oldmandan-1

Thanks for the responses guys!! I am still a little confused/undecided, but I'll keep reading and learning and hopefully I can figure out which is best for my truck!! Thanks again!!

Jetpilot

RJ,

You hit the nail on the head...... HTT turbo's I have seen use a smaller exhaust housing than a full B-1. Thus the spoolup is better but backpressure is more. For folks looking for lower egt's and more HP this is a big concern. If you can get the air out of the cylinder via a housing that flows well and wastegate excess exhaust then engine runs better.

Doug

sleds

If you can get the air out of the cylinder via a housing that flows well and wastegate excess exhaust then engine runs better.



Hence, That is what htt is doing. If the htturbos are tight on the exhaust side then why is my sledpuller with a 4mm larger inducer than a b1 making 0psi at 65mph?

Jetpilot

Thats a very good question........ Your HP numbers are very close to mine with a B-1 and mach 6 injectors, maybe the HTT sledpuller turbo is different than the ones I have been exposed to. But I would think that you would want some boost going down the road. I never said anything negative against HTT, in fact I said that there are a lot of guys running them that are very happy. But that being said a balance between air in and air out is what is important.

Sleds what is your max boost? Is your trubo wastegated? I have my truck wastegated for around 40-42 lbs, this I have found is a good sweet spot for everyday driving. I can crank up the boost to 50 lbs but only make a tad more HP. Also please don't take the above questions as a flame I am just trying to learn more about what is working for other guys.....

Thanks,

Doug

sleds

No flame taken, I'm trying to figure a few things out as well. The turbo comes wastegated from htt, set by me at 45psi. This is about a 1:1 pressure ratio for this turbo. I've never gone any higher because I don't want to pop my headgasket.

Jetpilot

Sleds,

It looks to me like the turbo you are running is about equal in airflow to a full B-1. Do you know what size exhaust housing it has?

Doug

sleds

It roughly measures 14.77cm and they also clip the exhaust wheel to reduce drive pressure.

penning10

Exhaust should be the first thing you should put on running with any mods, especially with the chip. 4" is good and 5 is better depending on how far you plan to go. The stock 3 sucks *****.

Jetpilot

Bigger is not always better.......

ddestruel

words to live by..............

but then again how much is too much is there ever too much buy the exhaust build the hp to match it

HOHN

Are you sure??? This is from Garrett's site:

Just wondering...

sleds

The quote from garretts site says it all. There's differen't definitions of efficiency. To them maybe it's quick spool up, to others maybe overall flow.

John_P

Danny:

I will probably get introuble for saying this, BUT,.......I ran both the B-1 and KSB-1 on my
96' 12 valve Dodge CTD and IMO they were both terrible. The regular housing B-1 had
bad lag on the bottom; like #1001,1002, 1003......then it would finally get going! So,....
I tried the KSB-1. That turbo was better, but it had a bad "surging" problem when
towing. I got tired of it and went back to my trusted Piers HX-40/16. I know that
the HX-40 will not flow as much air as a B-1 and maybe they are not as tough but
IMO if you run the Piers HX-40 right around the boost levels they recommend (36-45)
they will give you very good service. The HX-40 on my 2002 has been on there for
over two years now with no problems (about 65,000 miles). I run the heck out of
my 2002 and it puts down a little under 500 H.P. and ran the quarter mile last
weekend @ Rockingham, N.C. @ 12.90@105 MPH!

I also realize that they have made changes to the "B-1 Line-Up." So, maybe you
could find a happy medium. But my advice to you would be to "drive before you
buy!" If you went to see "Jetpilot" I bet he would let you drive his. How about
that Doug???

Good luck!

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John_P

Jetpilot

Hey John,

You know I would let him drive my truck!

As John said his trucks did drive bad...... The KS model on his truck was very bad. TAD has made design changes to the turbos and I believe the issue John had have been rectified. But with that being said every truck and everyone's needs and desires are different. Do your research, drive a few trucks and see what works best for you.

Doug

John_P

Doug:

Thanks for the "back-up" Doug!
--------------------------------------------

I had forgotten that Doug rode in my 96' when I had both those turbos on the
truck. And as Doug said, "do your research" BEFORE you buy! IMO, the price
of the B-1's are just too high. I only saw a seven (7) H.P. increase going from
the Piers HX-40/16 over to the B-1 Series; 27 H.P. gain vs 34 H.P. for both of
the B-1's.

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John_P