What does it really take to go turbo?

[J Industries]

I have been reading all I can get my hands on for the last three months and tried to not ask questions but find answers (aka I do use the search button). I am now at a point where Parts are going to be purchased and money is being spent and Making sure I make the right choice is important.

The main question is choosing the right turbo. I have been all over garretts web site and going by what I have read and also by what I was told, the proper way to choose a turbo was to do the calculations and look at the turbo map.

The truck is a 4.8, cam, LT, gears, yank3000, e-fans, CAI, custom diablo tune

It seems that most truck guys run 70 - 76mm. The calculations I have done land me at the GT3582R. specs are 56 trim and 0.82AR.

the other things I was more confident about (but still up for opinions) are:
Bosch 044 pump
60lb inj.
aeromotive fuel regulator
2.5" hot tubing
3.0" dt
31x12 intercooler
3.0" cold tubing
TiAL BOV/wastegate
Synergy tuning


All that being said I'm desperately looking for constructive advice or experiences.

Thanks in advance,
future member of the turbo club.

[Botlfed]

Get ahold of allen nelson, turbo mic, quik, casey23, those 4 know pretty much the worlds wealth of knowledge on turbo stuff

[J Industries]

I agree with that but didn't want to just send a bunch of pm's, cause you never know who else might chime in with that one piece of the puzzle you forgot. I home they make their way to this thread. I really look up to them for their knowledge and what they have done with their trucks.

[pl4yboy]

The longtubes won't work for the turbo setup. They are made to dissapate heat quickly, which isn't good for turbo setups. Swap back to stock manifolds and sell the LT's to recoup some money. On a 4.8, I'd go with a 70 or slightly smaller. Who's hot pipes are you going with? Are you fabbing your own?

[J Industries]

I know the long tubes wont work, that list is what I have now. I was going to use the stock manifolds reversed and inverted with the crossover in front of the motor. I will be building everything myself.

Why a 70? besides the reason it works or that's what so and so is running.
I'm not saying your wrong but, I'm pretty good with math and all the calculations plotted on the map say go bigger to stay in the higher efficiency areas.

There must be something I'm missing.

[kyhunter89]

What will the truck be used for?

[casey23]

Get ahold of allen nelson, turbo mic, quik, casey23, those 4 know pretty much the worlds wealth of knowledge on turbo stuff

I think this is the smartest thing you ever said G !!!! Lmao

[Botlfed]

I think this is the smartest thing you ever said G !!!! Lmao

thanks man, just trying to nutswing with everyone else

nah just everywhere i read on turbos, you guys usually pop up and have something to say, and not just on this site.

[J Industries]

Casey23, what do you think size wise?

[EmmerichLSx]

I've been trying to sell a turbonetics t-70 for a while now. Pm me if you're interested. I'll bump the thread in FS section if you wanna take a look. It's called the couldn't hack it sale.