New HTB2

[Chrisw]

I also have had the surging going on also and have not been posting till I gave paul a chance to fix it. When I had the HTB2 it worked great no trouble with surging, again it worked great just not enough cooling going on for my truck. Then I changed it out for a KillerB2 and it surged from day one. I was unable to build more then 20 psi of boost with out being over 2200 rpm. Once over 2500 rpm I was able to push it to 40 psi of boost without any trouble or surging. Egt were great as was the power. The only thing I didn't like with the KillerB2 was the turbo would bark with just a slight lift of the fuel pedal when making lots of boost. Changed the exhaust housing to a 12cm from the 14cm. Surging pretty much went away but only had 30psi of boost and had high egt. Took the turbo off again and set it to 40 psi of boost. I now have the surging AGAIN this time it starts at 30psi of boost if rpm is below 2200 rpm. It still dosn't spool as great as the HTB2 but it's much better then the 14 cm housing that came on it. If l pull my air filter off tomarrow and that fixes it. what do I need to build?



lmills can you describe what you built a little better for me.



As a side note, out of the 3 different configation I have tried If I can get rid of the surging I fill like I will like this set up the best. It cools very well and spools very well for this large of a turbo. Only time will tell and only if I can get rid of the surging. I will keep you guys posted



Chris

 

[lmills]

All I did was replace all the factory rubber piping with pvc pipe and elbows for now. The turbo end and airbox end is joined wth fernco couplings. This is temporary till I get a AFE torque tube.

 

[jcarey]

Imils, your setup sounds interesting. Why bother with an AFE if you already have someting that works?



You gave me the idea of doing that myself, since I've had two AFEs that don't fit. I'm thinking of using the pvc to make a setup for a BHAH. Then maybe wrapping the pvc in insulation to keep the air cooler. Also with a BHAF you can use a bigger filter, so maybe more air.



I'm not so convinced that the AFE keeps tha air any cooler. It shields the air coming into the filter from engine heat, but the Torque tube certainly gets hot from the heat of the engine and would in turn heat up the air to some degree. IMHO, anyway.



Jim

 

[JDerbedrossian]

Imils, your setup sounds interesting. Why bother with an AFE if you already have someting that works?



You gave me the idea of doing that myself, since I've had two AFEs that don't fit. I'm thinking of using the pvc to make a setup for a BHAH. Then maybe wrapping the pvc in insulation to keep the air cooler. Also with a BHAF you can use a bigger filter, so maybe more air.



I'm not so convinced that the AFE keeps tha air any cooler. It shields the air coming into the filter from engine heat, but the Torque tube certainly gets hot from the heat of the engine and would in turn heat up the air to some degree. IMHO, anyway.



Jim

jim thats why i got mine ceramic coated, i thought about same thing.

 

[lmills]

I'm not so convinced that the AFE keeps tha air any cooler. It shields the air coming into the filter from engine heat, but the Torque tube certainly gets hot from the heat of the engine and would in turn heat up the air to some degree. IMHO, anyway

You would probably be shocked at actually how cool the tube stays. I can honestly tell you with pictures as proof that my factory rubber air piping laid against my heatshield of the manifold for about 3500 miles. It never got hot enough to even mar the finish. So that doesn't bother me. I can tell you the air being charged into the hot side of the intercooler gets hotter than the afe torque tube. If you don't believe that just take your truck for a trip down the intersate then pop the hood and feel both the inlet and outlet of the intercooler. The hot side will be hot and the cool side will be cool.

 

[Chrisw]

lmills If you was to run without any thing in front of the turbo do your turbo still surge? (I. E. no filter or tubing)



mine did

 

[lmills]

I never took that chance. I had thought about it though.

 

[Chrisw]

by by surge

Well my turbo surge is gone for good



Paul put a new compressor wheel on my turbo (killer2b) I don’t have many miles on it yet but I can tell you I haven’t been able to make it surge



The new wheel spools so much faster then the old wheel once above 15 psi below that it’s about the same. Once boost hits 20 psi, boost rockets up with just a sneeze on the fuel pedal. It’s almost like driving with the HTB2 in the upper RPM just a lot more cooling. Honestly it spools that much faster then the old Killer2B that I had so much trouble with on my truck. For some reason my truck didn’t like the old wheel even thou it made 480 hp on the dyno with the Killer2b. I have one more mod I an going to make before I go back to the dyno so I will be able to give you so real numbers in the up coming weeks.



I can honestly say this is the best my truck has ever run to this date. As a side note EGT seem to be the same with no change.



Keep in mind my truck would go into a very bad surge if the RPM was below 2300 and boost was over 20 PSI. That part of the rpm was unusable for me to try and make power. So it could be that this new miracle wheel on my truck wouldn’t have the same effect on your truck. Also I seem to be making less smoke.



Take it for what it’s worth but I love the feeling of driving a diesel engine with out the lag I used to have. It is so much fun I am going go and put some more miles on it so I can bring back some hard numbers.



Chris

 

[WDimig]

hey guys i just put on the killer B2 with the new compressor wheel and 12cm2 housing and it seems like it is doing the same thing that you all are describing. what im exprencing is that it surges or barks when i hit OD and ive got a tight converter so the engine rpm dorps dramatically. once in OD it will spool normally untill about 30psi then it starts surging again. is it because the turbo is trying to force too much air into the engine? ive talked to steve over at high tech turbo and told him about the problem and he's thinking it might be a flow issue, or the turbo may need a bit more time to break in,(only got about 250 miles on it). so i told him ill give it a week and get some more mileage on it and see if the surging goes away.



wes

 

[Jetpilot]

WDimig,



This seems to be a problem with this turbo..... I know a few guys have changed the flow path into the turbo and helped relieve this issue. Its not trying to force too much air into the engine, many guys are forcing a lot more air than that into the engine without the surging. Hopefullt HTT will be able to find out what the problem is and correct it.



Doug

 

[Cooker]

Just curiouis.....



Is the surging more common on a 12v or a 24v? Auto or stick?



If I had to guess I would say a 12v would be more prone to the issue and a tight TC auto probably would not help puch either. JMHO.

 

[moolie]

i'd be surprised if it does go away i mean it's inconsistant but mine still does it still. Some days worse than others but when i had lazr bob fix the fass plumbing into the tank then it's not as bad and not as often but it still has it's moments and i can't understand what's making it bad one day and then later the same day it won't bark for nothing it's weird

 

[Mad Bomber]

what one are people running with a ETH (housing,compressor wheel)?

 

[JaMan]

62mm with a 12cm housing and it made 466hp, at 47psi and it cools great spool up is FAST!!! and it will bark some when I shift but Paul said it won't hurt it at all and to keep the set up if it spools and cools good for me, regardless of the bark, WOOF!!!





Jared

 

[mattymac]

does anyone know how many CFM the killer 64 will make?

 

[Mad Bomber]

62mm with a 12cm housing and it made 466hp, at 47psi and it cools great spool up is FAST!!! and it will bark some when I shift but Paul said it won't hurt it at all and to keep the set up if it spools and cools good for me, regardless of the bark, WOOF!!!





Jared

Do you tow with this set up? if so how big?

 

[JaMan]

haven't got to tow yet as jeep is broke and stuck in the barn, and no other large loads but can imagine it will tow great.

 

[driverno8]

has anyne done the htb2 and changed to the ats exhaust manifold too. Is it worth doing all at once or will it even make a difference? waste of money? worth the money? installation any different?

 

[Jeff_K]

I have heard that the ATS manifold flows a lot better than the stock one, so I wouldn't think that it would be a waste of time or money. I would, however, consider a B1-04 turbo as well before you decide on which one you are going to get. I just put one on and it is basically a direct bolt on. No changes to the downpipe or intercooler connections (you have to rotate the intercooler tube a little but thats it). This turbo has no "surging" problems that the HTB2 seems to have and will flow/cool as much if not more than the HTB2. There are a few guys on here putting down some big HP with the B1-04 and keeping EGT's relativley in check.

 

[SRadke]

has anyne done the htb2 and changed to the ats exhaust manifold too. Is it worth doing all at once or will it even make a difference? waste of money? worth the money? installation any different?

I put on an ATS at the same time as my turbo. Since it was at the same time I can't say how much diffrence the manifold made but it's without a doubt a better design than the stocker. It also made the turbo install easier to be able to bolt the turbo to the manifold on the bench and put it in as one piece.



-Scott