Were your RA seals the super seals? How much boost was that on and was it tuned right? Just wonderin.

To OP. Very nice car. Get that back together and break the 800+hp. How much boost is your turbo good for and are you still on the stock trans?

 

I was using RA Classic seals, the super seals were not available at the time. just over 20psi setting, did many drag runs tune was spot on, 10.9 afr, it was too small an exhaust housing on the turbo for the large porting I had causing an excess build up of heat for the engine, didnt let it cool down between runs (12 runs in the space of two hours all in the low 11s), the exhaust ports when we cracked the engine apart had a white coating along with the Turbine blades. So its not the seals fault directly. Just a shame they didnt warp instead. The seals did ok I suppose as I did a total 6 drag meets on them (approx 60 odd runs in total)

So now have gone for a larger turbo (T51 KAI) to suit the porting now along with a 4 inch exhaust and this time I will be running an EGT probe, hopefully if I do run into trouble the seals will just warp/bend like PTS claim.

Just been put back together here is my blogsite if you wanna check my progress over the next few weeks

http://pistonkilla.blogspot.com/

 

I have had excellent results with the SCR's and didn't get too much time with the PTS seals. Either can save you a good amount of money should something unexpected happen.

~S~

 

i would say the atkins seals held up really good for as much as the engine was put through. Sure it was alot more than they was designed for. I have always run the atkins and have had them do everything i need

 

cant wait to see her back up and running.

 

damn...thats not good...i hope mine lasts a while =\

 

i think ernie got more than normal use from a motor pushing this hard...there is never going to be a 700+ HP reliable 2 rotor street car

 

shun the non-believer... shunnnnnnnnnn

 

I thought maybe some of you guys would be interested to see what we found when we tore the engine down. One apex seal failed, one dowel pin broke, cracking of the center iron, along with signs of the rotor contacting the housing.

I thought it was interesting to see the apex seals appear to have reached it thermal limits. The seal is bowed from the lower center out.

 

WOW holy bat man very interesting, what you think caused it ?
that one top apex seal looks like it was disintegrating

 

I believe the quote is, "Holy rusted apex seal Batman!"

 

Heat! We're gonna run more pre-mix and a bit richer a/f. Won't be long!

 

did you guys go leaner on the Q16/AEM tune?

 

Q16 needs more fuel then C16.

 

sever detonation.. case closed..i hope your going 3mm next time ernie..

 

Some of you may have misunderstood. The car didn't detonate. It was ran approx. 10% richer than C116. Nothing to do with that either. You have to run a bit richer a/f ratio at 37-40psi range than you do at the 30psi range. Most of you don't need to worry about this, lol..The new engine will have NRS 3mm ceramic seals. Roberto, not saying the car never pinged in its life but thats not why it died this time. As you know when you break because of detonation the tip of the apex seal usually breaks. This motor had 2 warped apex seals and this last one looked like a termite was eating at it, lol. You can tell it was all the heat. No big deal. Rome wasn't built in a day.

 

been there n done that, I think you know what to do to correct "that" problem
jus wondering did you get data from your egt's ? (egt) bet them sum bitches were HOT !!!!!!!!!! when do you think it will be up n runnin ? there i go w/ 100 Q's !!!!!! lol ........

 

Lee,
Hopefully in a couple weeks. I just overnighted new housings, irons, rotors, and stationary gear from Mazdacomp. Ray sent the turbo out today.

 

Ballin.

 

"Ray sent the turbo out?"
Does this mean that the turbine wheel was damaged?
I thought that Atkins seals dont damage anything when it breaks?

 

Who said that? Atkins seals has never been marketed to bend
like RA seals.. I used Atkins years ago and the tips always broke when I detonated

 

Did you look at the pic of the apex seal? It went somewhere, lol. That somewhere was through my turbo.

 

Ernie,


I am expecting 800rwhp on the next run.


Do it!

 

Ernie, did you ever beat my 10.048 @ 119 mph pass ?

 

Actually, we're gonna richen it up a bit so it'll last longer, so if anything it may make a bit less. Not like I need 780whp to run 9's, lol..