Project Update - D1SC Home Kit
Originally Posted by Chris ARE 385
GREAT NUMBERS!! 
What compression is the motor and what cam specs?
How lean were you going above 5800rpm?
What compression is the motor and what cam specs?
How lean were you going above 5800rpm?
The cam is a 222/228 ~580 (if I remember)
The a/f hits about 14:1 and will hang there till the end of the run. Not pretty, but it is costing me alot of power up top.
Originally Posted by NA$TY-TA
What Injectors Is Mighty Mouse running to make all his power?
Kyle
Kyle
But..... Mighty Mouse doesn't have to feed a supercharger to make all of his power. He is probably running 95 to 97% efficient on his power while we are running at best ~85% efficiency (most in the high 70's though)
With a D1 at these power levels, when you size your fuel system you have to add 150 to 200 HP right to the top, because that is how much your SC is sapping right off the crank. Alot of people forget their supercharger when sizing fuel systems.
Most supecharger kits that we see make power at .62 to .65 BSFC. So to see how far 60# injectors will get a supercharged car.
For 100% duty cycle:
60lb injectors become 68lb injectors on our fuel pressure.
68lb/hr * 8 = 544 lb/hr
544lb/hr / .65 BSFC = 836 HP.
So 60lb's are capable of providing 836 CYLINDER EQUIVILANT HP. Not RWHP. We'll work our way back to the rear wheels.
Cylinder Eq HP - Supercharger Loss - Drivetrain Loss = RWHP
836 HP - ~175 HP - 50 HP = 611 HP.
So Mototron 60lbs will get you to about 610 RWHP on a supercharged car before calling it quits. However this is at 100% duty cycle. To size you fuel system properly you need to run between 80% and 90% duty cycle at peak power. That would mean you should really only be pushing the 60#'s to around 550 RWHP
A turbo car on the other hand should be able to produce ~150 HP more than us on the same fuel system because they aren't feeding a supercharger to make their power.
Hi Kevin, good info I enjoy all that you post up. Seems like I am still underfueling the car even up here. Do you think I should move up to mototron 60's up here? What were you able to see in my logs? PM me with your findings.
Thanks,
Jeremy
Thanks,
Jeremy
WEll Jer if you do need them and i max out mine i sell them to you cheap..... i am wanting 650rwhp so i might need to step up the injectors again......... they were the biggest out there at high impedence when i bought them.
Kyle
Kyle
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Kevin,
Are the 72's hi or low impedance? I'm building a 383 stroker with a D1SC and plan on making 12-14#'s of boost. If i used a boost ready adjustable FPR couldn't the 60lbs Mototrons be used on a 700rwhp setup? What size blower pulley does SDCE offer so we can make 14psi? Does SDCE or anyother company make a FMIC kit to replace our twins?
BigBos,
Does the Griffin FMIC come as a kit?
Thanks,
Den
Are the 72's hi or low impedance? I'm building a 383 stroker with a D1SC and plan on making 12-14#'s of boost. If i used a boost ready adjustable FPR couldn't the 60lbs Mototrons be used on a 700rwhp setup? What size blower pulley does SDCE offer so we can make 14psi? Does SDCE or anyother company make a FMIC kit to replace our twins?
BigBos,
Does the Griffin FMIC come as a kit?
Thanks,
Den
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
It comes as a single intercooler w/no piping, I've having speed inc. do all the welding w/the piping and what not......
You can have SDCE make you whatever pulley you want, I would just go with the 3.4" to start with, I think w/the stock twin intercoolers a 3.2" will get you right around 14psi, the 72's are high impedance
You can have SDCE make you whatever pulley you want, I would just go with the 3.4" to start with, I think w/the stock twin intercoolers a 3.2" will get you right around 14psi, the 72's are high impedance
Im going to adjust my fuel pressure up so i can reach my goal of 650rwhp. My base FP is set at 56 psi right now and my boost Ref. isnt even hooked up because my FP is steady as a rock. I am wanting to see how much boos ti see with my new FMIC and the 3.4" blower pulley.
Kyle
Kyle
Originally Posted by Chris ARE 385
Thanks Kevin 
Any idea on your total cost for the blower setup? Think you can get the bigger injectors to idle ok with the stock PCM and tuning? (pulsewidth wise etc)
Chris
Any idea on your total cost for the blower setup? Think you can get the bigger injectors to idle ok with the stock PCM and tuning? (pulsewidth wise etc)
Chris
I don't think the 72lb injectors will be a problem at all. One of our 600 HP SC vetts runs the 60lb version of the injectors and they worked just fine.
60's with a 1:1 regulator I've seen run well into the 700's at the tire, but it was a lower boost larger cube application. Smaller cubes and big (25+) boost could not do that, too much pressure on the face of the injector.
Originally Posted by frcefed98
Cool and good to know, I am sure my 42.5 svo's are struggling or will be when it gets cooler out.
J
J
The problem with the plate type injectors that I am using and that most people in the 50's and 60's are using is that they don't seem to balance well above ~55 psi of fuel pressure. You end up with unevenly fueled cylinders which is VERY bad.
-Kevin
Originally Posted by F1RZ06
60's with a 1:1 regulator I've seen run well into the 700's at the tire, but it was a lower boost larger cube application. Smaller cubes and big (25+) boost could not do that, too much pressure on the face of the injector.