twins

[dpuckett]

Doesnt PDR's towing twins incorporate their modded HX35/14 for the top turbo, leaving the 40/16 for the street/ racing crowd? I think the 35 flows more air at lower RPM than the 40. thus helping out the towing crowd.

Daniel

[rbrettctd]

You got it. Heres their chart from piersdiesel.com...

Towing Twins HX35 HT3B 50 psi 450HP - 550HP
Street Twins HX40 HT3B 70 psi 550HP - 700HP
Racing Twins S440 Big Brother 90 psi 700HP - 900HP

[cummins king]

mr ford
hey can you see if u can get another c7 turbo from ur sho that u got urs from everybody around here has know idea about anything and the ones that do dont have anything, im beginning to think u ran into some serious luck finding yours, maby if ur getting twins we can deal with ur c7 turbo

[bgilbert]

He did find a rare s300. s300's are like hx35's if you know anything about 35's, there is a TON of variations, wheel/housing combinations etc. Some work well with a 250hp 3116 or 300hp 3126, c7,c8 Cat, some not so well with a Dodge truck. You might find one with everything you need except it has some odd ball compressor housing/wheel etc. I have come across at least 20 s300's at my local junkyards, but never one like he has, the good one, for the most part.

Just as 171702 is the prefered s400 part number, I would like to find out what the part number for a s300 64/71 .80ar v-band charge outlet is.... Ford, does yours still have a serial number/part number tag? Mine is from HTT and has one of their tags, not the Cat or Schwitzer tag.

Here in the next few weeks I will begin my twin build. I will use a 66/65 .80ar s300 and a 2.9/3.4 1.32ar s400. Just gotta go buy a welder lol.

[ford69557ci]

i have the tag somewhere i took it off the i had the housing polished. the guy with a brain at my local cat dealership said that all the 300 03 to early 04 c-7 had the 64 71 combo and the 3126 is like a 62 71 if its gated and a 62 66 if its not never checked on that though. cumminsking i will try to keep ya posted if the get more in i am lookin for one for don also but the place i go through said it may be a few weeks before they get any non marine c-7s in

[TWorline]

Just gotta go buy a welder lol.

I think you better let Matt do the welding!

[GPSMatt]

whats a good source for Hx40s I am getting an s400 from 88mm turbine 75mm compressor was thinking an hx40 with like a 14cm exhaust housing

[ford69557ci]

if your talkin reman you can get an s300 like mine for the price of a hx40 but most heavy engine core places have good hx40s layin around everywhere i was just at the place i get my stuff from today and they probably had 35 of them you just gotta know what to look for if ya buy used. usually the my core place puts a turbo in the rebuild bin even if it looks and feels like a new one.

[GPSMatt]

would the s300 off of a 300hp c7 work good to spool that turbò what about the hx40 what's a good one of those to look for

[ford69557ci]

my s300 is off of a 300hp c-7 and it is a 64-71 and works great with the little amount of fule i am pushin. If you are wantin to run a hx40 then one with a 16cm wastegated housing would be ideal but are hard to find. I do see alot of non gated 16 and 18 housing ones at my local core place and those would work fine depending on amount of fuel and head gasket situation

[GPSMatt]

I am not stuck on a HX40 just want somthin that is gunna work good with the s400 i described above

[GPSMatt]

oh yeah and I plan on doing a pump with a 14mm head and some big injectors i want to give the ve a chance instead of p pumping it plus itl be fun smoking people in a ve powered truck

[ford69557ci]

thats what i am doin just for fun. i am goin to start with my s300 and an s400 combo but i am hopin with the higher lift cam plate and the larger injector lines and the huge injectors along with the severly ported head with larger valves heavier springs a maxspool cam and 14mm studs that i might be able to spool up an aurora 5k and an s510. that is the start of my all motor plan but the i also have a 6 nozzle port nitrous system in the works and my w/m. think it should make some power?

[GPSMatt]

power? just a little lol

[ford69557ci]

or blow up tryin