hey guys i am putting a 89 cummins with a getrag into my RC here is the link to the pics section http://ramchargercentral.com/index.php/topic,126727.0.html    but the first question i have is the motor has a H1C on ti that needs a good rebuild got the kit aand while i was at it i figured i should upgrade while i am at it.. i got a waste gated 12cm housing the other day in a trade would that be a better choice then the 18 that is on it ?? what benifits would i get from the 12 other then fast spool




also what else should i upgrade while the motor is out on the stand ve pump is taken care of   what about feed pump etc....   

JC

yep a full re seal of the motor is on the list so while i have it apart the KDP and bolts will be done as for the LP lift pum ya mean this one ?
if so do we need the line for the first gen trucks?? or just the pump plate and gaskets?

JC

One thing I'm going to do on my install is run a -08 (1/2") fuel supply line from the tank to the lift pump. That little 1/4" line can cause some starvation issues to the LP/IP.


I fixed my typo.
Thanks Joe!!!

ya i think it will work on my application. I am kind of doing a non ic ic hybrid type motor some of the things i am putting on it are ic type parts and some are still the stock ic motor


the 12cm housing i got was kind of a in the deal thing just happened across it figured it cant hurt anything compared to the 18 housing on it now should help me spool up better and get me a bit better milage and power    


so so far my list is

KDP killed/bolts
piston pump upgrade
H1C rebuild/upgrade to 12cm housing
1/2in fuel feed lines
getrag 2wd to 4x4 conversion
electric fan mod
intstall IC rad

JC

I heard alot of guys saw that those electric fans are not capable of keeping the engine cool and can cause overheating issues, not good for a street driven rig.

I dont have evidence to support that... just word of mouth.

the fan i am going to use are from a 2001 grand prix it is a dual fan with built in shroud one fan will run most of the time and the second kicks in when the engine starts to work hard i never had over heating problems with this exact setup on my 91 that reg cab 4x4 pump turned way up PODS and i hot shoted with it      i like the set up plus when i wire it up i have a master kill in the dash so i can shut them down completly if i need to like for a quick warm up normaly the thermostat in the rad dose a good job tho


JC

the electric fans should do fine for a daily driver rig. if you tow heavy expect to overheat.  a gated 12 is a great housing for a 5spd truck imo. my crew cab had one and it was a blast to drive around town. the spool up is pretty quick, i want one for my 92.

The 1994 WH1C has the same exact size compressor wheel and turbine wheel as the later 1995-98.5' HX35, there is no difference.  56mm inducer diameter, FWIW.

ok got the tank out time for the fule line up grade/replace i need to upgrade the suction line in the tankit is the plastic one what would be the best way to do this ??  drill out and install compression fitting? as for the rest of the lines where would be the best place to get 1/2 stell line in bulk to remake the lines?  i can bend them my self no prob from the originals


will alum lines be ok for the hard line section??  i canget good prices on a roll of alum 1/2 line and just bend to match the factory lines with a few mods where i dont like where they run   found a 1/2 inch bulkhead conector with built in check valve would that be a good idea to have a check valve in line for the suction side? 



JC

No prob, there are even a few members running them, although it is mostly used for high-zoot 24v with aftermarket lift pumps. The DSII is pretty universal (and cheap) so it could be used for most anything.

As far as aluminum tubing:

It is used on almost every race vehicle out there, even with corrosive alcohols. Diesel will not harm aluminum from the inside, and it will not rust from the outside.

That does not mean it is the end all, be all fuel line. Use some common sense when routing it. Aluminum is soft and more susceptible to rock damage. I don't mean rock crawling damage, I mean flying gravel. Possibly something as simple as plastic wiring harness loom may offer protection, since the fancy spiral armor like used on brake lines is $$$.

It also work-hardens and becomes brittle, which means support it well, with those soft clamps, and leave some soft line to allow for flex.

I don't have a lot of experience with it, but when bending or flaring, you may consider annealing it with a propane torch to keep it from getting brittle while forming it.

If you have access to large amounts of "grease", most guns are now running it "straight" (svo, straight-vegetable oil), raw filtered oil, no need for processing. There are some small hitches, like dual tanks, selector valves, and coolant fuel tank heaters, but it may be easier in the end for you.

ya i had a processor before that i made i sold it to make a bigger one just never got around to it

biggest problem with straight WVO is the second tank part not much room under a RC to mount a second tank of any real capacity    now on a truck it is easy to do plenty of room on opposite frame rail and where the spare tire sits "rc tank"  i could mount a small like 5 gallon tank to run diesel with and fill the stock 30 something with WVO but i just don't like the idea of straight WVO to many things to go wrong int he system it really is a complet other fuel system to have maintain and worry about heater fluids etc...   leaks and the smell i got from straight WVO was non to pleasing to me smelled like a bad Mexican restaurant and no the oil did not come from one lol  it was just the smell of it being burnt ..  as for bio it is not that bad of a process to do last batch i made was only 89 cents a gallon after it was ready to run so even with to days cost i should be around $1.00 a gallon for it which is much better than the allmost $3.00 average... but it will be awhile before i get to any of this part of it i just dont want to have to redo the whole system again when it is time to run bio or WVO when the time comes


JC