Remanufactured Rotary engines!!
02-10-2008, 07:41 AM
#151
It's kind of funny that you asked this question at this time. I was a little upset with an engine swap I saw on the forum yesterday and I was discussing what would be required to have a reliable 500hp Renesis with our engine man Mr Engman. I thought he would have said that the shortcomings are insurmountable but I was very happy to hear him provide some hope. This would be for people going well beyond where you are talking about but I'm excited anyhow. I'll work out some pricing for you.
Paul.
02-10-2008, 12:29 PM
#152
Paul, would you and Rick agree that there aren't too many machining processes that are absolutely necessary for the boost numbers/h.p. increases along the lines of what morkus is asking? I suppose there wil come a point where e-shaft balancing, 3MM apex seals, hand-cut sides, etc., will be necessary but I don't believe it to be on a street car and less than 400 h.p.
What do you guys think?
BTW, I can attest to the importance of new housings, especially if you are one of the low OMP volume victims. My compression is in the mid-sevens, at best, and I can't wait until I get to AZ so I can pull the engine and swap them.
What do you guys think?
BTW, I can attest to the importance of new housings, especially if you are one of the low OMP volume victims. My compression is in the mid-sevens, at best, and I can't wait until I get to AZ so I can pull the engine and swap them.
Paul.
02-10-2008, 12:44 PM
#153
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That's an excellent question. I think new rotor housings are some of the most important items I would start with in an FI application. Beyond that, in that boost range with a moderately sized turbo, cooling and tuning are your next priorities.
It's kind of funny that you asked this question at this time. I was a little upset with an engine swap I saw on the forum yesterday and I was discussing what would be required to have a reliable 500hp Renesis with our engine man Mr Engman. I thought he would have said that the shortcomings are insurmountable but I was very happy to hear him provide some hope. This would be for people going well beyond where you are talking about but I'm excited anyhow. I'll work out some pricing for you.
Paul.
It's kind of funny that you asked this question at this time. I was a little upset with an engine swap I saw on the forum yesterday and I was discussing what would be required to have a reliable 500hp Renesis with our engine man Mr Engman. I thought he would have said that the shortcomings are insurmountable but I was very happy to hear him provide some hope. This would be for people going well beyond where you are talking about but I'm excited anyhow. I'll work out some pricing for you.
Paul.
02-19-2008, 05:55 PM
#158
It's all apart now. Rather interesting. No huge surprises, some affirmations and some interesting observations. Let me know if I should post the pics and other findings here or not. I'm thinking of doing another thread for the autopsy.
Paul.
Paul.
02-19-2008, 06:24 PM
#161
https://www.rx8club.com/series-i-tech-garage-22/lets-look-expo1s-over-100k-renesis-motor-138402/
Post it in the link above, good area and lots of views
Post it in the link above, good area and lots of views
02-19-2008, 06:49 PM
#162
https://www.rx8club.com/showthread.php?t=138402
Post it in the link above, good area and lots of views
Post it in the link above, good area and lots of views
)Paul.
02-21-2008, 11:31 AM
#163
Our current pricing on remans is $2700 and caters to many new parts being installed. The additional core charge of $1000 will be returned based upon the serviceability of rotor housings after Mr Engman has opportunity to dis-assemble the core. In other words, we will ship an engine in advance of receiving a core, if we evaluate that the core has wasted rotor housings we will charge $300 each that will be deducted from the core refund. The customer is also responsible for shipping charges. We offer a one year unlimited mile warranty (From date of invoice) that covers parts only and does not cover abuse of any type, poor installation or failure due to components outside of our engine. There is ABSOLUTELY NO WARRANTY provided for forced induction applications (Turbocharged or supercharged) even though we may have some of the best solutions for these.
We will build engines with brand new rotor housings for $3700 if you request in advance for them, plus core. We would then, not have to factor your housing condition into the core refund equation.
Thanks again to all those who have bought engines from us and in advance to all those who are considering a 'Better Renesis Rebuild'.
Paul.
We will build engines with brand new rotor housings for $3700 if you request in advance for them, plus core. We would then, not have to factor your housing condition into the core refund equation.
Thanks again to all those who have bought engines from us and in advance to all those who are considering a 'Better Renesis Rebuild'.
Paul.
02-21-2008, 12:07 PM
#166
I was only asking to check and see if I was understanding correctly.......and I wasn't kidding about selling me a pair. I am gonna need them after I get to AZ and re-rebuild my engine. $700+? My point is made even further!!!!
On that note, I am gonna need those 50 TB o-rings soon so I'll be calling in a few days. Ya gonna wait by the phone for me?
$700+? My point is made even further!!!!On that note, I am gonna need those 50 TB o-rings soon so I'll be calling in a few days. Ya gonna wait by the phone for me?
Already waiting. Have you started dialing yet?
PT
02-21-2008, 12:08 PM
#167
No means yes
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Paul,
I was wondering - as far as wear on the rotor housings, what side of the housings sees the most wear? Is it pretty even overall or are there certain regions which typically exhibit the most wear?
Thanks!
-Dmitri
I was wondering - as far as wear on the rotor housings, what side of the housings sees the most wear? Is it pretty even overall or are there certain regions which typically exhibit the most wear?
Thanks!
-Dmitri
02-21-2008, 01:57 PM
#169
All I can say is this is the sex. I don't think I need one yet but I sure do want one anyways, my car has on 10,000 miles on this (second)engine, and I worry cause Mazda's reputation for remans isn't good and who know if the previous owner treated her right.
So a huge thank you to Paul and Rick for providing such a service to us all, You two sirs are scholar's and gentlemen.
So a huge thank you to Paul and Rick for providing such a service to us all, You two sirs are scholar's and gentlemen.
02-21-2008, 02:36 PM
#170
I've seen some interesting things on the housings but the most common is distortion of the spark plug region. The motor that I'm dealing with presently has chrome cut away on the edges of the rotor housings both sides of both housings.
Paul.
02-22-2008, 03:03 PM
#175
Yes. There is too much missing. The other thing is a lot of builders aren't looking for the sparkplug distortion that I mentioned and will totally miss it. The apex seal will have to skip over this region every time it goes by which is neither healthy for compression nor for preventing gas leakage that could result in engine fatality.
Paul.
Paul.