Latest B-1 Bomber Turbo R&D Performance Specs

[BPINE]

Thanks for the info Kurt, The best I have been able to get is about 62mph on a 6% + or - a bit 1300 degrees with a CGWR of about 23k at about 75 oat. I might have some new data on the H2 next week. I thought I won 10g's last night on a lottery ticket but it was a gag gift so I guess I will have to wait for the B-1 for now.

 

[KWIKKURT]

Originally posted by CAnderson

Kurt, this is looking very good. If that wasn't the fastest spooling housing in your test, what is the fastest spooling exhaust housing going to do to those egt numbers? How much more lag is there going to be in comparison to my stock hx 35/12cm with the smallest housing on the B1?

CAnderson, These test results are with the fast spooling housing. CUMMNSTRKN has the bigger housing that I began R&D with. It still spooled kinda ok but would not boost to the levels I needed on my 400hp setup. I could not build enough drive pressure. It showed up in the R&D as only 22-24 psi drive pressure at 36psi boost pressure. I expect it to have 1:1 pressure ratio at 50 to 60psi. . It is Good for the 500-600 HP Guys.



The smaller housing is working out great. I think it will be the ticket for a wide range of HP... . From 325? to 550? There will be more data as more get installed in the next week. I am putting one in Yogibears towing rig this next week. And one is mailing out today.



Kurt

 

[Cummins Corvette]

This sounds very promising. I still want to know how the lag will compare to my stock turbo, hx35/12 though. I think that the lag now is pretty bad, Bill K. told me it would be that way. I still like the lower stall converter, just looking for any way to have the best of both worlds.

 

[Cummins Corvette]

any more info yet?

 

[Jetpilot]

Anything new???

 

[R.ebel]

B-1 turbo question

KWIKKURT,

With the drive pressure of the B-1 turbo typicaly running lower than the boost pressure, is the turbo more prone to barking if you lift out of the throttle to quick? Just curious. Nice R&D work

 

[KWIKKURT]

Re: B-1 turbo question

Originally posted by R. ebel

KWIKKURT,

With the drive pressure of the B-1 turbo typicaly running lower than the boost pressure, is the turbo more prone to barking if you lift out of the throttle to quick? Just curious. Nice R&D work

Sorry for the delay. . I am now back at work!



With the smaller housing the drive pressures are close to 1:1. I haven't compared the numbers exactly because I had to replace the gauge with a different one and want to confirm its accuracy first. When I changed the airbox to a free flowing style I can bark it if I shift fast. With a K&N in the stock box I was sucking the "Filter Minder" down to 100%. After driving it for awhile I found that by just slightly slowing the lift of my foot it doesn't bark even at 44psi and a fast shift. According to my TurboGuru he says that Barking will not hurt the B-1. I have seen a B-1 dissasembled and it is HeavyDuty. The Turbine shaft at the friction weld (Shaft to Turbine wheel) is around 3/4".

 

[Cummins Corvette]

Kurt- How will the lag be compared to my hx-35/12? If I am going to spend anywhere close to as much as you want for that turbo, then I need something to compare it too lag-wise.

 

[BPINE]

Well the H-2 is in and works very well empty but is a little slow when towing. The overall boost is about the same as an HX-35 with a 16 at 1300 degrees while pulling a 6% grade, about 32 psi which is not exactly what I was looking for. It seems to spool up OK but smokes much more on the bottom. Without the trailer the turbo works very well and is very reliable, I figure if Adam can't blow it up it is going to be hard to brake.

I am going to do some tuning on the AFC and injectors to see if I can clear up the smoke on the bottom then I will go from there. These darn 12 valve trucks just move too much fuel, opps sorry Joe there is no such thing as too much.

 

[RHARVEY]

Definition Please>>>> 'Turbo Barking'





Thanks

Rick

 

[LSMITH]

Rick, check this out https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=31766 some of us were pretty close but Rusty set the record straight with the best explanation I have seen yet.

 

[CUMINNTSTRKN]

Originally posted by CAnderson

Kurt- How will the lag be compared to my hx-35/12? If I am going to spend anywhere close to as much as you want for that turbo, then I need something to compare it too lag-wise.

i don't think any single turbo will spool as fast as the hx35-12. maybe kurts kwik spool. before you try and move up to either the b-1 or a h2e hybrid you are going to need a lot more fuel. imo. the more fuel you have the better the spool up.





jim

 

[KWIKKURT]

Originally posted by CAnderson

Kurt- How will the lag be compared to my hx-35/12?

CAnderson, It has been a long time and a Dozen? turbo changes since I had a Hx35/12 on my truck and its a 24V 6 Speed. I doubt the B-1 with its Big Shaft and Wheels that it would spool up as fast as a Hx35/12.



Having said that I hope to have a B-1 installed on a few autos in the next 30 days or so. I am always looking for ways to improve the response / driveability while also lowering EGT's so they are no longer a worry for Bombed trucks especially for those that Tow. I am very pleased with the B-1's performance. But that does not mean I done trying to make it even Better!

 

[Cummins Corvette]

I think that I have enough fuel because I can peg my 1500 degree pyro in a few seconds. Not healthy.

 

[KWIKKURT]

That means you need more Cool Air / Intake charge. What kind of air induction do you have??

 

[CUMINNTSTRKN]

Originally posted by CAnderson

I think that I have enough fuel because I can peg my 1500 degree pyro in a few seconds. Not healthy.

you have enough fuel for your hx-35 but if you want a lot bigger turbo to spool the same as your stock one you will need more fuel. this is a major problem with a tight trq converter. it's hard to have everything without giving up something.



jim

 

[Cummins Corvette]

I still have the stock paper filter. I will be going to a BHAF as soon as my filter minder moves. That thing has not moved at all so far. I have had the stock filter since I bought the truck, now 11k on it. I know that it would help a little to put the bhaf on, but not the 600* drop that I need. That will take a new turbo, air filter, and exhaust. The only thing about the bhaf that I don't like is the lack of cold air intake. I don't want a psychotty because I will never use a k&n again. I think that those things are crap. If I want flow like a k&n, I will just run no filter and save 60 or70 bucks and get the same thing.

 

[LarryB]

CAnderson

If you want cool air, remove the hood.

 

[KWIKKURT]

CAnderson, I would not suggest a BHAF because I have seen over 100 deg rise in Turbo intake Temps. This will raise EGT's not lower them. It may help in some ways because of the increase in flow but it is the wrong direction if you want the lowest EGT's possible.



As to the scotty air I believe that scotty recommends the AFE filter. They have come out with a better flowing filter then the K&N and I think they are cheaper.



When I changed to the scotty air system (from a BHAF style)on my truck my MAX egt's dropped by almost 200 deg's. and the turbo compressed air temp dropped over 100 deg's.

 

[Cummins Corvette]

Ok. Where do I get the psychotty with the AFE filter? Does the AFE filter out the fine dust better than the k&n POS?



ps- is it psychotty or scotty?