Red/Black -top injectors

[pasqual]

Just question ...

REDTOP
Injector size = 315cc

BLACKTOP
Injector size =365 cc

According this Fuel Injector Worksheet:
RC Fuel Injection

on REDTOP 315cc/NA/fuel pressure @rail 43.5PSI injectors are able support max :
190 BHP on 80% max injectors duty cycle (recommended)
215 BHP on 90%
238 BHP on 100%

for BLACKTOP 365cc/NA @43.5PSI

220 BHP on 80% max injectors duty cycle
248 BHP on 90%
275 BHP on 100%

Now question to Celica RA45 ...how this is looks in practice ???

what is standard fuel pressure @rail on RED/BLACK

how much BHP can support "standard injectors" for NA ..... ??

[MANDALAY]

Sorry but l have to correct you the RED TOP manual states that the injectors are 340cc

[pasqual]

Originally Posted by MANDALAY

Sorry but l have to correct you the RED TOP manual states that the injectors are 340cc

Good news .... I got info about 315cc from this source

Beams: Need some help

Specifications
VVT-I = Variable Valve Timing - Intelligent
Intake cam is VVT-I enabled
Aerodynamic volume displacement (cc) = 1998
Piston bore vs stroke (mm×mm) = 86.0×86.0
Compression ratio = 11:1
Rod pin diameter = 22mm
Rod big end bore = 51mm
Rod big end width = 21mm
Rod lendth to center = 138mm
The highest output (ps/rpm) = 200/7,000
Largest torque (kg-m/rpm) = 21.0/6,000
Injector size = 315cc
Cylinder head chamber compression = 33-34cc
Intake Valve Diameter: 33.5mm
Exhaust Valve Diameter: 29.0mm
Included Valve Angle: 44.5 degrees

Anyway how much BHP can support 340cc ??

[Servin]

About 210 HP.

[Celica RA45]

also you dont wont to go past 80 % in duty cycle as you can fry the solinoid in the injector try some black top 1s at 365 cc same ohm rate as well 13.8

[2old2rusty]

So in simple English, does that mean that I'll increase the performance with the bigger 365 cc injectors if fitted to my red top ?

[Celica RA45]

you wont increase the performance but you wont be at 80% duty all of the time either down to 70 % instead with the 365 cc

[pasqual]

can standard red-top ecu handle 365 cc injectors ..or just stand alone ecu is required ??

[2old2rusty]

Originally Posted by Celica RA45

you wont increase the performance but you wont be at 80% duty all of the time either down to 70 % instead with the 365 cc

Now I get it. Thanks for the explanation, Celica RA45 .

can standard red-top ecu handle 365 cc injectors ..or just stand alone ecu is required ??

Good question, will piggy backs like the E-Manage do the job ?

[hp_zim]

Originally Posted by pasqual

for BLACKTOP 365cc/NA @43.5PSI

Is this the stock fuel pressure on the blacktop?

[Celica RA45]

altezza is 62lbs with no fuel return as in std fuel pressure from the factory