hey whats up, im hella new to this board, ive been with honda's forever untill i traded my 99 civic hatch for a black 93 Rx7.

im running into a few problems with it, ill list all what it has and doesnt, as of right now, she's garaged for the winter.

-fully rebuilt engine, new rotors,rotor housings,3mm apex seals, all new seals,gaskets, bearings, and Etc. i guess the rotor housings were cryo-ed?if thats the correct term.

-street ported

-HKS single turbo conversion, stock IC and radiator, unsure on which turbo i have,,,(its big, the compressor side housing almost hits the shock tower sheet metal)

-HKS 3 inch DP

-HKS 3in mid pipe/cat

-HKS 3 in exhaust

-HKS external wastegate

----no BOV

----no clue on how much boost, no guage, kid claimed 8psi

----stock injectors

--stock fuel pump

----stock computer

----pretty much everything else is stock

the problems,,,, check engine light is on, i dont know how to read the codes.

1st gear when it grips, will windout no problem and redline at like 8300-8500ish. 2nd gear when it hooks up. it will redline or cut out at 6500ish. its like a ignition cut, or fuel cut,,, hope she didnt detonate.

and 3rd gear at like 5500, it does that same cut thing. this only happens when im at full throttle, otherwise at less throttle, it will actually rev out further. 4th and 5th im sure will do the same thing, because the engine is under a bigger load. after it does that cut, and i let off the gas, i just goes right back down to idle at like 800-900r's with no wierd ****. when i shift from 1st to 2nd it shoots a nice flame out the exhuast, so i imagine it would be running rich,, not always a bad thing. i dont really know that much about this car, other than its pretty fast and looks hella sexy. if anyone could help me out or point me in the right direction,, it would be great. the engine was sent out to be rebuilt somewhere in florida i guess, i forgot the name of the place/guy.

---the other problem that happened 4 days ago. the weather was nice so i pulled the 7 out of the garage beucasei had to spraypaint one of my other cars (winter beater). after i was done i let the car idle for like 10 mins to warm up, i went down the road a bit and got on it a few times. i wound out 1st, shifted early out of 2nd so the thing wouldnt do the shutdown problem on me,, becuase i still dont know whats its doing (being safe i guess) and by doing that i smoked the clutch a lot, but i dont care, i planned on putting a new clutch in it over the winter, so i parked i, let it idle for 3 mins, killed it, and during that time, i smelt the stench of the burnt clutch. i thought no biggie, i dont care. 2 days later i had to move it again, i let it warm up and pushed in the clutch and went to put it into 1st,,, **** didnt go down that way,, it wouldnt let me go into 1st or any other gear no matter what, if i try forcing it, the car lurches an makes a god awful screaching noise. so i was like WTF! i turned it off, then it would go into the gears again like it should, so i fired it up and same problem, so i killed it,,, put it into revserse, then fired it up and that worked, but as i started to let out the clutch and started to move, it made that loud ass screaching noise. so i killed it and pushed it. but the problem still is the same. the chassis and trans/clutch have 94k engine/turbo 3k . i can tell the engine was removed not too long ago, so it seems legit, ive done like 15 honda swaps, so i know what to look for. it only did that cut out problem 3 times,,,, 1st and 2nd were trial,, 3rd was accident, so i hope no damage was done. the noise it made sounded like it was getting the ignition cut, no other noises whatsoever. no clunks,clangs, or bangs, or knocks from the engine.

-----like i said, im new to this forum, i plan to make this my new residence for Rx7 info. thanks to all that help me out in anyway possible!!!

--james

Your biggest problem is you have all these mods with a single turbo and still the stock ECU. My advice is stop driving it and start reading.

yeah, you need to find out what turbo you have and build a fuel system for it



mike

also sounds like your tranny might be totally out of fluid, either that or the synchros are seriously toasted. You need to do some serious catching up on rx-7s and turbo cars in general before you even start this thing up again. Running an fd with upgrage turbo on stock computer, and stock injectors is not smart at all. You can barely get away with running intake an exhaust on stock turbos, I've seen almost 90% injector duty cycle at 12.5psi.

stock fuel system and no management = BIG HEADACHE......overboosting will come quickly due to the free flowing exhaust.



your issue as far as the limiter in 2nd is most likely a fuel cut/overboost response. if it happens that early in second, it will get earlier in the upper gears.....



please read and god willing, enjoy the car carefully, and yes, figure out exactly what you have.

Kid? Ummmm...that might be your problem.



Kid=Dumbass with cars



Sadly I am a kid....Thats why I keep the hood closed!!

1. your definitly hitting the stock computers boost cut

2. the stock computer isn't giving it the fuel it needs for a single conversion.

3. you smoked the clutch and shut it down right away, it probably warped the disk or broke the disk so it is still grabbing even when the clutch pedal is pushed to the floor...



get a new clutch, find out what turbo is on it, get fuel and get a computer or you'll be out a **** load of $ building a new engine...

Where are you loacted. Perhaps I can reccomend a shop to look at the car.

there's nothing wrong with being a kid. i am 19, bought my own FD, put a new motor in my 240 today, and have rebuilt a 13B before. yeah, i'm just a kid, i don't know ****

you tell 'em russell, some of us "kids" are mechanically inclined, hell some of us are in school making it a profession.



Stereotyping is never a good option, in any cases whatsoever.



Heck half the "ricers" out there have the ability to swap in whole different engines rewiring them and all on there own abilities. Sure you may not like the cars looks but you need to respect most of the people's abilities. Some people are just "stupid" when it comes to cars but it is DEFINITELY NOT limited to "kids".



kevin.

Hehe, I'm stupid and I'm NOT a kid.

thanks for all the info, yeah i do have a good knowledge on turboed cars in general,,,on honda's that is with conventional 4cyl's that are easy to tune,,,, the rotor world is definately another story. i didnt drive it too much atfer i got it, and when i did i wasnt always getting on it, and like i said she's garged now. i got a 93 Rx7 SHOP manual with it, not the owners manual, the kickass shop one,, which is very very nice. as for what turbo i have, im gonna poke around under the hood today and look for tags/numbers on the turbo, and will post back shortly. with that boost cut/fuel cut thing due to the stock computer,, can that hurt the engine? i mean over time if i keep drving w/ all stock fuel management,,, which i wont, i know it will harm it, but for the times that it did do it,, can he engine be screwed up? i hope not, i love that car and cant wait to learn more so i can get eveything i need to make it run perfect and fast,and i know its not all bolt on and go, i have access to a dyno and wide band O2 and all the goodies. its the touring model if that makes a difference in any way. and to --94TOURING i saw all your mods in your sig. the 18psi on pump gas sounds really impressive, what Hp numbers you puttin down? ive seen people at like 13psi on pump gas doing like the lower 400RWHP range, with a single turbo of course. anyhow, off to the garage!

---PS i live just outside of chicago in the burbs...

Pop the hood and take pics.



https://www.nopistons.com/forums/pub...#>/biggrin.png

There are actually a lot of FD owners in your area that know their ****.. find them a become friends... https://www.nopistons.com/forums/pub...#>/biggrin.png

alright, i pulled the piping that runs from the turbo to the intercooler to get a better look at things. there is no tag on the polished compressor side, but on the inside of the female piping on the turbo (where the rubber coupler goes over to connect the IC piping), its has 55 casted into the metal on the inside. and on the exhuast side of the turbo it says garret, so its a garret turbo ide imagine.duh. also on the front of the polished comessor side housing, theres a big T machined out of the cast on it. thats all i found out for now. when i go out there again in a little bit i wanna jack the front end up and take a look on the underneath side to see how things are and maybe find some more numbers. and i have pics of it, i just dont know how/havnt tried to post any yet.

Keep us posted! Investigations are always fun!

Take a couple pics, one of the compressor face and wheel and one from the top looking down at the turbo...