an RX8er's rebuild thread
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what was I thinking
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From: Converse, TX
I need a 3" micrometer now
i think what Team is referring too is at the increased rpms the better the seal should be due to the action of centrifugal force on the apex seals?
At the same time--the engine will actually run at a very high rpm without a apex seal even in place.
Trick is cranking it. It doesnt run well either lol.
Team I do remember good analogies--that was a good one you posted some time back.
You used the same e shaft/ rotors that came out of the same engine right?
At the same time--the engine will actually run at a very high rpm without a apex seal even in place.
Trick is cranking it. It doesnt run well either lol.
Team I do remember good analogies--that was a good one you posted some time back.
You used the same e shaft/ rotors that came out of the same engine right?
Thread Starter
what was I thinking
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From: Converse, TX
yep I followed that (I watched all Rob's vids 2 or 3 times.)
I forget my specific weights but they were very close to eachother (its somewhere in this thread). The letters are "C"
I forget my specific weights but they were very close to eachother (its somewhere in this thread). The letters are "C"
I'm sorry but a balance my understanding helps performance and smooth Rpms ,, I've seen many many rotary builds with no balancing at all and many last a long time and perform good, I've seen some like this but I've been told, oil pressure , Gas starvation etc, not a balancing issue. Im not balancing mine and I'm ordering final parts for my build and pressing my stationary bearing this weekend hopefully so once I get my parts in is going together and hopefully soon I'll be running around. Everything is stock no port at all just my BHR ignition kit that's it. Good luck bro but if I was you I'll just get a complete new engine and start fresh buying parts sell this parts to make up for new engine you may have way better luck.
Not your new parts I mean core an engine with low low miles and start from their , swap your new parts to new donor I think with an engine with very low miles your safe as along the engine is good. I think you will save Aton and be better off. Just saying
aha= now I realize more into what Team was saying--leakage from chamber to chamber will also increase the likihood of detonation and could be a tuning nightmare--those weird a/f ratios you where seeing were likely from not having a stable combustion chamber pressure.
oem corner seals guys---come on now. This is a tried and true product. When it comes to seals on a NA street driven engine--unless you go ceramic--there are NONE better than oem. the only thing i would consider is having the taller seals/corner seals installed.
Thread Starter
what was I thinking
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From: Converse, TX
I am just not sure I want to mill the rotors for taller seals?
Cam at Pettit racing has milled a number of rotors for the taller seals. Dont attempt that yourself--it takes a laser--seriously.
if you know for certain you are going FI it will be worth it. If you are staying NA--probably not.
if you know for certain you are going FI it will be worth it. If you are staying NA--probably not.
Thread Starter
what was I thinking
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From: Converse, TX
oh no...I wouldnt do that myself....lmao....I know my limits 
I posted a link earlier were Goopy is offering that service for $250 I beleive.....FI in a plan down the road just dont know how much my will do now

I posted a link earlier were Goopy is offering that service for $250 I beleive.....FI in a plan down the road just dont know how much my will do now
Thread Starter
what was I thinking
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From: Converse, TX
I was wrong...nothing like christmas in july.... got some tools and my holster...been wait for a year for this thing.
E-shaft has 0 run out
edit: I did not measure it on the sheet....I know thats what you guys are thinking.
edit: Rob suggested to run the irons through a heat cycle 4 or 5 times before I measure them....kind of interesting......if I am going to be **** retentive I might as well be **** retentive

E-shaft has 0 run out
edit: I did not measure it on the sheet....I know thats what you guys are thinking.
edit: Rob suggested to run the irons through a heat cycle 4 or 5 times before I measure them....kind of interesting......if I am going to be **** retentive I might as well be **** retentive


Last edited by houstonrx8er; Jul 16, 2012 at 06:31 PM.
I told u it's not e shaft. It rarely fail, unless some idiot torque the belt down with an impact or the bearing completely failed and chew the e shaft at the same time
Throw the apex seals away, go OEM or ceramics, new housing, DONE
Throw the apex seals away, go OEM or ceramics, new housing, DONE



