I want to kno if using an rtek 1.5 for my car will be enough for the mods i have, or do i need to get the 1.7?

Mods:
Cleaned and serviced injectors
Full 2.5in turbo back exhaust no cats
Fenderwell CAI
Removed Airpump
Ported wastegate
Turbo xs rfl bov
Better TID

Hope i didnt forget anything but thats the most of em...
Also do i need to upgrade my fuel pump or fpr for the 1.5 or 1.7??

Thanx guys

88 TII also has a full tune up performed and has 105 psi compression per rotor...

 

Dang i really need help picking which one i need, im like ready to order one right now!!!!

Please help me out...

 

How much fuel will i need for those mods posted above? do i need the 1.5 or 1.7?

 

The Rtek 1.7 is setup to run 720cc secondaries. If you have 550's all around, you can use the 1.5 or upgrade your secondaries and get 1.7.

 

You gave us 2 or 3 important details while leavintg out big things like how much psi you want to run.

Full exhaust will help spool th wturbo quicker BUT with a ported wastegate you shoudl only be running stock boost levels. So no ECU mod would be needed.

Stock injectors can take up to 10psi safely
Rtek 1.5 would be good for this range due to it's features.

You need to upgrade your fuel pump as a safety buffer if you do 10psi.

 

10 psi is fine considering i dont want to run it at an unsafe level, so yall are saying the 1.5 would be fine for those mods? But i do need a bigger fuel pump, would the walbro 255 be good or can i use a fd fuel pump?

also im planning on getting the jacobs fc1000 ignition box if that changes anything...

Thanx

 

I would go with the 1.7. The 720cc secondaries will make sure you wont run out of injector. 10 psi is about the safe level on the stock intercooler so you should be okay there. Also if you can run an FD pump with your setup. Its good to around 300 hp (Runs 210 lph) and will not over run your stock FPR like the Walbro 255.

 

i use the FD fuel pump and RTEK 1.7

 

dang 720 injectors cost alot, or does someone kno where do get some at a resonable price, there like 300 bucks on ebay....

 

If you want cheap go with Venom injectors. TLF performance parts on Ebay sells two 720's for around 150 bucks If I remember right.

 

the only ones i seen on ebay were 259 for two, so that sux, but yall think i have to have a bigger fuel pump plus the 1.7 in order not to lean out????

 

the fuel pump is gonna be needed if your pushing more than stock boost..... you can get the 720's here and have them cleaned for ALOT cheaper than EBAY

 

ok I guess im going to go with the 1.7 for extra security i just dont want it to run real rich and kill my power also.....so who has some 720's for sale..........

 

Here you go; Ebay number 120028494759. Two 86-88 Rx-7 720cc injectors, buy it now $145.00