BW374 4G63 Project

[jo1]

Since this car is a FWD all the weight had been transfer to the front to help on the traction. The car is not a daily drive it more for the drag purposes and weekend bash at other time it park at the workshop.

Thank you all for the compliments on the setup.
Comment regarding the traction is most welcome.

Right now the car equipped with Kazz lsd, modified gearbox ratio, short stroke adjustable absorber, mt 26x10x15c, 15x10 greg weld rim and future planning would be a wheelie bar.
For this coming event i will run the car without wheelie bar to access how it behave.

More pictures

 

[jo1]

I'm in the process of wiring the fuel pump, did anyone had any experience using this pump. I would appreciate it if anyone could highlight me on the wiring of the speed controller or i can just use the power and ground only as normal fuel pump wiring without the speed control.

This is the electronic features of the fuel pump:
# Internal speed controller for variable flow operation
# Accepts 0-5 Volt signal for speed control
# 12 to 16 volt vehicle electrical system compatibility
# No expensive voltage reduction/pulse width modulation controllers required
# Continuous duty–motor speed can be adjusted for street or strip fuel demand

 

[BoostFrenzy]

For a while I was wondering why you mounted the turbo the way it is. Normally over here, we mount it the other way where the downpipe faces the left side of the car (right side in picture). It leaves more room for the intake. But I guess this makes a little more sense now. You are still going to have to figure out a way to bring in cool air so the turbo isn't just ingesting hot underhood air. Other then that, great looking project.

 

[jo1]

This position will get me the shortest IC piping and i will fabricate a CAI from the front bumper up to the compressor housing
see the picture...

 

[kicker91laser]

Looks really nice. Have you considered a smaller battery in front of the wheel well or are they both being occupied?

 

[me612]

Nice. That's a huge turbo too. That thing should be putting out some power once it's done.

 

[ed_dogg23]

WOW!!!!! Thanks for providing the pics. What size turbo is this?

 

[jo1]

Looks really nice. Have you considered a smaller battery in front of the wheel well or are they both being occupied?

Thank You...

That the only available space infront.... rear is not an option. I want to keep the rear as light as possible.

 

[jo1]

WOW!!!!! Thanks for providing the pics. What size turbo is this?

That a BW S400sx 74mm turbo with A/R 1.00 turbine housing with standard compressor housing

Hopefully it can produce some good number

 

[thilaksharma]

That a BW S400sx 74mm turbo with A/R 1.00 turbine housing with standard compressor housing

Hopefully it can produce some good number

374 or 474 bro

 

[me612]

If it's a 374, that would make it a 300 series. Either way, still a huge turbo.

 

[jrohner]

Great car, except for the front bumper. That turbo looks massive.

 

[Dsmj89]

Holy crap what a beast of a setup. Looks real good man keep up the great work ! Can't wait to see it when it runs and what numbers you put down.

 

[kiggly]

Nice looking build.

That is a S400 series turbo. All the turbos Bullseye named S3xx are actually S400 series, they just have the more common S300 turbine flange bolt pattern. We normally call the common S300 bolt pattern "T4" from the Garrett naming convention.

That turbo combo is capable of solidly over 1000whp through a 5-spd trans.

Kevin

 

[jo1]

Thank you very much all...

Done the wiring yesterday need to tidy up it a bit and do all the switch installation.
The car has been started, need to change the fuel map since the base map is for standard injector.. you will now how hard to get it start for the first time with 1650cc injector.
The fuel pump killing the 30amp fuse if i crank and idle it to long so then just cut the purple wire for speed control, viola it work like a champ even with a 20amp fuse.

The car idle at 20psi base pressure with only 0.67ms injector duty at 10hg around 1000-1300 rpm.. The sound of the engine is quieter than the fuel pump.

Planning to tune it on the road first by early next week at 15-20psi to get the idea how the turbo spool. A week after will be going to the dyno for 25-35psi tuning. Just hoping the gearbox still intact for the tuning session.

 

[habitatguy187]

What kind of cams are you using?

 

[thilaksharma]

What kind of cams are you using?

if not mistaken , he is using bc280's

 

[jo1]

That right Thilak... Currently using BC280, will stick to it unless it become the limitation..

 

[jo1]

Done a bit tuning on the road with a conservative ignition timing and pump gas last night. The car boost around 22-23psi with 1bar wastegate spring... Cannot lower the boost below than that. The car pull like hell, i don't thing it can be tune on the road anymore.
Set the Rev limit at 8500 and it bounce the rev limit at ease need to increase the rev limit to 9.5k or 10k.

The turbo spool characteristic exceed my expectation, seeing 20-23psi around 6.0k-6.5k.. The boost move too fast from 9psi to 23psi... need to datalog during the dyno session.

Heading to the dyno this weekend or early next week and will convert to straight ethanol mix with Shell V power for bluish effect.

 

[twicks69]

Good luck with the tuning and the dyno time! I will be interesting to see your results!

I am running the same turbo with a slightly larger A/R turbine and the larger Bullseye RACE compressor cover on my car for this season (BW S400SX 74mm w/ T4 1.10 A/R on my 2.3L). On my current setup, the standard 60-series compressor cover was a straight bolt-on affair, but the Bullseye RACE cover is requiring a custom fab for the manifold and the downpipe to get it to clear my bellhousing and block (which it is currently hitting...). The RACE cover is around 11.5" in outer diameter, and has a 5.6" anti-surge inlet, and I am using a 3" hose outlet instead of the V-band o-ring flange outlet.

What are you using for oil feed and oil return plumbing? I am intending on running off the filter with a -4AN feed line, and will be using a -10AN return line. Are you using a pressure restrictor? Are you using a larger oil return line than a -10N?

Good luck with traction, you will need alot of time spent on dialing in your suspension, and I would likely look at fabbing some traction bars, and using a pretty high spring rate on your rear coilovers.

Good luck with the build, and I look forward to your results!

Later,

Tim Z

 

[jo1]

Hi Tim Z,
Nice to have you around. I'm using -4 AN from the head with no restrictor what so ever. The return fitting i get together with the turbo too big for -10 AN hose so i used -12 AN hose and fitting at the oil sump, it too tight down there to take a picture. So far there no white smoke and it work great for me.

The short stroke absorber use 7kg/mm spring at the rear with the softest setting for the time being. Will dial up the absorber setting during this week and probably looking for hardest spring rate if it cannot take it. I'm also planning to fab a traction bar after the shakedown run this 2nd. May and weighing the car at the same time. For the time being the weight distribution between the front and rear is conservatively estimate around 65% to 35%.

Good luck with your project too.

 

[jo1]

Done a dyno tune last night, getting 600whp and 420FtLB.
The turbo suck the SS net install inside the air box during the dyno but it survive with just a scratch on the compressor wheel and the SS net never being found . This is one hell of a turbo, other turbo will not survive the mishap.

Need to do a fine tune before the event, sending the car for traction bar fabrication this weekend. The event has been postponed to the end of May, got 2-3 week to do the fine tuning.


Some more pic.... no scanner, all the money had been spend on the car.

 

[me612]

619 on a Dyno Dynamics is some serious power. If no correction factor was used, that'd be right around 700hp on a DynoJet. Awesome numbers!! It should have quite a bit more in her though.

 

[jo1]

619 on a Dyno Dynamics is some serious power. If no correction factor was used, that'd be right around 700hp on a DynoJet. Awesome numbers!! It should have quite a bit more in her though.

Thank you...
I don't think any correction factor was used. I still expect more from what i'm getting right now and i'm more concern about the torque figure and under the curve...

Would it be different torque figure if i run with dynojet? Not to start a DD vs DJ thread...
I cannot compare with other dsm's dyno sheet because mostly using DJ. All their torque figure is better than me

 

[me612]

Locally what we've been seeing here is around a 16-18% difference between an AWD Dyno Jet and an AWD Dyno Dynamics dyno. Both HP and TQ numbers.