Engine/Transmission (1994 - 1998) Bigger single or budget twins?

[JHastings]

I need more turbo. My 35 can't keep up and I tow quite a bit. I can peg my 1600* gauge unloaded no problem. I have tried to read as much as possible about the choice of going to a bigger single or a budget set of twins. Seems like the best twin setup for my budget (which is small) is my 35 over a HT3B. I think that I can get into a bigger single for around $1100 for a used turbo and a new down pipe. My question is, can I get a used twin setup for that and would I be happier towing with a small set of twins? Sure seems like the singles are really popular. Is there more maintinence with twins? Are they finiky? I am wide open to suggestions. I don't even know if I have enough fuel for twins or not. Let me know what you think. As far as as growing room, I am happy with the amount of fuel that I have now and at most, I will put in DDP2 or 3's. If you think a single ofver twins, which single?

Thanks,

Jamie

 

[CSchafer]

s300 based turbo's are very popular on here and I sure do like mine but ouch, pricey. If you can do your own fabricating twins would be cheaper and move more air i'm sure but some say they are hard to tune and your always messin with them. If you have to buy everything go with the single. bolt up and go, no messin around.

 

[zstroken]

PM mgarland he has a 97 12V 215 with a 62/12 he can tell you how he feels about his. He bought a used one off of me and called me to tell me how much he loved it.



If you can fab twins can be made pretty cheap.

 

[12V Ford]

Looks like you are trying to make the same decision I had to a few months ago. I researched turbos for almost a year before I decided. The conclusion I came to was that for any vehicle that does a fair amount of towing, twins are the only way to go to get the spool up and cool egts. I did the twins with my 35 and an ht3b. I fabbed up all the piping because of the FORD, and it would be alot easier to fab up a dodge. It cost me $1800 to do and that includes a bigger afe, ats ex man, pre-made hot pipe, 3b, and the pipe and other stuff.



You have plenty of fuel and since you have o-rings already, your set up pretty good. Twins aren't too finicky, and I've found that with about a week of testing at the start, I haven't done any adjustments for over 6 months now. I looked at all the single and I decided that the ps62 is about the only one that would work good pulling, but it was cheaper to do the twins and my pulling is done anywhere form 5000 to 10,000 ft. elevation.

 

[Joseph Donnelly]

I have always run a single turbo, so can't comment directly on twins. However, they take up a lot of space, making maintenance items like oil filters harder to access. There are a lot more joints to leak, and that have to be fitted carefully on welding and final assembly. There are so many good single turbos out there that I believe you can get one matched to your needs. You might look at my article in TDR 54, p. 128.

 

[Jim Fulmer]

For the majority of the crowd the Twins deal is just about gone. I ran them for 3 years and when I built my first set I had too much fuel for the stock turbo and the only other upgrade that had been tested (wasn't sold on the B-1's due to there poor promotion) was a PDR 40 and I was going to have too much fuel for it so I built a 35/3B combo that is still running today on another truck. I'm with Joe on the singles as that is what I now run!



Jim

 

[RyanB]

Alright, here is a question that I am trying to figure out with my brothers truck. He also pulls up here in Ontario with me and is wanting to get into my class and still be able to pull in his current class. My class can run twins with the larger charger not having more than a 3" inducer or you can run a bushing or you can run any size of single that you want! His current class he can run any size single he wants as long as it bolts to the stock manifold flange.



So he is wanting to pull in both classes so there for needs a charger (single) that will fit this discription. He has a 215pump, 4gsk,#10, 370's (that are soon to come out for something larger) 191 dv's.



His current turbo is a HTT 64/14 and it gets hot pretty quick and I don't really see a 66/14 making to much of a difference because I ran mine as a single for a while and it also got real hot fast but I have alot more fuel than he does right now.



He isn't to concerned about Lag... . so what is the largest charger that will bolt to the stock manifold flange???



RyanB

 

[zstroken]

HTT had some 68mm chargers with the Low drive pressure wheels. I would say that or a silver bullett.

 

[EHarvey]

Alright, here is a question that I am trying to figure out with my brothers truck. He also pulls up here in Ontario with me and is wanting to get into my class and still be able to pull in his current class. My class can run twins with the larger charger not having more than a 3" inducer or you can run a bushing or you can run any size of single that you want! His current class he can run any size single he wants as long as it bolts to the stock manifold flange.



So he is wanting to pull in both classes so there for needs a charger (single) that will fit this discription. He has a 215pump, 4gsk,#10, 370's (that are soon to come out for something larger) 191 dv's.



His current turbo is a HTT 64/14 and it gets hot pretty quick and I don't really see a 66/14 making to much of a difference because I ran mine as a single for a while and it also got real hot fast but I have alot more fuel than he does right now.



He isn't to concerned about Lag... . so what is the largest charger that will bolt to the stock manifold flange???



RyanB

i think he would really be impressed with a silver bullet turbo from industrial injection, i currently run one and its awsome, very little lag and egt are realatively low considering the amout of fuel. im right around 1450* really into it. Dont know if your brother would want to spend the money but a cam would help out with those egts a little also. at fall brawl this year that turbo help me put down a 570hp and 1138 on the dyno. hope this helps

 

[Smokin_Monster]

i think he would really be impressed with a silver bullet turbo from industrial injection, i currently run one and its awsome, ...

I second that! Love the Silver Bullet!

 

[MGarland]

PM mgarland he has a 97 12V 215 with a 62/12 he can tell you how he feels about his. He bought a used one off of me and called me to tell me how much he loved it.



If you can fab twins can be made pretty cheap.

Yes i do really like it, it does a great job of cooling and it spools just as fast as the HX35 did. Oh did I say that it is going to be for sale in a couple of weeks as I am going to twins. I put a DD southbend clutch in last weekend and the truck is at J. R. Adkins shop right now getting o-rings and studs. Oo.

 

[WDixon27]

what ya want for it?

Yes i do really like it, it does a great job of cooling and it spools just as fast as the HX35 did. Oh did I say that it is going to be for sale in a couple of weeks as I am going to twins. I put a DD southbend clutch in last weekend and the truck is at J. R. Adkins shop right now getting o-rings and studs. Oo.

 

[RyanB]

So are there any other turbo's out there other than Industrial Injections or HTT that might be larger and still bolt to the manifold? I am sure someone out builds something else. Money really isn't a big deal because he was going to spend it on twins but this will help him out by being able to pull in both classes.



RyanB

 

[zstroken]

I think II might make the ps71 and get it to bolt. Issue being is to get an exhaust housing to fit on the t3 flange, it will be small, and won't allow the engine to breath. The 66 mm chargers will do well in a class that only allows direct bolt chargers. I ran a 66 on mine and was in the top 20 at two major national truck pulls. I think there is more in it too. I was just chicken to throw all of the fuel and crank up the boost.

 

[Smokin_Monster]

I run the Silver Bullet (66) at all the pulls around here and I finished in the top 3 in all but one pull. I would even beat an occasional twin setup. It will only get better this next season when I actually put some fuel to her!

 

[pwerwagn]

You might talk to pius at bell turbo. I understand he makes some pretty wicked stuff. thats what the TS truck runs (or at least used to), as well as some other high hp trucks.

Also doesnt sheid or Enterprise make a fairly large single??



--Jeff

 

[zstroken]

Scheids and I believe EEP 's chargers are not a direct bolt. The issue you get when running a super large compressor and an exhaust housing that bolts on a t3 is restriction.