parallel twins will work out well for you. They will spool slightly better than a big single and will make similar power to one of equivalent cfm...

 

[S-west]

Ya I could see that with a 3208 pump, I accidentally missed that part haha. But now with that into consideration I would think he would have more than enough fuel for either dual hx35's or a big single. If not still too much fuel. I do not know how those pumps work but I would think it would give way to much at idle and low rpm's before you build boost, I mean the inline pumped 7.3 psd's smoke at idle and smoke even more when on it and they have massive turbos. There are two pulling trucks I know of setup that way.

 

[1mouse3]

from what i have found 300sd 350sd 300td an 320 cdi spool up well with hy35 hx35 an he351ve turbos, that an get around 300hp. so like you 600hp could be got, but I aint going to set my goal that high. I am not looking for an insane boost, I normaly drop the clutch at about 1000-1500. yea I drive like I stole'em, this motor may like that

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I might go with the hx35 since it be the easyest to find, I installed the manifolds I had sitting fliped (driver side is off a van). they dont give to bad of placement, make some stub pipes to t3 an good to go.

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[88 Ford]

I plan on doing a 3208 pump eventually as well. How do you plan on driving the IP? With stock gear using an adapter of some sort or a new gear all together? I figured adapting would be easiest but what do you think? Also I figured something like stock PSD intake manifolds would be easiest to do since that 3208 is so long and wide. Could probably do something like the Banks Twin Ram intake for the Duramax as well. There are quite a few possibilities.

 

[1mouse3]

I would have to make or mod up a timing advance drive gear for the ip, I would need the 3208 cam-to-ip gear an size or tooth count of crank, cam-to-crank an ip gear. I am not for shur of what I am going to do for a intake till I get the ip. a intake with a water-to-air cooler would be nice an save on plumbing up a air-to-air, have it plumbed to all the cylender

 

[88 Ford]

You don't necessarily need to make a timing advance. Cummins guys go without it on their pumps. Pretty much you would just have to set the timing where you want it and go from their. Usually there will be a sweet spot but depending on what you want with your setup, you can set it up to be more torquey or have more top end power.

As for counting the teeth on the gear and getting the right ratio, that is why I figured adapting the stock pump gear would be best for my setup. Adapters are easier to make than the correctly sized gear with the right number of teeth. When do you plan on doing the twins and also the IP?

 

[1mouse3]

I am going for the twins as soon I find the turbos, I got a gtp38 I'm going to post for sale/trade one. I am going to do the ip after I get cam, head gaskets an studs. I had one broke head bolt when I got the motor, I put a used bolt in for now so that got to get done asap. I geuss i'll go with an adapter at first an see how that gose

 

[Goose_ss4]

Here is some stock and popular turbo info that I found.

Turbo---CFM----Racing HP-----Daily HP inducer
HX35----574------420----------330------ 56
HX40----763------560----------440------60
TP38-----767
T66------800-------560----------440-----66
GTP38R--897
B1/S300--900-------630----------495-----62
H2E------868------700----------550------63
HX50----1000-----700-----------550-----63,67
HX55----1050------735----------578-----67
HT3B----1085------770----------605-----76
GT42----1302-----------------------------75
T76-----1350------945----------743------76
HT60----1400------980----------770-----76
B2/S400-1500------1050---------825-----75
GT47---------------------------------------80
HX60-----1550------1085-------853----
TV81----1600-----------------------------85
T88------1750-------1225--------963-----88
HT4B-----1800------1260---------990-----88
Big Brother-1900---1330--------1045-----87
T91-------2000------1400--------1100-----91
HC5A/HX82-2450----1715--------1348----95
T100------2600-----1820--------1430-----100
T105-----2900------2030--------1595-----105

From what I have read, is that using two turbos will effectively doubles the cfm. So if you take the info of the cfm for a two Hx35s, that equals roughly 1248cfm. That is more air than a Hx55. I have seen Hx55 turbos dyno at well over 600hp. Now with a Cat 3208 pump pushing enough fuel and the turbos pushing close to 40psi, I see no reason at all that 500hp isn't achievable. For spool up, a set of Hy35s would be more ideal with their 9cm turbine housings. Hx35s usually come with 12cm or 14cm housings and would spool slower but would provide more top end flow. Also iirc HY35 and Hx35 turbos have the same or similar compressors. It all just depends what you want in your setup and where you want your power to come on at. Like was said before, compounds will provide more boost overall. But if you don't desire an insane amount of boost, parallel twins will work out well for you. They will spool slightly better than a big single and will make similar power to one of equivalent cfm...

88Ford
you seem to know a little more than me, but i also see alot of cummins boys like to take those hx or hy 35's, and either use the turbine or comressor ( thinking compressor for more air) on their tight 35's turbine for more power. pretty legit infor you got there. i am still drooling over set of Holset twins for each side.

 

[Goose_ss4]

Ya I could see that with a 3208 pump, I accidentally missed that part haha. But now with that into consideration I would think he would have more than enough fuel for either dual hx35's or a big single. If not still too much fuel. I do not know how those pumps work but I would think it would give way to much at idle and low rpm's before you build boost, I mean the inline pumped 7.3 psd's smoke at idle and smoke even more when on it and they have massive turbos. There are two pulling trucks I know of setup that way.

i think that is an insane level of fueling. alot of those pulling trucks run really low compression as well that makes them smoke at idel. alot of them fill their blocks for strength, and use a great amount of fuel to help cool the engine. they have been doing this in top fuel dragsters, and race cars for years.

 

[Goose_ss4]

here you go

http://www.ebay.com/itm/HOLSET-HX35...CUMMINS-DODGE-5-9-/161193016563#ht_134wt_1106

 

[1mouse3]

a 3208 636ci is around 200hp na, 250-300np turbo, 300-350 marine an 400+ on twiked marine set up. the v8 p-pump put out like 300cc or more an that get can get me over 1000hp, a lot of air would be needed an comp drop under 14:1. so the cat pump would be a better choice for amout of fuel an fitment, that an they can be found cheeper. here is one I may think about getting but it is missing the fuel cut off an looks to be in bad shape

http://www.ebay.com/itm/CATERPILLAR...Parts_Accessories&hash=item1c3b2f0652&vxp=mtr

 

[88 Ford]

88Ford
you seem to know a little more than me, but i also see alot of cummins boys like to take those hx or hy 35's, and either use the turbine or comressor ( thinking compressor for more air) on their tight 35's turbine for more power. pretty legit infor you got there. i am still drooling over set of Holset twins for each side.

Yeah they will swap them out quite a bit for quicker spool up. Sometimes they will almost put too small of a turbine housing on for their setups and they will surge a lil bit. That can lead to surging issues. But yeah those twins will be awesome. It is rare to see but I have seen them on some other diesels and they run pretty strong....

 

[88 Ford]

i think that is an insane level of fueling. alot of those pulling trucks run really low compression as well that makes them smoke at idel. alot of them fill their blocks for strength, and use a great amount of fuel to help cool the engine. they have been doing this in top fuel dragsters, and race cars for years.

Those are really extreme IPs though. They can be made to fit our fuel needs and what we need.

 

[1mouse3]

doing some looking around, the cat turbo ip's came with a fuel ratio control to adjust for pre-boost smoke

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