Want to build a Turboed Silverado

[viper1_2001]

I want to turbo my 99 5.3l silverado, I'm building a kit kind of like the sts kit, my goal is 425hp at the wheels, running 8-10#'s of boost.

But I'm still a little lost when it comes to picking the correct turbo and ar's this truck is my daily driver but it will see the track every now and then.

Here are some of the turbo's I've been looking at, what do you guys think
here is the Garrett but the one I was thinking about buying was a .81 ar for the turbine

eBay Motors: Brand New REAL! GARRETT GT4088 T4 Turbo (item 170164925815 end time Nov-08-07 09:12:01 PST)

eBay Motors: TURBONETICS 62-1 T4 Turbo 600HP Mustang Supra Chevy (item 170166832803 end time Nov-13-07 18:41:32 PST)

Also I still don't know what tuner I should use either Ls1edit or Hptuners

and where can I find bigger injectors, whats the biggest I can go without changing fuel rails or anything, will my walbro 255 fuel pump handle running 10#'s of boost

[viper1_2001]

also should my maf be before or after the intercooler

[RedHeartbeat]

After the intercooler. The MAF may also incorporate your air temp sensor. You'll want the PCM to measure things just before they go into the intake.

[Jamest]

If STS go with the .81 A/R on the exhaust and the .67 A/R on the intake. # 42 injectors an inline fuel pump, Have Allen Nelson do a S/D tune and ditch the MAF. If you use the MAF, run it after the intercooler for cooler intake air reading.
My old setup was like this except we went with the #68 injectors and a 220/220 .581/.581 on a 115 cam. 475.7hp. It drives like normal you will never know it has a turbo until you put your foot in it.

Good Luck!

Jamest

[viper1_2001]

what is better with or without Maf

[Jamest]

what is better with or without Maf

On forced Induction, I would think MAP is the way to go. MAF on N/A

Jamest

[viper1_2001]

I just like the idea of having the maf, for data logging

[Jamest]

MAF will be fine. With the HP range you are wanting it should be fine.

I just like the idea of having the maf, for data logging

[viper1_2001]

will this turbo be to big

http://cgi.ebay.com/ebaymotors/ws/eB...079756238&rd=1

[Jamest]

It will spool fast. That is a standard size turbo on the STS and I think the Trick. T60-1 T62-1. It should work. I would opt for the T67, or T76 its just a little bigger, so you can further mod your motor and still have turbo to match it.
Oh and its expensive. I paid 900 for a T76
Jamest

will this turbo be to big

eBay Motors: Turbonetics 62-1 T4 Turbo W/Ball Bearing .81 A/R (item 250079756238 end time Nov-27-07 05:02:45 PST)