1BADChev

Hey Guys, I am purchasing Tims Car(helicoil). Full engine breakdown is below. I am planning a low 9's car, I have many builds in the past but none with higher compression. I plan to convert to a race fuel setup/tune, go for a F1A,F1C, or F1R on the car to reach a 800-900 rwhp target. Although I would like some opinions on running a blower setup on this engine. I have been told By a few running higher compression that it is definitely doable, but there are some risks. This would be my first Procharged setup. Lookin to get some info on running a good 15lbs of boost on this motor. Please share your thoughts and any advice would help.

Thanks,

Frank

__________________________________________________ ___________

* Engine (has right at 1000 miles on it) 500 RWHP
-NEW LS2 block (fully prepped and machined) see thread below for details., can support 1000RWHP
-Callies Compstar 4340 forged 4.0" crank
-Callies Compstar 4340 forged H-Beam rods with ARP 2000 bolts
-Diamond forged pistons(11.2:1 comp ratio)
-Hellfire piston rings (file fit for N20 or boost)
-Trickflow CNC 225 heads with upgraded springs 165# on the seat,450# Open
-Yella Terra ultra light roller rocker arms
-Manton custom 11/32" pushrods (reduced diameter oil hole thru center)
-Vindicator camshaft - custom 240/244 .601/.605 114lsa
-Morel link bar lifters
-Mamo ported FAST 90 (smoothed and painted gloss black exterior)
-FAST 90mm TB
-Mellings 10296 HV ported and shimmed oil pump, torrington bearing
-Rollmaster double roller timing chain with LS3 tensioner
-ARP 12 pt Pro Series Main Studs
-ARP Pro Series Head Studs
-Felpro MLS head gaskets
-SLP 10% underdrive balancer/pulley
-Norris aluminum catch can
-Fast Toys 105mm lid
-K&N air filter
-ARP balancer bolt
-FAST fuel rails with Aeromotive adjustable regulator (can be boost referenced)
-60# Seimens flow matched fuel injectors (support 850RWHP)
-Custom Speed Density tune


ENGINE BUILD THREAD

NA 'street' LS2 403 build - "From Crate to Dyno"

* Transmission
-4L65E Finish Line Transmissions Level 7 (billet shafts)
-cast aluminum TCI pan
-Circle D 4C torque converter (4k stall, drives like a 2800 in town)
-External TCI trans cooler plumbed with -6 Earls black braided hose and black AN fittings

* Rear end
-Moser 9" Ford, Moser third member
-True Trac, 3.70 gear, 31 spline Moser axles, 4wheel ABS, H.D. spicer yoke, aluminum pinion support, ARP wheel studs

* Chassis/Suspension
-UMI black powdercoated road race K-member
-QA1 adjustable rear shocks
-BMR Extreme rear drag sway bar (adjustable), tig welded body mounts
-BMR subframe connectors, silver vein powder coat, tig welded to body
-BMR chrome moly adjustable torque arm, silver vein powdercoat, urethane front mount
-Lakewood driveshaft loop
-UMI black powdercoated adjustable pan hard bar
-BMR adjustable lower control arms, sliver vein powdercoat
-Wolfe chrome moly 6 pt. roll cage, black powdercoated with swing out door bars on both sides (professional install)
-PST aluminum 1200HP driveshaft,1350 joints
-SLP Line Loc kit

* Fuel System (950 RWHP) capable - with an injector change
-Lonnies Performance double pumper fuel module, Racetronix wiring
-twin Walbro 340's (second pump set up on hobb switch for boost)
-Aeromotive billet aluminum fuel filter, billet clamp, stainless element
-AN-8 black braided supply line
-AN-6 black braided return line, all black anodized AN fittings
-FAST fuel rails
-Seimens 60# injectors
-Aeromotive adjustable regulator

* Exhaust
-Magnaflow quad tip cat back (stainless)
-Custom 3.5" stainless I-pipe with DMH electric cutout installed
-Flowmaster 3.0" - 3.5" merge
-Kooks modified stainless Y-pipe
-Kooks 1 7/8" stainless headers
-all exhaust work was tig welded

Bob@BruteSpeed

iTrader: (16)

With race fuel and possibly methanol injection I see it as doable. You'll make the power with an F-1A, check out this build we did at the old shop that is now closed. http://www.exoticperformanceplus.com...Car.php?car=29 Bob

ls1290

iTrader: (20)

60# injectors supporting 850 rwhp, don't see that happening. 11.2:1 with boost is going to require exactly what Bob said.

grpaic

Dont play with fire man, do it right, better a thousand bucks up front for a new piston set up, then 10 thou later

93formto98T/A

iTrader: (28)

I'm with these guys. Most of your drivetrain says; street car. Do you really want to have a race fuel only car with "only" 900rwhp? You'd be way ahead by getting the correct pistons and then achieve 900rwhp on pump+meth and actually be able to enjoy it on the street as well as track. From personal experience I can tell you it would be wise to put a few bucks into correcting your setup for boost now vs later. Also, you'll need to ditch the 60# injectors and go 80s or 96s.

blk00ss

iTrader: (66)

I did it. 11:1 with 14lbs via a D1 on a 402. I ran 93 octane with meth injection. Never had any detonation and the IAT's were always in check.

1BADChev

Hey Bob, I didn't see the compression ratio on the new 402 build. A methanol kit is definitely apart of the plans, also I would definitely go to 160lb injectors to play this safe. This car would be a mostly track car and be streetable anytime for meets/ cruises of maybe 40 miles. Not ever a daily driver so I don't mind the race fuel change(c16). I have had high 9 second cars in the past, but not with 900rwhp so I feel that will be enough to get the low 9's slip. I plan to do some weight reduction as well. So maybe even 8's...


I am considering the change with pistons and heads etc but would really like to avoid it if say 30 passes a year with top dollar maintainence would be ok.

Advice is much appreciated!

Bob, I will probably be calling you in the next week or so to put an f series procharger on order...

1BADChev

How do you like the F1R and why did you pick that over the F1A or F1C?

N2OBaby

Who makes 160 lb injectors other than Bosch or Ford Motorsports?

PRAY HRD

iTrader: (119)

I assume your meth was tuned into the equation vs added after the tune, meaning you're relying on meth to make your combo pump gas friendly. This being said, how long would it take under WOT if your meth pump failed or a nozzle clogged? This i what i'm very nervous about so I personally will make what power i can and add meth after it's tuned for added insurance at the track or smokin' hot days but wont rely on it. Perhaps i'm too cautious but it makes sense to me to use it as an aid only on pump.

OP....what's the cc of your heads? I'm planning to go turbo with my motor at 11.2:1cr with 62cc heads by swapping to 72cc heads attaining close to 10:1cr. Is that an option for you?

1BADChev

You are right Bosch, Ford Motorsports, Siemens, and the Fuel Injector Clinic. I have seen a few guys with the low impedence injectors go up to 214lb setups...

N2OBaby

214 lb injectors wow!

To the OP have you considered E-85 as a fuel?

93formto98T/A

iTrader: (28)

Last time I checked, the Moran injectors went up to 500lb/hr.

ChevyChad

iTrader: (50)

+1 vote for new pistons. You can most likely sell the current pistons in there now and that would pay for a very good chunk of the new ones.

blk00ss

iTrader: (66)

Yes it was. But I did run it for a while without the meth. On 9lbs it made right at 680 with NO meth. Never got it on the dyno after the meth and 14lbs.

PRAY HRD

iTrader: (119)

NICE! With what heads and through an auto or 6 spd?

blk00ss

iTrader: (66)

Patriot stage III's and through a six speed.

1BADChev

Thanks for all the tips guys.

I have spoken with Bob, Virginia speed, LME, Procharger tech supp. All say it is doable but with precaution-Race fuel 100octane or better, conservative timing, f1a kit is more than enough with 8lb rib air to air larger size FMIC, and 80+lb injectors if over 800rwhp. I also plan to reduce atleast 200-300lbs off the car Spare tire delete, rear seat delete, about 5-6 feet of exhaust components etc etc.

I dont want to be sorry later tho , I am looking for a fun track car in the low 9's with the looks and not sacrificing too much.

Tim Habel is currently got a firehawk formula ls6 with a d1sc 3300lb car th400 on 16 or 17lbs of boost running 9.18 et's compression is lower. I have been noticing alot of people going to alittle bit higher compression to get a solid based motor+ the forced induction...

Thoughts?

slow trap

iTrader: (22)

check and see what cc the heads are. if they are in the 6x cc range a change over to a 72 cc head would be a heck of alot easier than pulling the motor to change out pistons. if you pulled the motor just wells to throw in new bearings/rings and that would hit the pocket as well. that scr just seems alittle high imo .

1BADChev

They are 72cc heads. After a number of hours in opinions etc feel pretty good about doing the f1a procharged setup and taking some wight off will help me achieve my goals. Worst case scenario I can sell the current block and do a fresh build for 20lbs of boost and zip right in the 1000rwhp range mid 8's car...