Realistic power goals with s366

[meet07]

Im gonna be purchasing the both Warner s366 turbo in the next few weeks and im curious if I will meet my power goals. My setup would be built block bored. 040 over and stock head with a 5 angle valve job. Using e85 aiming at 21-30psi of boost....looking for 5-600whp using nistune, dual walbro's and other supporting mods like fmic,1000cc msd's and chevy truck coil packs

[240z4u]

Your injectors aren't big enough to support 600whp going by my calculations. You need 1,200's.

Sounds like a nice turbo though, and I hope you hit your goal!

[meet07]

1200cc huh. If the walbros ever give me a reason to upgrade to twin aeromotive stealth pumps then Ill upgrade the injectors. That or cams which ever comes 1st...lol. Thanks I wired in a Accord V6 resistor box since im using low impedance injectors.

[Booztd 3]

My power numbers are pretty well documented with this turbo (essentially)

Mine is not a bullseye S366 but it is a Borg-Warner 91/79 (the official name)

On E85, 1000cc injectors, mild cams, full-race manifold with twin 44's, stock ignition, AEM EMS and an otherwise stock RB26(never touched the bottom end) I made 718rwhp/586rwtq on a mustang dyno. I dont get too caught up in the numbers but that would have been around 800rwhp on a dynojet. FWIW I've trapped nearly 140mph in a 3600lb car with this turbo. At this point my only limiting factor is the fuel injectors. On the dyno we were at 90+% Duty Cycles

[meet07]

My power numbers are pretty well documented with this turbo (essentially)

Mine is not a bullseye S366 but it is a Borg-Warner 91/79 (the official name)

On E85, 1000cc injectors, mild cams, full-race manifold with twin 44's, stock ignition, AEM EMS and an otherwise stock RB26(never touched the bottom end) I made 718rwhp/586rwtq on a mustang dyno. I dont get too caught up in the numbers but that would have been around 800rwhp on a dynojet. FWIW I've trapped nearly 140mph in a 3600lb car with this turbo. At this point my only limiting factor is the fuel injectors. On the dyno we were at 90+% Duty Cycles

Yeah I have seen the video over 1000 times im sure...lol. When are you seeing full boost? My only concern is when I will see full boost with the rb25. I believe you are taching your rb26 up to like 8500 correct? And how much boost are u running again?

[Booztd 3]

bigger pic

http://booztd3.com/Pictures/Dyno_Charts ... _25psi.jpg

[RRRRB]

was the boost falling in that graph? i was looking and saw its says 24-28psi or something of the sort...

Reguardless thats great power for stock block.

I just bought a 6766 billet precision T4 1.00 divided turbo and some 260 10.25 cams in hopes of simular numbers on my Rb25/26 combo im working on hopefully i will have it done in a couple months, waiting on the head....

[Booztd 3]

was the boost falling in that graph? i was looking and saw its says 24-28psi or something of the sort...

Reguardless thats great power for stock block.

I just bought a 6766 billet precision T4 1.00 divided turbo and some 260 10.25 cams in hopes of simular numbers on my Rb25/26 combo im working on hopefully i will have it done in a couple months, waiting on the head....

Boost was tapering off, speculation can only formulate it was caused by the manual boost controller I'm still running to this day. Would like to get a GM boost solenoid and tie it in to the AEM but i have been so distracted. Also I've noticed the loading of the dyno seems to dictate the boost as well. On a 1/4 mile pass I see the boost pretty rock solid at 25psi

It would be nifty to throw some ID2000's on this thing and really push the setup. I've got the rest of the fuel system up to par for 1000rwhp but I doubt we'll see too much more out of this turbo. I'm really looking forward to getting my hands on a new BW EFR 91/80 which flows ~15#/min more and would seem much better all around (transient response, weight, etc) Overall this setup is solid and has worked great going on two years now. The only issues I've had are drivetrain issues after repetitive beatings at the track

http://www.youtube.com/watch?v=5fwqPIc-yt4

[Shocker]

The only issues I've had are drivetrain issues after repetitive beatings at the track

http://www.youtube.com/watch?v=5fwqPIc-yt4

Have you ever weighted your car Andy? I'd bet that has something to do with more breakage... Whats ur best 60' to date?

[RRRRB]

what parts are you breaking and how often?

[Booztd 3]

Its been a while since I've tipped the scales. I can assume between 3600-3700lbs

My best 60' to date is on radials and was a 1.46



I'm breaking the output shafts, and its only when I try to really get after it at the strip (agressive tire pressure, aggressive 2-step)

This last year I only broke one, and it was on radials. I didnt break a single output shaft on bias-plys this year. I've found if I keep it above 13-14psi in the tires and around 5500-6000rpm on the 2-step im usually OK.

FWIW I always break the passenger output shaft (the longer one)

[RRRRB]

you break anything in the trans?

[Booztd 3]

you break anything in the trans?

I'll go through a trans a year usually because of those stupid synchros starting to grind but I never fix them - I just buy another used transmission and go about my business. A few times I have also broken the shift fork, but I think I was just being over abusive on it.

[meet07]

I Dont understand the science behind turbo's spooling up faster on ones motor over the next but Im hoping that I would at least get 2 grand of full boost and hopefully making power to 7500rpms. After looking at my head I have decided to open up the area around the valves and im in the process of removing the humps on the exhaust ports(skylines australia) With me opening up the area around thie valves the guys at the machine shop said that would lower the compression...will this make that big of a diffrence?

Will the 50mm wastegate slow the spool up as well?? I too am building this car for the straight line....any pointers.

[danielmcn]

You could shave a little off the head to make up for the loss, but I dont think you will raise the comp that much. I was going to unshrude my valve, but when I put my head gasket on there was no room. Afreind of mine said on my head I could prob gain 30 from it, but I cant do it. Have a picture of what yours look like?

I would put the head gasket on the head and make a line so you know where the gasket will go, this way you dont take out too much.

[Booztd 3]

The Tial 50 isnt going to hurt your spool time. Remember the wastegate holds the flapper closed which is what directs the max amount of exhaust air to the turbine. No matter how you do it, holding the flapper closed is holding the flapper closed!

[Darius]

In most stand alone ECU's, one is able to set the boost gain to adjust when the WG starts to open. I have my boost control gain set to 100% so the wastegate doesn't crack open before I hit 100% of the boost setpoint. On more responsive turbos, this setting can be lowered and tweaked to act as a poor-man's traction control so the boost doesn't come on as hard.

[meet07]

Finally ordered it and it was dropped of the next day...







And my favorite!


I was looking at the spool valve that sp makes....whats your guys take on it? Little pricey but seems to be a great add on for the price....

http://www.youtube.com/watch?v=I6ZCOTFET6s
http://www.youtube.com/watch?v=_KNLKVgg ... re=related

[danielmcn]

Nice turbo....


Cute kid....

[Shocker]

I was looking at the spool valve that sp makes....whats your guys take on it? Little pricey but seems to be a great add on for the price....

http://www.youtube.com/watch?v=I6ZCOTFET6s
http://www.youtube.com/watch?v=_KNLKVgg ... re=related

I'd make sure you check hood clearance firstly. Also keep in mind you need a non divided manifold. It works and is worth the price with a large turbo on a small displacement motor.

[meet07]

I was looking at the spool valve that sp makes....whats your guys take on it? Little pricey but seems to be a great add on for the price....

http://www.youtube.com/watch?v=I6ZCOTFET6s
http://www.youtube.com/watch?v=_KNLKVgg ... re=related

I'd make sure you check hood clearance firstly. Also keep in mind you need a non divided manifold. It works and is worth the price with a large turbo on a small displacement motor.

In the 1st video I thought the gt42 only came divided?