Quote: Originally Posted by rustyknuckles
for the newbies to injectors(such as myself) what max duty cycle should i look to stay clear of?
i always thought the cc's needed per hp were about as follows
(being rated at 43.5 psi and max duty cycle of 80%)
300hp 590cc
350hp 650cc
400hp 700cc
450hp 750cc
am i correct?
Your whp numbers for injector size looks about right. I will say, however, that there are alot of factors that go into it (especially on the SRT4) so don't take those loose guidelines as a gurantee.
As far as max IDC, I think 85% is pretty conservative, especially if it is just for a couple seconds. We test for max IDC on our flow bench and can run them at 85% for extended periods of time w/o any hicups. Our SRT4 injectors usually go static at about 90-95%. You definately want to stay below that! For race cars I'd suggest a target of 80% IDC. For street cars, short bursts at 90% IDC are just fine.
