HomemadeTurbo - DIY Turbo Forum

HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   General Discussion (https://www.homemadeturbo.com/general-discussion-6/)
-   -   Planning on buying a 1990 RX-7 (https://www.homemadeturbo.com/general-discussion-6/planning-buying-1990-rx-7-a-3094/)

Xgenturbo 03-26-2003 12:22 AM

Planning on buying a 1990 RX-7
 
I want one of these, and i will turbo the ---- out of that little rotary, hehe, actually i heard that engine can take 12 psi on stock internals.

Rolla1990 03-26-2003 01:36 AM

Re:Planning on buying a 1990 RX-7
 
Dude, everyone I know that has one of those has it jacked up in their driveway all the time for some reason....

leed 03-26-2003 02:33 AM

Re:Planning on buying a 1990 RX-7
 
Had an 88 once. Apex seals took a dump.
Rotaries love detonation. :)
If I had $$$$ and wanted a challenge, I'd boost one.
Read the new Sport Compact yet? Good stuff on the next gen rotary.

45psi 03-26-2003 02:50 AM

Re:Planning on buying a 1990 RX-7
 
my freind works at a rotary shop. you can boost the ---- out of those 13b 's. "----"=15lbs.

fishnfst 03-26-2003 11:29 PM

Re:Planning on buying a 1990 RX-7
 
Proper fuel management is the #1 thing with the T-2's. I've seen guys blow motors running a complete stock motor with just a downpipe upgrade. You all know who you are with the HKS deathpipe I mean downpipe.....If you can find a 1990 I think that is the year that they went back to a steel apex seal in stead of the composite one. Good Luck with yours they are a blast...

turboDXcoupe 03-26-2003 11:46 PM

Re:Planning on buying a 1990 RX-7
 
your going to be rebuiling every 50. thous. after that your going to det... big time. its an expensive car to maintain but they hall all the ass!!!!!!

Devil Motor Sports 03-27-2003 10:46 AM

Re:Planning on buying a 1990 RX-7
 
I may not know honda's but one thing i do know is Rx7's. You can run higher than 15psi, but who needs to. At 15psi with a 60-1 you will be putting down about 400rwhp, but that can vary based on your fuel setup and turbo size. Rotarys aren't like pistions, you dont have to pump a huge amount of boost into them to make them have power. As for the rebuild comments, yes, they are very prone to blow up, but as long as you take the proper steps to make sure they dont, they want.

Chris
Ps: here is a link to my car so you can see just how cool 7's are :) http://www.devilmotorsports.com/rtr/...hris/chris.htm

fiero_god 03-27-2003 12:03 PM

Re:Planning on buying a 1990 RX-7
 
i've always been a fan of 7's but i hate it when they get riced and kitted out :-X. I just find those rotaries to be crazy as hell and i like crazy looking stuff not to mention a mechanical marvel. I would have to say go for it , working on a car is the point of haveing one. Its fun to mod them and see your reward.

Devil Motor Sports 03-27-2003 12:10 PM

Re:Planning on buying a 1990 RX-7
 
amen

turboDXcoupe 03-28-2003 01:47 AM

Re:Planning on buying a 1990 RX-7
 
i went to dennys tonight and man i saw a white one with a big fat ic. witha vielside kit i was jocking like a it as a naked chic ha!!! i like those i think i might get one how much are they fer the one on fast fur.?

Tad 03-30-2003 05:41 PM

Re:Planning on buying a 1990 RX-7
 
the one in the fast and furious was 93+
expect to pay 14-20thousand for a stock one.
and then have 5grand in your back account at all times "just incase"

so yeah, if you want to get one cuz you saw the fast and furious, and think it'd be cool,

then by all means, go for it, cuz you'll loose hella cash, and then i'll laugh my ass off at you

neoboi 04-01-2003 10:09 PM

Re:Planning on buying a 1990 RX-7
 
rotaries can handle what? <~19 psi T04e 60-1 and getting higher! i need to re-program my microtech for 3 bar, it's set for 2 bar so i'm pretty much maxing it, my internal is stock, if i rebuild my engine it'll handle more boost but makes more horsepower at a lower psi because rebuild usually equals port job.

detenation happens because rotaries source of holding compression is an APEX SEAL that's it, so of course it can blow, 3mm are nice upgrades can handle more abuse but a good tuner can handle 2mm and make it hold as good as 3mm apex seals,

apex seals = piston rings for you non-rotary people.

the reason most people with rx-7 blow their ---- is because they don't know jack ---- about rotaries, mazda fuel pump is weak so is mazda's electical, fuel pump needs 12v while at boost but weak sauce alternator can't pump out enough volts while a/c,headsligths, music, etc is on so what happens? it blows from lean mixture, first upgrade should be cheap and free, REWIRE FUEL PUMP, then later on get a walbro 255 lph, that's what i got, still good for 11 sec!

stock turbo for rx-7s is big as t3/t4, put them together check it, u'll c.

15 psi is too much 12 psi is crazy, with stock intercooler, because stock intercooler is efficient only around 11-12 because it's in a heated area. bad spot.

to run 12 psi, u need a fuel controller and 720cc secondaries to keep it safe, since 1990 is the one ur after then you don't have to worry much about overboost because of 87-88 wasetgate are bootay and 89-91 are larger and safer and easier to control.

50k? rebuild? u must have read that ONLINE, never have any proof and if you have proof then show me, and ask them how much they know about rotaries, i bet not alot. my friend has a 180k turbo rotary, not a boost crazy person but that's a ---- load of miles for a turbo car don't u think?

with exhaust mods your turbo would be able to breath better so watch out! full exhaust can cause boost spikes with 87-88 turbos and sometimes on 89-91 turbos because it's too much free flowing, rotary heads usually port wastegate to control boost,

need more questions to be answerd?

-mike

AgentMurdoc 04-02-2003 10:05 PM

Re:Planning on buying a 1990 RX-7
 
I just wanted to say them 7's are dope. I was gonna get one (i think it was an 86, wasn't that the first they introduced that body style?) But it was N/A, but for an N/A ..... awwwwwww that thing hauled ass!

Semnos 04-03-2003 04:40 AM

Re:Planning on buying a 1990 RX-7
 
Love the 7's...


All times are GMT -5. The time now is 11:44 PM.


© 2024 MH Sub I, LLC dba Internet Brands