was looking for thoughts and opinions on this idea...or what turbo are you running on your 2F? i see that it is sized for an engine 5-6.5L but still within the HP range of 100-280HP. a ricer buddy of mine told me about these cause he is going to be running one on his car...and apperently they are "cheap" around here...couple hundred bucks
I have one on my '93 & '99 Ram w/ the CTD. I've thought about it too, but modifying & welding to the cast exhaust manifold, I'd be more comfortable having an expert weldor perform that task. I don't know how it would perform on an F or 2F, but on my Rams, you don't feel them spool up till about 35 mph. I would want it to spool up much lower than that. I rebuilt one of mine & had it hot coated.
hhhmm interesting. what kind of rpm's are you running when u hit that speed? i had just heard that these tend to be a fairly quick spooling turbo and dont know much else... as for welding to the cast manifold...im a welder by trade as is my brother in law...so the welding wouldnt be a problem if thats the way i went, however i would probably build some kind of adapter similar to what mace has used on his T4 setup. im kind of looking for something that will be giving me boost around the 1000 rpm range and climbing from there...dont have a tach on my truck but i dont think i go over 3k very often, if at all...maybe ill be the test dummy on this one...lol, have to see. right now im just kind of poking around..getting my 'pane stuff together and might pick up a turbo while im away from the truck at school if i come across one...
The turbo is based on volume, not really HP. The larger motors will flow a considerably larger amount of air and spool the turbo up faster.
A lot of how fast the turbo spools up is based on the vanes within the turbo tho. I'd look into the specs on that exact turbo and see where they lie. And, if you can alter the vanes and get it to spool up faster.
Do you plan to drop the compression ratio to about 8 to 1???
You will also need to do some mods to the Headgasket, and
maybe ring the head too, otherwise it will grenade pretty quick.
Is the goal to still use pump gas?
If you want early spool up, you need to decrease the volume
of the exhaust turbine, problem is the turbo will over-perform
at higher rpm so you will need a blow valve (and a waste gate
would be safe too.)
It's do-able, I've seen a couple of straight-6's on another site
and they are making up to 350hp and similar numers in torque!
the biggest problem with a big turbo as the Holset it's in a engine like the 2F it's sourcing the right exhaust flow to make the turbo efficient .. much more at lower rpms ..
george...having looked into this more and more, i think that it COULD work but...i dont have enough $$ on a student budget to start changing compression ratio's and doing major engine work...so im gunna scrap this idea till possibly a later date, i am however still going to look for a turbo to throw on this thing, probably something much smaller as its mostly a bush truck and i want very little turbo lag...will be looking into other options.
goal on this whole deal is to have a kick ass wheeler...for the fuel system a turbo and propane are what i have planned...MAYBE an intercooler depending on space and how tired i get of wrenching and not wheeling this truck...
Look into thicker head gasket, definitely replace the head bolts
with quality ones like ARP. Put a little money/effort into
the intake manifold. Do you weld? You can build it like an
exhaust but using thicker wall tube to support the shaking weight
of the turbo.
Holset H1C will have low rpm lag, maybe T4? problem would be
high rpm runaway with a good low-rpm turbo. Maybe you could
find a salvage HX35W and get the wastegate to work, then install a blow valve in the intake tube that would go into the
carb box. You'll make good boost at low rpm and the high boost
at mid to high rpm will be bled off.
That's not too much investment, if you got friends who can fab
and would want to build the manifolds, you're there. Hardest
part would be making the flange that goes against the head,
but if you know someone with a CNC laser or jet, you're golden.
Don't give up on it, you can get most of that stuff used or by
fabbing!
nope...no intentions on giving up on it...for sure not even considering it, my bush truck has been apart for over a year now...iv managed to install my SM420, 3spd case, 60 rears into the back end to stretch my wb about 4-6" gotta measure to be sure, also welded up the rear spiders for kicks to see how she will do. did saginaw a few years back...its gunna be a build, got my pane stuff on the cheap and just thought that there are some turbo'd mini trucks around where i am running on pane...would be cool to put something like that in my cruiser.
far as the fabrication aspect of it goes...im not shying away from that, i took my first year welding and did well then decided to go into engineering after a year or so. still have to build my cage, sliders and tube fenders plus do the front springs (i have 60 rears for the front also). biggest problem being that i will be leaving my truck behind when i go to school (pretty close to 1000 miles away). i am going to run some of the numbers and am considering a T4, T3 or T25 turbo's. the good part about this whole deal is that im a mech engineering student...meaning i will/should have access to a full machine shop at school and will be able to machine parts that i can get dimentions for.
just a side note relating to turbos i found what i think is a pretty wicked/helpful turbo site here:
hey ryan...u wanna hang onto that stuff fer a couple months longer? im supposed to be leaving tomorrow for edmonton...dunno if that will actually happen or not but in any case ill be gone in the next day or 2 but back for x-mas yadda yadda. will be sure to stop at the store on the way up to your place...
