Nephilim

iTrader: (1)

so been reading the forums, and have to upgrade my injectors, firgure it one of the issues why car runs like ****.

It is 10th anny that is street ported and runs on t4 turbo and has stock injectors ( bought the car whith that set up). Wondering what would be the cheapest and best set up. THinking of picking up some 1600cc injectors for secondaries and calling it a day. Oh also have a apexi power fc I just picked up, so tuning not an issue.

87 t-66

iTrader: (133)

what size turbo? i'd go with 1000's or 1600's...dont forget an aftermarket fpr and a walbro

Nephilim

iTrader: (1)

its a t4 turbo, the car already had an aftermarket fuel pressure regulator and ..........................walbro?

87 t-66

iTrader: (133)

walbro fuel pump...t4 turbo doesnt help much.

Nephilim

iTrader: (1)

so i got bosch 1680 for secondaries, would I be fine with the stock 550 for the primaries

or should i go with all 720cc injectors

RETed

That's a really poor attitude.
If the car runs like **** now, it's going to run WORSE with larger fuel injectors.

Fix the problem FIRST *then* modify...


-Ted

arghx

iTrader: (3)

your proposed fuel setup is ok, but I agree with Ted--you need to figure out what's up with the car. What do you mean it runs like ****?

Evil Aviator

That may or may not be the case, but I don't think you would be very happy to spend several hundred dollars on bigger injectors just to find out the car runs even worse. What are the current symptoms?

FYI "T4" could refer to the basic compressor size, or even just the flange size. You need to be more specific.

Just to make sure you understand the situation...
1. The PFC (Part # 414AZ004) requires an adapter in order to work with your RX-7.
http://www.banzai-racing.com/index_contact.htm
2. The PFC does not tune itself. Given your basic questions, you are going to really need an experienced tuner to set up the PFC.

Nephilim

iTrader: (1)

lol im not a reatrd, the power fc was loaded with the base map by banzai for me. Car turns on a can run, but has no low end, not tell after 3k rpms then the car runs like normal, t-04b turbo I believe.

Evil Aviator

Advanced automotive knowledge is not part of human instinct, nor is it part of the normal K-12 school curriculum, so this has nothing to do with being retarded. I just wanted to make sure you understood the situation so you don't waste time and/or money needlessly.

Good, you shouldn't attempt any tuning on your own.

Bigger secondary injectors won't help that at all. Therefore, as RETed said, you need to troubleshoot the problem first.

There are several different models of T-04B, but it doesn't matter at this point, lol.

RETed

If this is the case, then why not tune the PowerFC to get your low end back?
What makes you think throwing bigger fuel injectors is going to fix your problem?


-Ted

RotaryPicha

iTrader: (2)

Dude your askin a question and there trying to help you just listen and dont get so defensive. THEY know what there saying!

Nephilim

iTrader: (1)

so what do you guy think could be the issue with the shitty start up and bad responseon the down low.

joeylyrech

iTrader: (11)

maybe timing is wack,low compression,need a tunning section,start with the basic like check your compression,tune up,vacuum leaks and the work from there

Nephilim

iTrader: (1)

ghetto compression check says everything is fine in that department, now for the vacumm leaks, working on right now ( manual is hard to read about tubes and what exactly goes where)