1sick7

I purchased '93 Rx7 with 107k mi about a week ago. It's automatic, but drives very well. I still haven't done any tune-ups but the engine seems to be working fine as well as the cooling system. However, I began to notice heat coming from right underneath the passenger side's door. It's enough heat to feel when I'm driving 45mph with windows open. The heat dissappears as soon as I turn off the ignition. What could this be?

mpfcc

under the passenger door or under the passenger floor board? Do you have any upgrades to the exhaust? If not your precat might be clogged.

1sick7

I think it's under the passenger side floor, but externally. The car is 100% stock, and I don't have no exhaust upgrade. Is it something I should worry about?

mpfcc

Well the precats are known to become clogged after time, but make sure you do your research before modding your 7.

1sick7

What's a precat, and how do I fix it?

maxcooper

It is worth checking out, but it might just be normal exhaust heat.

-Max

mpfcc

precat is located before your cat, it is fixed by replacing it with a downpipe...but it could be normal exhaust heat...hard to tell from where I'm sitting lol

here's a good place to start: http://www.robrobinette.com/reliabiltiy.htm

1sick7

Thanks a lot. You've been a lot of help!! And Quick!!!

- J

Btw, is it possible that the normal exhaust heat is putting out that much heat? And is this normal?

jimlab

Just curious... are you simply bored, or are you trying to set a new record for the most posts in a 24-hour period?

mpfcc

Actually, I am quite bored. I've been a member for quite some time but due to me being over seas for half of the past 5 years (military) I have not been able to be an active member of this board.

I am currently on 24 hour duty with no tv and only a computer, I figured I'd get to read through alot of the posts and post my two cents.

mpfcc

No problem...and honestly you can't go by my replys alone but I personally have owned 2 FD's and only had some slight heat on my auto FD because the precat started to clog up.

jimlab

Well, you've considerably overspent your budget.

mpfcc

Naw...I could always find the LT4 swap post and add another 2 cents, but I'll refrain.

jimlab

Nice try at a snappy comeback, but it lacked a certain something. Oh yeah... any effect whatsoever.

Have a nice day, Mr. Post *****.

mpfcc

For one I'm not here trying to make enemies, so I don't know what's up your ***. You call me a post *****, I've been a member since July 2002 and have 56 posts to my name. You on the other hand have been a member since Feb 2001, with 7,981 posts, which averages out to roughly four and a half (4.7) posts every single day for the past 56 months. I'm sorry that I've been overseas serving my country in shyt holes where I don't have the luxury of sitting on my *** and posting four and a half messages every single day! Next time instead of taking 10 minutes just to produce a psp photo of my post times and flaming me, you should use that extra energy and frustration to pump out some work on that engine swap of yours, might be alittle more productive. Have a wonderful evening.

Sincerely,



Mr. Post *****

180sx-x

anyway...the precat is basically the stock downpipe that has a mini cat in it...my advice, get an EGT gauge and see if your exhaust heat is higher than normal...

mpfcc

You dont think it would just be cheaper to replace the precat with a dp? My Defi D series EGT was quite a bit more than a dp.

maxcooper

My advice: find someone else with an FD and try standing next to theirs. These cars make a lot of heat. When the raditor fans are running, they pump hot air through the engine bay, which heats the air even more, and then out on your feet and legs if you are standing next to the car. It may very well be normal. It may appear to stop when you take the key out because the fans stop running.

Pre-cat issues are usually associated with low-boost-at-high-RPM or slow-spooling-turbos issues. Do you have a boost gauge?

-Max

mpfcc

Actually, Max brings up a very good point. I was at a local car meet this weekend and my friend has an auto FD and I have a 5 spd, we noticed that his engine bay was alot hotter than mine. We are probably gonna meet up again in a week or so, I can stand next to his passenger door and then mine and see if there is alot of heat coming from either vehicles...my previous FD's engine bay was quite a bit hotter than my current FD as well.

jimlab

Most of which you picked up in the last 4 hours. Very few of which had any actual substance.

I've been around even longer than that, actually. Everyone's join date was reset after the early forum crashes. If you want to critique the volume of my posts, match my contribution in technical information and donations to the forum.

So you decided to make up for it by posting a little something in every thread you read all night. Good plan. BTW, I don't remember forcing you to joined the armed forces...

Ouch, that hurt.

mpfcc

I don't have the time to review all 7,900 + of your posts, why don't you analyze them, break down the techincal/bs posts you have done and put them on a spreadsheet (excel is preferred), and email me the results when you are done.

Thanks

jimlab

That was a little better. Keep trying.

mpfcc

Keep trying what? You're the one that started flaming me 2 hours ago because you don't approve of my posting habits, so I guess the real question jimlab is: Are you that bored that you have nothing better to do than flame whittle ol me?

by the way that's a rhetorical question, please don't answer...just let it be!

neit_jnf

iTrader: (17)

Best Thread Evar!! LMFAO