60/71 twins?

MorganY · Feb 21, 2013

SSpeeDEMONSS said:
Maybe I just want to do twins. What turbo is going to give me 5-550 and quick spool?

Garrett

probably getting paid at work to post this from my bionic

Well there are VGTs out there that can.....but the probably wont last any longer than 20,000 miles. Haven't seen a huge vgt able to do that yet

TooMuch03 · Feb 21, 2013

SSpeeDEMONSS said:
Maybe I just want to do twins. What turbo is going to give me 5-550 and quick spool?

Garrett

probably getting paid at work to post this from my bionic

I say go for it! I would run a little bigger stick, like 175/75. There will be some trial and error getting the lp turbo spec'd out but it would be awesome. Tuning is the hard part.

SSpeeDEMONSS · Feb 21, 2013

One of my main reasons to go with a 155 is because of Elite's DIY kit.

Garrett

probably getting paid at work to post this from my bionic

Extended Power · Feb 21, 2013

I don't wanna piss on your parade, but I would like to know why you would go through all the work of fabricating up a set of twin turbos to get 500 hp, when you could get the same HP with a single VGT?

Again, just wanna know...not trying to be a dick.

Extended Power · Feb 21, 2013

And I think a VGT in a twin set would work fine if you don't spray the hell out of it.

Compounding is actually easier on the secondary turbo, then running it as a single.

(eg: 80 psi on the backside of it pushing one way, and 35-40 psi on the frontside...only about a 40 psi differential instead of the full 80 psi runnning as a single.)

SSpeeDEMONSS · Feb 22, 2013

Why not? If I do twins it wouldn't get sprayed.

When one of my other engines gets here I'll see what I start to do. Might just go stock charger and fab the twins in what little spare time I don't have.

Garrett

probably getting paid at work to post this from my bionic

SSpeeDEMONSS · Feb 22, 2013

I assume a 180/75 would be a better injector choice? Though still curious how far a 155/40 could go with twins.

Garrett

probably getting paid at work to post this from my bionic

Fast-6.0 · Feb 22, 2013

I have had this on my mind and have been thinking of using the VGT from a VT365.

Its a 54mm inducer with a small turbine wheel. Combine that with a 71. Why? Because I love the torque a 6.4 delivers. Wouldn't be as much torque but would be pretty good.

FaSSt9602 · Feb 22, 2013

Fast-6.0 said:
I have had this on my mind and have been thinking of using the VGT from a VT365.

Its a 54mm inducer with a small turbine wheel. Combine that with a 71. Why? Because I love the torque a 6.4 delivers. Wouldn't be as much torque but would be pretty good.

Why not a 72? Your new 72 seems to be working well...

05PSD · Feb 23, 2013

I'm interested in this too. I would like (if possible) 450 to 500rwhp with an ultra strong low end and mid range for towing 12K. I like the idea of small twins for getting my loads moving quicker.

SSpeeDEMONSS · Feb 26, 2013

i assume it has already been tried but can the secondary be turned sideways? enough to where the up-pipes would go straight forward into the turbine housing and the downpipe would come out straight towards the passenger side? i don't have a complete engine in the truck to look at but i will have 2 in the garage by the end of the week that i can play with.

Garrett

MorganY · Feb 27, 2013

Yes, Kyle did this awhile ago; Matt at CED did this recently too. Should help it flow much better.

SSpeeDEMONSS · Feb 27, 2013

Ahh, OK. Figured if I was going to make new up-pipes might as well improve on them.

Garrett

probably getting paid at work to post this from my bionic

3brorce · Feb 27, 2013

MPD, what size injectors?

Spectre32 · Feb 27, 2013

Fast-6.0 said:
I have had this on my mind and have been thinking of using the VGT from a VT365.

Its a 54mm inducer with a small turbine wheel. Combine that with a 71. Why? Because I love the torque a 6.4 delivers. Wouldn't be as much torque but would be pretty good.

Why wouldnt the torque profiles be close to the same??