Methinks not on the bp. Thats where that basb shines. It spools like a tiny charger, moves air like a medium sized, and thanks to clever a/r size on the turbine side doesnt generate bp. Or at least thats why that charger has been "better" than a 38r for the last couple years. On paper anyway.
BASB on a 6.0L
- Thread starter borsky
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Methinks not on the bp. Thats where that basb shines. It spools like a tiny charger, moves air like a medium sized, and thanks to clever a/r size on the turbine side doesnt generate bp. Or at least thats why that charger has been "better" than a 38r for the last couple years. On paper anyway.
JDub
Active member
Thanks for the mention Derek. On the 6.0 platform I'd definitely go to the smaller 68mm turbine. Whole the 70mm works well for some heavier fueled 6.0 trucks, the 68mm with a .83 or .91 should drive and tow really well with the right tune. You'd have the option to go to a 62 or 64.5 fmw compressors.
04cr450
Active member
My fmw 64.5 lights pretty darn quick, compares to a vgt s3 but pulls much harder (I owned both ) No lag really to worry about. All in the Trans shifting points
borsky
New member
ya but I'm coming from a stg #2 I'm hoping it spools closer to that then a stg #3
I think just for the turbo is like 1300. Until this is tested a little more I'm gonna stick with my 62. If it does that well I'll try it with my compound set up but until then I'm content.
1375. Kinda steep for me
http://www.iratediesel.com/store/buy-online/?slug=product_info&products_id=42
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04cr450
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Not a chance then.. i also came off a kc stage 2 (have it sitting on shelf) , had a stage 3 prior... the 64.5 I in the middle of a 2 and a 3 if that makes any sense. Top end though or high way speeds the 64.5 pulls and pulls. Very fun and cool egts
Powerstroke Man 6.4
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I would like to know this also ,I would also like to add billet S366 to that list.
swinky
New member
borgs new 369 flows around the same as a 472..... on paper.
borsky
New member
Sounds about right, but I'm hoping the basb 64mm will out spool your 64 FMW due to the smaller turbine. I don't expect it it spool like a stg #2 vgt, but close would be nice!
JDub
Active member
I doubt you'll find maps of the aftermarket compressor wheels. Not many wheel producers have the equipment required to formulate that flow data. The 62, 64.5, and 66 stuff is available through Borg however.
On a side note, HTT built a few 64.5/68 combos and they flat out ripped but the boost/drive was a little higher than preferred so it was decided to keep the 64.5 reserved for the 70mm turbine or larger. Bigrpower ran the 64.5-68 on his 6.7 with good results and there is one on a dmax that dynoed 648hp with it.
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borsky
New member
thnx for the info, I doubt the 64/68 makes more BP then my stg#2 VGT though? And if it does I'm sure it'll still be moving ALOT more air. It will be interesting...
I spent an hour on three different bw related sites last night and nothing. Why is that info so difficult to find??
Garrett website:click on products. Click on turbo you wish to view..turbo map..chart with turbine in/ex a/r etc compressor ind/exd a/r lb/min...
Glad I prefer garrett products. Makes it difficult to research a system when everything is all hushy.
That info is the only thing of use to this discussion. And its the one thing that hasnt been broached.
"It spools up great" means different things to everyone. My definition is instaboost means something spools quick. Ive ridden in things that "spooled pretty darn good" and been tempted to say "wake me up when this thing finds some charged air". LOL
Im an observer, but so far I dont see anything tangible. At least, not for me if I were asking about possible upgrades.
I agree with TyCorr. I hear lots of stories of "spooled pretty darn good" and sometimes what they mean is if you slowly roll up to 2000-2500 rpms and then mash the pedal then they spool well.
Depending on the A/R housing and tuning you could see similar EBP to a stage 2 vgt... but it all depends on the tune you run. I think people mis-use, mis-quote, and mis understand back pressure and how it affects turbo/spool-up/longevity. Everyone throws around those words so much... but I don't think they quite understand what is going on. Both VGT and Non-vgt can run higher BP... usually the quick spooling ones will run high BP THATS WHY THEY SPOOL FASTER. Smallar A/R housings will run more BP... but spool faster/sooner. Smaller Turbine wheels will run higher ebp, and spool faster/soon. The only difference is that with a vgt turbo you can "adjust" the A/R on the fly to temporarily create more EBP to spool the turbo quicker and/or make higher boost at WOT. You are also limited in the MAX a/r with a vgt turbo and can only go so big on the turbine wheel.
The comp maps are usually pretty easy to find for any standard BW turbo... but not for the aftermarket wheels. I would be VERY careful with what aftermarket wheel you put in a BW. I have heard from multiple people that some of the billet wheels actually lose power... but they look pretty LOL
Depending on the A/R housing and tuning you could see similar EBP to a stage 2 vgt... but it all depends on the tune you run. I think people mis-use, mis-quote, and mis understand back pressure and how it affects turbo/spool-up/longevity. Everyone throws around those words so much... but I don't think they quite understand what is going on. Both VGT and Non-vgt can run higher BP... usually the quick spooling ones will run high BP THATS WHY THEY SPOOL FASTER. Smallar A/R housings will run more BP... but spool faster/sooner. Smaller Turbine wheels will run higher ebp, and spool faster/soon. The only difference is that with a vgt turbo you can "adjust" the A/R on the fly to temporarily create more EBP to spool the turbo quicker and/or make higher boost at WOT. You are also limited in the MAX a/r with a vgt turbo and can only go so big on the turbine wheel.
The comp maps are usually pretty easy to find for any standard BW turbo... but not for the aftermarket wheels. I would be VERY careful with what aftermarket wheel you put in a BW. I have heard from multiple people that some of the billet wheels actually lose power... but they look pretty LOL
Exactly. I run a small charger for the amount of fuel I have but from idle to 3k rpms the truck is an animal. I know that i run the risk of high bp. I also know that I cant make power way up high and for very long but...with over 500 hp its pretty tough to do a lot of wot driving on the street.
I just don't see the point in anything over my current 62 on a stock injector truck. It literally cleans up every last bit of fuel the truck has to offer. My dyno run was 99.5% smoke free. I don't think I could justify jumping to a larger compressor wheel, not really anything to gain there for me.
I had the specs on what that 62FMW flows kicking around here somewhere, I'll try and dig it up.
I had the specs on what that 62FMW flows kicking around here somewhere, I'll try and dig it up.
JDub
Active member
Nail on the head. Each turbo has it's place and it's completely dependent on the owner, driving style and setup/tuning
I believe that's right. I'm running the same turbo and found the same numbers a little while back.
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