Just wondering about any pitfalls to watch out for?
And what are some easy and cheap ways to squeeze a few more ponies?
I know I can go with a Intercooled setup...but that's more $$$ than I've got right now...later it will come
I'm also wondering about raising the boost to 8-9 psi from the stock 6 psi and then custom tuning.
I already have a Dual Exhaust that's going to get modified with true duals and an X pipe.
Thanks guys, and looking forward to joining y'all in here. I got the wife to say yes, so the biggest hurdle is already passed
I've heard of detonation issues with the high IAT on non-intercooler SCs. The intercooler mod would be my first one followed by a +2 lb pulley and Troyer tunes.
You mite check with Troyer performance he may be able to get the intercooled intake for you.
Just go with a good tune first with the dual exhaust before upping the boost. once you start to up the boost you will need bigger injectors and that will require a custom tune.
Congrat's
__________________
2004 XLT Screw 5.4L, 412RWHP 489Torque, Forged Long Block, SCAT H-Beam Rods
Diamond 9 to 1 Forged pistons, Exhaust Head Port, Roush IC SC, Brisk 3vr14s Plugs,
Stiegmeier Stage IV, 6lb Lower, GMS COP's, Troyer Tuned
Cobra 2nd H/Exchanger, Pace Setter long tubes, magnaflow cats, x-pipe, DI/DO,
Ground Force 2/4 drop, MB Bruzer 22x9.5,Pirelli Asimmetrico's 305/40/22, Hellwig rear sway bar,
Custom Traction Bars, 4.30 gears, 20% tint, Carriage Works upper and lower Grills
Congrats but i wouldnt bolt a blower up to the truck unless it was intercooled. Mine is intercooled and i still see kinda high IAT2.
Wayne
$2750 shipped to my door
vs.
$6,000+ shipped to my door.
that's why I did it.
I'll gladly pay 1/2 price for 33 fewer HP. I've already been researching Intercoolers and whatnot. I may make my own intercooler setup. from what I (seem to) understand, I'll need to raise the S/C'er PSI by 4psi to actually see about a 2psi increase at the motor itself (lose roughly 2psi through the intercooler)
thanks for the replies. that's twice now I've been nudged towards Mike Troyer. apparently his wife's truck is the Roush Non-Intercooled. So maybe I'll benefit from his tinkering.
I understand saving some money on the inter-cooler.
But I don't know were your getting the idea of adding 4# to get 2 with an inter-cooler?
On a roots blower the only type of inter-cooler that would help at all is one (AFTER) the blower.
You will not loos any boost with that.
Now,,if you try to rig one that cools the air before the blower..Your just wasting your time and money.
It wont work.
Phil
__________________
Built Lightning block.
Stage 3 Ported heads. Comp Cams
Kenne Bell L upgrade blower 18 PSI
DMR Cog belt system
Kooks long tube headers
BTS race built 4R100 tranny
100 shot of nitrous
best 1/4 to date.
60' 1.68
11.76 @ 116.17
I understand saving some money on the inter-cooler.
But I don't know were your getting the idea of adding 4# to get 2 with an inter-cooler?
On a roots blower the only type of inter-cooler that would help at all is one (AFTER) the blower.
You will not loos any boost with that.
Now,,if you try to rig one that cools the air before the blower..Your just wasting your time and money.
It wont work.
Phil
it's basic heat transfer
the S/C puts out 6 psi. you cool that 6 psi down. the contraction of the air charge will reduce the pressure.
I've been doing some reading and most intercoolers seem to drop the pressure by approximately 2 psi. So what was 6 psi exiting the S/C and entering the intercooler...leaves the intercooler at roughly 4 psi.
to counter this, you bump the pressure leaving the S/C. in this example, you raise it to 8 psi to achieve a 6 psi "cold" air charge from the intercooler and into the intake. obviously I'd need some serious dyno tuning and tweaking. But I think it could work...and probably be a serious power adder.
if you don't believe me, try this.
get a 1 liter coke bottle. fill it with scalding hot water.
let sit in the fridge until ~40 degrees.
notice how it contracts and collapses in on itself? this is the reduction in pressure due to a reduction in temperature.
exact same principle occurs with a s/c and intercooler...just air instead of water as the medium
I've been doing some reading and most intercoolers seem to drop the pressure by approximately 2 psi. So what was 6 psi exiting the S/C and entering the intercooler...leaves the intercooler at roughly 4 psi.
to counter this, you bump the pressure leaving the S/C. in this example, you raise it to 8 psi to achieve a 6 psi "cold" air charge from the intercooler and into the intake.
Depending on the intercooler you may be right. I would think the normal air to air may have more of a problem then the intercoolers that are water to air models whereby the IC is below the blower. The real reason for the IC is that as boost goes up temp goes up which requires timing to go down which makes less power. If you raise boost and lower the air temperature, you can then run more timing.
And I can guarentee that you will not be happy with 6psi. When I started with the Eaton I went 12psi and still wasn't completely happy. Once I built bottom end to handle power immediately pulled 16 psi and now I'm real happy. And this is my daily driver.
Get a Tune as soon as you install it, don't wait! Save the money if you have to but don't bypass this step.
And yes, you'll get greedy and want more! We all do...... So start saving now, you'll be wanting that intercooler and more boost before you know it!
__________________
2002 5.4 Supercrew
Vortech Supercharger
Dynatech Headers
Magnaflow High Flow cats
42lb Injectors
2600 SCT Big Air Meter
Factory Tech Separator Plate
Flex-a-Lite E-fans
Walbro 255lph Pump
Accel COP's
MotoBlue Connectors and Boots
NGK Plugs
Superduty Tranny Cooler
JLP Shackles
Last edited by derrick929; 10-02-2008 at 09:13 AM.
if I'm wrong I'm wrong. and then I'll buy the Roush approved intake and intercooler from them.
you never know until you try though
16psi is nuts. I'm looking to keep this truck for a long time in stock(ish) form. She only has 22,000 miles. and at my current rate, it will have less than 30,000 miles in 2011 when I move back to the mainland.
Soon To Be FI with my 5.4
Linear Mode
