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I do have Mr o2 sensor undone and I do belive the open loop rich trick may help. I do also belive the "hot mota" theory, when I saw how glowy red(orange) my header gets on the rev I knew them there...

Do tell more????? It just seems that when it's in cold mode she flies, and as it goes off full rich it falls off...alot!!!I mean we're talking really big diff. Thanks,Rick

On an 89 2nd gen how do we "exactly" fool our computer into thinking the motor is cold to richen up the mixture.What resister spliced into what color wire or jump what to do what to my you know...

I spent alot of time on this very topic, but as usual, simple is ...well ...simple. on my 89 2nd gen, I used 2 cheap NAPA brand stock replacement electric pumps from 1st gen 13-b car ran in series in...

I used a hex style release, the spline type have a lot of slop after a year or two. And the only way to install one is to cut off the stock threads and weld it on !Have fun,Rick

I run a 15 gal. it's nice to be able to go as long as needed, remember you don't have to run it full if you don't want, also I love the ballast, and you never know you might want to run an enduro.

Made you look!!!Actually, what we have here is a second gen on a new(Mazda factory rebuild)motor throwing a seamingly innosent( by piston engine standards) ultra slight variable vibration. At idle...

Taller is better!!! My set up-is way up, my rockers are well over 6 inches, and on Kumhos I'm doing as good a Hoosier- lowered top Cal Club car in ALL of the corners( just can't seem to keep it on...

First lap on a car they barley let on the track do to it's looks, and I come in, as all the lugs on every wheel gets a full turn or two in front of the "cheif steward", thats called "NOT" having ANY...

Have'nt been out to type w/you cool cats for a while, but I could'nt pass this one up. For my money DEFINATLY go for the 89. The bumper covers are exact, except, the side molding is different so you...

Well after 4 double Regionals and one week end at Laguna Seca, the car has'nt finished less than second, except for Seca where sound control put a damper on my week end, I should of known better....

Wow, I've never heard of a push in a 2nd gen. to my knowledge they always feel a little lose, or maybe thats just my sideways style.Also it might have been the track and maybe even just a few...

Sounds like you've got a handle on it, and your set up is correct...keep going . PS, a well built cage "IS" the key to success (a) foremost for safty, and (B) if you really do a great cage your car...

I run mine past 1/8 inch, but take them to the trash shortly there after, a well made brake should hold together all the way to the metal, but I've seen some that start to crumble as they get down to...

Well just had to brag... so far I've got a pair of firsts and a pair of seconds in only 2 events thus far. This past weekend at Buttonwillow (Cal Club)was some of the best racing I can remember, even...

Looks fantastic, hope she'll run just as well as she looks. So as I'm building my car I'm tossing numbers back and forth for three months and even going as so far as to tape them off on the car 21...

Karl, I belive you about the pipe extendo and if I could shave off some sound I will, these things are stinking loud, I ran on my test track ( limited use hwy.) for about an hour w/out a helmet and...

We're not in Kansas no more Toto ! I finally got the "old" 89 GTUs up and running and I CAN'T belive how darn wild these things are, I can't belive I won 4 Southern Pacific regional Championships in...

The last rain race I won was on a set of 3/32 shaved brand new Kumho's smoked the whole IT feild and ended up 5th in SRF and they had a split start lead. I did have a good run w/ a guy that had a...

Has anyone ever got in trouble for cutting off those pesky rear speaker housings. I've tried to read in a loop hole (GCR) but it's not too easy. There's no real advantage to rid them , they just look...

In the past i've used the old take one out, and go see the local (well stocked) auto parts store, I do try and stick to meteric ones. They are cheaper than some silly "race" studs and work fine. Also...

Thank you so much for your quick responce, I do have the complete 86 set up, and I did note the different rail set up , I in fact tried to rob it for the 89 but to no avail. I gotta quit thinking,...

Sunday I'm doing the intake on my 2nd gen 89 rx, and was looking at an 86 set of intake runners at how straight they went, and thought (late in the game) these look better, faster,smoother,... so...

Just a quick fix for the original perplexing observation of our fine friends "red racer" via his awesome shots . If you understand the principal of the "cool plate " atop the core support aft of the...

Nice shots of the car big "C",if the only thing the boys could bag on you about was the switch and a degree or two on a bar... you must'a done something right. Those pictures print up real nice, so...