big turbo time! am i missing anything? (srt4)

srtguy05 · Post by **srtguy05** » Tue Mar 27, 2012 10:20 pm

Ok so I have decided big turbo it is. I have done my research regaurding my turbo set up and my power goals are clearly made.
I have chosen the Agp dbb delta 46 kit.
Parts I will need I think
Agp return Line kit
Deatschwerks 750cc injectors
Caliber 3 bar map and tip
Wideband
Walbro 255 fuel pump
Fuel pump rewire
Diablosport tuner
Obviously new clutch
3"intake

Am I missing anything?
I am shooting for atleast 425whp.
I already have an Mpx exhaust
Wideband
Dsp
Bfmic
Hardpipes
Hks ssqv bov
Also will I have to remove the balance shafts? I was thinking yes. Also why I am here I will be installing a dcr 5 layer head gasket.
Any advice would be great

synviper · Post by **synviper** » Tue Mar 27, 2012 11:40 pm

If you looking to rev past the stock limit you might want to cut the balance shaft and install ARP rod bolts as well when the oil pan is off.

Are you planning on running pump, pump/meth, racegas, or e85? If your thinking of running e85 you should look into some bigger injectors.

Other than that you have yourself a pretty good list to make a fun car.

black03rt · Post by **black03rt** » Wed Mar 28, 2012 12:39 am

I call the stock turbo!!!!!

srtguy05 · Post by **srtguy05** » Wed Mar 28, 2012 12:29 pm

Pump gas only really, I'm not really planning to rev past stock maybe 200 rpms more at max.

boostalot717 · Post by **boostalot717** » Wed Mar 28, 2012 1:04 pm

An extra d46 for when that one pukes it guts.

srtguy05 · Post by **srtguy05** » Wed Mar 28, 2012 7:18 pm

Idk about all that haven't read about any failures with the double ball bearing deltas

boostalot717 · Post by **boostalot717** » Wed Mar 28, 2012 9:53 pm

This is true most have been journaly bearing. But after seeing what a good friend went through its left a bad taste in my mouth for AGP.

srtguy05 · Post by **srtguy05** » Thu Mar 29, 2012 12:08 am

I can imagine but they say they got it together with these dbb turbos we shall see

loroku@aol.com · Post by **loroku@aol.com** » Thu Mar 29, 2012 1:22 pm

for any serious power go with the arp rod bolts
the dcr head gasket is a joke ive had many many trouble free miles out of my autozone felpro gasket save your money. esteinmiaer runs the same gasket.

also fully remove the balance shaft assembly its terriable for oiling.
and go with this kit with the 5858 over the delta unit
http://www.agpturbo.com/srt4-agp-precis ... grade-kit/
your better off with too big of injectors on your car than too small i would suggest a minimum of 1000cc there is some tits 1400cc units now from fiveomotorsports
what fuel will you be running?

srtguy05 · Post by **srtguy05** » Thu Mar 29, 2012 8:47 pm

650 HP. Man that's pretty crazy. What are the stock internals good for

loroku@aol.com · Post by **loroku@aol.com** » Fri Mar 30, 2012 1:33 am

as far as the stock internals with out upgraded rod bolts they hold to about 400whp befor the rod bolts fail. now if you upgrade to the arp units noone has had a failure to date that wasnt tune related. Srt guy dynoed over600whp but tore the block back down after a few weeks case he got scared.
whats your intended use for this car? cause 650whp is nucking futs. what fuel are you gonna run? i have a ton of knowlage love posts like this, i enjoy giving out solid useful knowlage on turbo parts.
Taylor

srtguy05 · Post by **srtguy05** » Fri Mar 30, 2012 10:09 am

My goal is about 425 or so whp. I am only running pump gas. I will be using a rewired set up with a walbro 255 fuel pump. Agp return line, and deatschwerks 750cc injectors I wouldn't mind Maxing out the d46 but its not really my plan. I may down the road go with water/meth. As for my choice in turbos I'm pretty set on that d46 double ball bearing set up like I said nothing bad heard about those and it meets my goals to the Tee.
The car is not really a daily and I'm bot a hardcore track guy I just want to break into the 11s.and that's about it.

loroku@aol.com · Post by **loroku@aol.com** » Sat Mar 31, 2012 2:34 pm

ok just personally not a massive fan of the agp turbos. if all your looking for is 450whp y not go to something else like a .50 trim or the pte the agp stuff isnt all that where in the rpm range spool wise are you looking to be?
and the d46 maxes at 450 which means its gonna be a chore to get there if you run something else slightly bigger it will be easier i used to want to run a small turbo bigger turbos put less strain on the engines systems at the same hp as a smaller unit. if you run say a .50 trim at like 21psi making 400whp you could run a 60-1 at maybe 15psi to get the same hp numbers less pressure means less worry about ignition and detonation, since you wanna run pump a bigger turbo would be a better choice imo.

srtguy05 · Post by **srtguy05** » Sat Mar 31, 2012 10:19 pm

Ah I understand makes sense. About the pressure theory. Spool I would.like around 3k rpms or so. Umm just throwing this out there maybe a delta 55?

boostalot717 · Post by **boostalot717** » Sat Mar 31, 2012 11:35 pm

just so you know agp lists there spool RPM's using a 4th gear pull. Also not a fan of agp's turbos. But, I do have to say when you have a problem with their stuff they will take care of you.

With that said remember that more power lower in the RPM is harder on the rotating assembly, axles, and really the entire drivetrain. More high low end torque numbers and more smokey tires.

Have you looked at MAP's EFR series of turbos?

srtguy05 · Post by **srtguy05** » Sun Apr 01, 2012 9:49 am

I have not looked into them. I've only been looking into the Agp line up. I was looking into the agp pte 5858 or the delta 46 but reallllyyy don't want to go a dual fuel pump set up. And I don't want to build bottom end.. so I guess at this point now with the information in front of me trying to decide what would be the best turbo

loroku@aol.com · Post by **loroku@aol.com** » Tue Apr 03, 2012 4:41 pm

the EFR turbos are amazing from the few dyno charts ive seen. tho they are not available right now they are having isseus with the turbine castings they have the CHRA and compressor hoings ready to go their foundry cant get it right for some reason or i would have suggested t=one of the efrs.
ya the 5858 is an epic turbo man if you dont have cams eespect full boost around 3500.
taylor

srtguy05 · Post by **srtguy05** » Thu Apr 05, 2012 12:55 pm

And if I got with that pte is it worth the ceramic ball bearing?
Also would I just use the walbro 255 and 750cc injectors and return line and tune it from there?

Hudson_Neon · Post by **Hudson_Neon** » Thu Apr 05, 2012 1:46 pm

the walbro isn't gonna make it to 450hp and i doubt you could make 750cc injectors hit that either, unless you're running e85 or race fuel

srtguy05 · Post by **srtguy05** » Thu Apr 05, 2012 6:06 pm

You sure lots of mods list with that set up hitting around 420whp. That's about my goal

esteinmaier · Post by **esteinmaier** » Thu Apr 05, 2012 9:13 pm

With lots and lots of fuel pump, 750s will do 450 on gasoline. Walbro gives up right around that point, and then if it's a good day, it runs rich, and then on a bad day it runs lean. Not the way I would want to do it. 1000cc injectors would be safer, but 750s with an inline pump and an external regulator would be better.

loroku@aol.com · Post by **loroku@aol.com** » Thu Apr 05, 2012 11:20 pm

srtguy05 wrote:And if I got with that pte is it worth the ceramic ball bearing?
Also would I just use the walbro 255 and 750cc injectors and return line and tune it from there?

itll give you better spool up and better boost recovery from shifts. vs the journal bearing its all about what you want the bb will help you acheive full spool by about 3500rpm just check my jb 5557 tonight and its at full boost (16psi) by 3300rpm in 4th gear the dbb 5858 has a better turbine wheel that has updated areodynamics on it vs the old 5857 turbine.
taylor

srtguy05 · Post by **srtguy05** » Fri Apr 06, 2012 12:24 am

So let me ask it this way what would.my original.idea for a set up be good for?

loroku@aol.com · Post by **loroku@aol.com** » Fri Apr 06, 2012 12:50 am

probaly 400 on gas

srtguy05 · Post by **srtguy05** » Sat Apr 07, 2012 9:21 pm

Hmm ok that would work for me just done actually. However bigger is better.
Umm I am looking into getting a set of Cams pretty cheap I might add they are crower stage 1s worth it for 200 bucks almost new?? Even with a stock turbo? I mean the price is pretty awesome

loroku@aol.com · Post by **loroku@aol.com** » Sun Apr 08, 2012 4:48 pm

thats not a bad price just make sure you upgrade your springs too as the crowers will eventually cause spring failure. springs r like $70.

srtguy05 · Post by **srtguy05** » Sun Apr 08, 2012 7:54 pm

Would that benefit me? Those Cams it should I just invest money else where

srtguy05 · Post by **srtguy05** » Sun Apr 08, 2012 8:12 pm

Just wondering I'm looking into the dcr modified walbro and fixed bottle neck fuel canister.I'm thinkin that will do the fuel situation fixed up

Hudson_Neon · Post by **Hudson_Neon** » Mon Apr 09, 2012 12:15 am

srtguy05 wrote:Just wondering I'm looking into the dcr modified walbro and fixed bottle neck fuel canister.I'm thinkin that will do the fuel situation fixed up

i'd do your research on that "bypass mod"...

http://www.srtforums.com/forums/f187/wa ... od-624731/

loroku@aol.com · Post by **loroku@aol.com** » Mon Apr 09, 2012 12:16 am

the cams will help it breathe better making your goal easier to acheieve. you should trys a 044 pump for the intank pump