Twin Charged, Compound boost with BW S475 Turbo and TVS 1900 Blower

[kbracing96]

When you get all the bugs worked out, I'm gonna be very interested on how this works out.
My prediction is: the truck will run faster with a turbo alone, but that is just a guess.
Also, I think it'll have decent take off compared to a solo turbo.

Hurry up, we want to see this!

Keep it up!

allen

I agree with you 100%, but it won't have the table top looking torque curve I'm looking for

[farmtruc]

I agree with you 100%, but it won't have the table top looking torque curve I'm looking for

Nailing the throttle off the line without brake boosting it, the tvs will have a better torque curve, but building boost with the foot brake on a single turbo, before hand, it'll be up there as well.
The setup isn't going to make more power than a single turbo setup, just bring it in quicker, like you said.
the torque will feel pretty good though if it works the way you say it will.

[kbracing96]

Simple fix for your boost creep problem,

Move wastegate to the outside radius of the crossover so that
as exhaust starts to make turn up to log header its running right
into the wastegate exit as it hits that outside turn.

Corky Bell goes into this at length in his book.
Enough exhaust gasses just cant make that 90* turn into the w/g pipe.

Would bet $100 that fixes it right away with keeping it under the truck still

I do think the WG is gonna need better/different placement with this turbo because of the HUGE turbine it has and there just isn't enough back pressure with it for it to work as it did in past setups. Just to give you an idea, this same waste gate worked fine with this configuration on Thunder550's truck with a 408 and a Precision T76 turbo, T4 .96 a/r turbine.

[kbracing96]

Nailing the throttle off the line without brake boosting it, the tvs will have a better torque curve, but building boost with the foot brake on a single turbo, before hand, it'll be up there as well.
The setup isn't going to make more power than a single turbo setup, just bring it in quicker, like you said.
the torque will feel pretty good though if it works the way you say it will.

I don't expect it to make more power, actually, I expect it to make less HP per/lb of boost because you have to turn the blower and that in it's self take hp right off the crank.

[zeake]

Its like 3 girls at once. Not necessary but lots of fun.

[phantom405]

^^^classic dude!!! i love it!

[kbracing96]

Its like 3 girls at once. Not necessary but lots of fun.

HAHAHAHA!!!!! That's the best explanation I have heard for what I'm doing yet!!!

[DBRODS]

thats a big turbo!

[kbracing96]

Found my boost creep problem, This is the flex coming off the waste gate




This was a brand new flex coupler and was not like this when I installed it. Kinda weird it did this. I don't know what happened to it, it looks like the lining was to big and them jammed in there and then expanded and folded in on its self. Both ends are still crimped. VERY strange...

[RedHeartbeat]

your coupler developed a hemerrhoid.