2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Most regretted mod you've done

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Old Jul 30, 2008 | 11:17 AM
  #1  
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Most regretted mod you've done

There is a good thread like this in the 1st Gen section and being new to the 2nd Gen I'd sure like to hear peoples honest responses.
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Old Jul 30, 2008 | 11:29 AM
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From: cold
TB mod (well, it was done by previous owner). It basically hurts driveability (more likely to stall without dashpot, unstable cold idle unless you resort to trickery with the various idle screws) and all it saves you is two stinkin coolant lines. I didn't notice a difference in performance/response at all between a completely stock TB and a fully modded TB.
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Old Jul 30, 2008 | 11:31 AM
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taking off my a/c (that worked) on my old FC and running too big of exhaust (with no back presure ) on the old n/a.
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Old Jul 30, 2008 | 03:32 PM
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Building an intake manifold without anywhere to mount a BAC, and also not buying a Microtech configured to run a BAC. Both are going to be a real pain to rectify.
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Old Jul 30, 2008 | 04:52 PM
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gutting my cats while living in NYC.... couldnt pass smog after that lol... duuhhhhh
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Old Jul 30, 2008 | 04:58 PM
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Removing the factory stereo without researching how the surround is removed. (s-4) It was perfect before. Yeah, I broke the **** out of it.
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Old Jul 30, 2008 | 05:55 PM
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Buying a cheap cat convt.
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Old Jul 30, 2008 | 07:00 PM
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From: cold
^^ don't feel so bad, it would've broken eventually.
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Old Jul 30, 2008 | 07:26 PM
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regrets, ive had a lot

1. buying a t2 at night
2. putting the stock s4 turbo and precat on it, talk about slow and laggy
3. the rb springs/tokiko blues, got em used and they were not much better than 150,000 orginals
4. every apexi part ive ever owned.... exhausts look cool, but the fit isnt as good as greddy/hks/RB, and they sound like ***
5. i had to cut a lot for the 20b, which kinda sucked later
6. putting a cat back on it, it passed smog, but wasnt any fun to drive!
7. tb mod, totally pointless...
8. not my car, but corbeau seats, suck!
9. harnesses in a street car!
10. manual steering rack, ratio is way slow... although its still lighter effort than my bmw...
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Old Jul 31, 2008 | 02:12 AM
  #10  
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1. TB Mod
2. Resurrecting my Old beat up Wire Harness
3. Thinking my CS Power series with no resonators will be streetable.
4. Installing a Narrow band AFR gauge.
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Old Jul 31, 2008 | 03:12 AM
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Having a JDM 13B engine swapped into my vert after blowing the N/A engine. At the time I had no experience with performance mods for rotary engines and it is my first turbo engine of any kind. I'm still learning on the fly and catching up with knowledge and ability to work on my car.

It's a half-joke cause any sunny day the top is down and boost pressure builds I can't help but smile. But man have there been many expensive lessons learned along the way.

I just had to point out....this was my 500th post!!! For whatever it's worth I've never had this many posts on any forum.

Last edited by JustJeff; Jul 31, 2008 at 03:14 AM. Reason: shameless plug anouncing 500 posts
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Old Jul 31, 2008 | 07:32 AM
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I've been really stingy about mods. After all its an N/A. However the one mod I ended up changing back was taking out the stock air box, putting in a cone air filter and building a "hot air" box around it. Absolutely no change in performance. Put the stock air box back in with a new filter.
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Old Jul 31, 2008 | 07:59 AM
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Nitrous.....

Just boost it right and be done with it.

Also open dowpipe. At WOT and full boost, I am certain it cracks pavement with the vibrations.
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Old Jul 31, 2008 | 09:00 AM
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I kinda regret doing my TII swap, since it's taken so long. I've had several other issues which I had never foreseen.
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Old Jul 31, 2008 | 09:18 AM
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Originally Posted by rotorgo
Removing the factory stereo without researching how the surround is removed. (s-4) It was perfect before. Yeah, I broke the **** out of it.
FWIW, new ones are $100 at the dealer and made of a much more forgiving plastic. They also aren't brittle after 20+ years of sun.
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Old Jul 31, 2008 | 09:24 AM
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interior gutting on a NA DD. stupid idea. looked like **** and did absolutely nothing for me.
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Old Jul 31, 2008 | 11:25 AM
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Getting into rx7's in the first place? Na just kidding I love my baby :P
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Old Jul 31, 2008 | 11:31 AM
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Installing an emanage thinking it was a good idea.


And then taking it out after realizing what a horrible piece of **** that thing is.
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Old Jul 31, 2008 | 12:53 PM
  #19  
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buying an SAFC thinking it would be worth the money in the long run but eventually going to AP PFC.
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Old Jul 31, 2008 | 02:10 PM
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1. Buying a wrecked RX was my first mistake.
2. Doing the first mod on it(intake), and not keeping it stock was my 2nd mistake. Because it made me want to do many other mods after.
3. Then the throttle body mod was probably the worst mod I've done because I have a high rough idle after that.

It is still great fun to pretend I'm a mechanic. That is why it is still around. And because when it is running, the Turbo is soooo much fun!
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Old Jul 31, 2008 | 07:40 PM
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I had an '88 GXL that I decided to swap from auto to manual transmission. It was a bigger project that I had anticipated for my skills at the time. It took forever and I ended up getting stuck on a stupid thing like the trans cross member for months.

I ended up buying my TII in the meantime and actually sold the car with the unfinished swap. I should have kept the GXL the way it was and had two drivable 7's.
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Old Jul 31, 2008 | 07:45 PM
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To4S hybrid turbo. Made the car so laggy it was good for nothing but freeway...
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Old Nov 19, 2008 | 04:36 PM
  #23  
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dont know about mod but most regretted with an rx-7....
bought an 87 gxl that sat for 2 years trying to make it run. turned out the motor was bad
sold the first rx-7 i ever had. 86 sport, 5 lug, no sun roof, manuel everything. sold cause at the time gas prices were raising to like $1.50+ and i couldnt afford it, and now.... im really kicking myself in the ***
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Old Nov 19, 2008 | 04:43 PM
  #24  
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buying a cheap boost gauge from mazdatrix. it works but looks like ****
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Old Nov 19, 2008 | 05:09 PM
  #25  
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Buying it. I wish I would have waited for a cleaner/lower mileage one.
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