You offend me. Im an engineer by trade and if I wanted to learn I COULD. I dont want to and Im sure tyler can say the same.


Tyler and me live a few miles from each other in California. We have the best rotary builders on the planet here. I can go 15 miles in any direction and get my car worked on. I dont have to ship the thing. Maybe you live in boise idaho, but we dont.

Also, rick took my car in on tuesday and will have it back mid next week. that includes all the porting and machining that I need done. Im happy with that.

Im glad you didnt' mean about the little girl comment, yea right.

 

uh, being an engineer has nothing to do w/ being mecahnically inclined. there are plenty of engineer's with 2 left thumbs.

soCal baby.

again, lighten up. you're gonna have aneurysm if you take forum posts seriously.

 

Just to add my .02, I had Rick rebuild my engine with a mild street port and I passed smog perfectly fine, this was with a DP and high flow cat also. I have to pass the stringent rolling dyno, so if I can do it I'm sure you can as well. Just thought that might make the decision easier. BTW a streetport really woke the car up.

 

Dude, thanks!!

Rick told me the other day "I like for my customers to pass smog". How many miles have you put on your engine since the rebuild and how as it held up? You can PM me if you need to.

Thanks so much!

 

just don't rely on someone else passing as an indication you will too! all engines are differenet, and even the identical mods, they will make different power, put out different emmisions, etc. especially since you're in california, when doing emissions testing, might as well put the precat on, and exchange for the downpipe afterwards.

 

Well as said before I passed fine with no precat, and as most will agree a precat does not really effect emissions testing as it is mainly for cold operation (startup). In the event you have trouble add a couple of gallons of denatured alcohol to the tank with 1/4 of gas. This has helped me pass 3 of my rx7's that were all borderline gross polluters before, it also worked for a few other local guys. One thing to note is that you need to drive very carefully with this in the tank, try not to boost much and go fill up with premium right afterwards and be easy until the next fill up. As for my engine I have put about 18K on it since it was rebuilt and it still runs like a champ. Rick does great work, I wouldn't hesitate to recommend him. PM me if you have any other questions.

 

well, i didnt read all three pages, but no one so far has mentioned anything about "HAVING" to use 3mm seals. its cheaper to "cut" those worn out apex seal grooves rather than buying new or "in good condition" rotors. i got 3mm seals put in mine.

paul

 

youre right, pulling an engine is easy. coming up with the money and mustering up the knowledge to put it together right and with a little bit of innovation is the key to being "good". why in the world would you be so pleased and tickled about being able to pull a motor out. everybody knows that "taking something apart is easy. . . its putting it back together that is the challenge".

well see who the little girl is when "install time" comes around.

paul

 

what do you think of the 3mm seals? Just curious, do you notice any difference or does it "feel" the same? I got 3mm put in mine. thanks.

 

well, i am still in my break-in period. the car idles like never before. . . very smooth. i dont know what everyone else gets on vaccum, but i seem to idle at around 10-12 inHg. . . it may gain more vaccum once break-in is done.

paul

 

10-12? YIKES....

I got 470-480 on my power FC with my old engine till my apex puked.

My new engine is street ported, I hear you get less vaccuum with that.

 

youre right and the 3mm seals dont help either. they actually seal less than 2mm seals. its like the "bed of nails" tricks that the freaks do. the spring pressure is spread out across a larger area on a 3mm seal. . . less concentrated. . . get it. . . im sure you do as you stated that you are an engineer of sorts. about my vacuum (i knew i was spelling that wrong ), im reading from my boost gauge so it is in "inHg" not "mmHg" and its also only 110 miles old right now.

paul

 

the problem w/ that is if you need to do a smog test on a rolling dyno- you don't get to drive the car, a low paid tech who doesn't give a sh@t about your car gets to drive it.

 

all great, but i was only commenting on the pulling part. =)

 

I don't really know the answer to this, but why is is that every article I read of suped up cars and every mainstream shop I talk to always recommend 3mm seals if they suck that bad.

I dyno'ed at 367 rwp with a mild streetport and stock turbos at 14 psi or so which I don't think sucks especially for having a HF cat.

I hear the 2mm argument all the time here and it sounds persuasive but why don't I see anyone actually practicing it? At least not who've I've talked too or have read.

There must be something to that 'error of margin'. No?

David

 

hopefully it won't cost 6 million dollars!

 

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the bed of nails thing. . . lets say you step on a pallet with about saaaaaaaaaaaaaaay 1 1/2 nails/sq. in. im pretty sure youll see some penetration. now, if you raise the number of nails you have per square inch to about 4 or something like that (or higher. . . im not a carnie!!!), you could step on it and walk around w/o problems. itll hurt a little bit, but no penetration will occur. now, think about your apex seals. the springs (on a stock setup) only have to push against 2mm worth of metal. the pressure is more concentrated and to a smaller area. the 3mm seal has a wider surface area, the spring pressure is spread out across the seals face. think about this one. cut a stick of butter with a knife. . . pretty straight. now cut it with the handle of the knife. . . pretty messy this time.

3mm seals are supposed to be less prone to skipping on the housing surface as well. i havent personally witnessed this, so i cant comment on it. thats gathered from the pros.

i think the 2mm seals are a great idea if you know exactly what youre doing. 3mm seals give us "po-folks" some room to play.

paul

 

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