Pettit Super Charger Owners
11-03-2010, 04:57 AM
#8051
Londons Yellow Peril
hey moon, how come you are tearing down your 09? isnt it fairly new? 8)
Or are you just experimenting?
PS HD version of Vid now up:
http://www.youtube.com/watch?v=yslpy...layer_embedded
Or are you just experimenting?
PS HD version of Vid now up:
http://www.youtube.com/watch?v=yslpy...layer_embedded
Last edited by california style; 11-03-2010 at 06:00 AM.
11-03-2010, 08:30 AM
#8052
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hey moon, how come you are tearing down your 09? isnt it fairly new? 8)
Or are you just experimenting?
PS HD version of Vid now up:
http://www.youtube.com/watch?v=yslpy...layer_embedded
Or are you just experimenting?
PS HD version of Vid now up:
http://www.youtube.com/watch?v=yslpy...layer_embedded
11-03-2010, 09:12 AM
#8053
OK you sum bitch (that is a friendly term in the south now), why did you have to go and do this NOW. You know I have an R3 i am doing.......aghhhh.
Wonder---can the s1 engine, ecu and harness go into the s2 and vice versa? Hmmmmmm that way I could sell my 04 with an 09 driveline and have the only FI R3 in the WORLD!!!!
What engine management did you decide to use?
According to RickE the internals are not differant at all--only a few oil channel changes, the specs and all are the same.
Calf Style--- the Miata driver had what we call the Red Mist. Its weird but people always seem to drive faster chasing a faster car.
That sure seems like a fun track---lots of left handed turns--we dont have many of those in the States. I wonder why?hehe.
OD
Wonder---can the s1 engine, ecu and harness go into the s2 and vice versa? Hmmmmmm that way I could sell my 04 with an 09 driveline and have the only FI R3 in the WORLD!!!!
What engine management did you decide to use?
According to RickE the internals are not differant at all--only a few oil channel changes, the specs and all are the same.
Calf Style--- the Miata driver had what we call the Red Mist. Its weird but people always seem to drive faster chasing a faster car.
That sure seems like a fun track---lots of left handed turns--we dont have many of those in the States. I wonder why?hehe.
OD
11-03-2010, 11:56 AM
#8056
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OK you sum bitch (that is a friendly term in the south now), why did you have to go and do this NOW. You know I have an R3 i am doing.......aghhhh.
Wonder---can the s1 engine, ecu and harness go into the s2 and vice versa? Hmmmmmm that way I could sell my 04 with an 09 driveline and have the only FI R3 in the WORLD!!!!
What engine management did you decide to use?
According to RickE the internals are not differant at all--only a few oil channel changes, the specs and all are the same.
Calf Style--- the Miata driver had what we call the Red Mist. Its weird but people always seem to drive faster chasing a faster car.
That sure seems like a fun track---lots of left handed turns--we dont have many of those in the States. I wonder why?hehe.
OD
Wonder---can the s1 engine, ecu and harness go into the s2 and vice versa? Hmmmmmm that way I could sell my 04 with an 09 driveline and have the only FI R3 in the WORLD!!!!
What engine management did you decide to use?
According to RickE the internals are not differant at all--only a few oil channel changes, the specs and all are the same.
Calf Style--- the Miata driver had what we call the Red Mist. Its weird but people always seem to drive faster chasing a faster car.
That sure seems like a fun track---lots of left handed turns--we dont have many of those in the States. I wonder why?hehe.
OD
11-03-2010, 12:04 PM
#8057
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I agree, it seems from the crazy temp spike that somehow the your getting a flame in the intake. Also having more port open acounts for the higher VAC.
11-03-2010, 02:17 PM
#8058
Oh---yes it does. 
Let me explain.
I short while ago several of us were having a discussion about the apv valve and when it should be opened et
c etc.
So being the adventurous one, i blocked mine open. As soon as I gave it more than a 50% load and let the throttle off my charge temps jumped
so high it maxed my gauge out (it goes to 300F), One second it was at 105 or so then suddenly +300 when I let off the throttle. Plus my engines vacum went to around 40. My sensor is on the upper part of the lim.
There is only one place that can provide heat like that and it was sumized by the group that the hot combustion gas's where being pushed back into the lim in some way.
Well I didnt care really how it was happening at that time, i just brought the apv back to norm.
Do you have a different explanation?
OD
Let me explain.
I short while ago several of us were having a discussion about the apv valve and when it should be opened et
c etc.
So being the adventurous one, i blocked mine open. As soon as I gave it more than a 50% load and let the throttle off my charge temps jumped
so high it maxed my gauge out (it goes to 300F), One second it was at 105 or so then suddenly +300 when I let off the throttle. Plus my engines vacum went to around 40. My sensor is on the upper part of the lim.
There is only one place that can provide heat like that and it was sumized by the group that the hot combustion gas's where being pushed back into the lim in some way.
Well I didnt care really how it was happening at that time, i just brought the apv back to norm.
Do you have a different explanation?
OD
When you let off the throttle there is suddenly a large vacuum in the uim . When the rotor is at the point where it blocks off the primary port and Aux port is still open , the rotor is beginning to compress the air in the chamber .
At low engine speeds this compression will push the air back into the uim aided by the vacuum already in the uim. At speeds approaching 6000 this gets less and less prevalent .
I believe this is also why we see very poor torque below 6000 rpm if the aux. ports are left open . A quantity of air actually cycles around the intake instead of it all being compressed .
11-04-2010, 07:49 PM
#8059
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Ok, only 6 hours over the past few days into the project and I've already painted and installed the OMP relocation bracket and OMPs plus rerouted the OMP feed lines. Minor fab work on the blower mounting bracket and then its time to cut the harness open next. Going a lot smoother then planned. Denny, its looking like its going to be easy. Wait till this is done and I'm sure your going get another blower. Hmm, what shall we do about management. PS, Brettus, then why the raise in boost temps? OD, did your boost pressure raise or spike at all when this was all happening?
11-04-2010, 08:00 PM
#8060
When the air is being ingested by the engine there is enough new air coming through to cool any recirculated air .
When you back off the throttle there is no new air , plus you will get a little air carried over from the exhaust stroke that can get sucked into the uim.
When you back off the throttle there is no new air , plus you will get a little air carried over from the exhaust stroke that can get sucked into the uim.
11-05-2010, 08:42 AM
#8061
Na --no boost spikes.
I will not try that again ---i do know that.
I will have the R3 a little longer than I ordiginally thought----i found some of the dreaded "black wire disease" in the interior harness---so i am trying to source a 06 or later harness so I can replace the entire thing. The discoloration stopped halfway up from the floor to the console----but at this point i think it is best to just replace it all.
I cant buy a new one ---that is for sure
Moon if you make this happen--you know my wife is going to come up there and beat you *** with a cast iron frying pan?
OD
I will not try that again ---i do know that.
I will have the R3 a little longer than I ordiginally thought----i found some of the dreaded "black wire disease" in the interior harness---so i am trying to source a 06 or later harness so I can replace the entire thing. The discoloration stopped halfway up from the floor to the console----but at this point i think it is best to just replace it all.
I cant buy a new one ---that is for sure
Moon if you make this happen--you know my wife is going to come up there and beat you *** with a cast iron frying pan?
OD
11-05-2010, 09:28 AM
#8062
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Na --no boost spikes.
I will not try that again ---i do know that.
I will have the R3 a little longer than I ordiginally thought----i found some of the dreaded "black wire disease" in the interior harness---so i am trying to source a 06 or later harness so I can replace the entire thing. The discoloration stopped halfway up from the floor to the console----but at this point i think it is best to just replace it all.
I cant buy a new one ---that is for sure
Moon if you make this happen--you know my wife is going to come up there and beat you *** with a cast iron frying pan?
OD
I will not try that again ---i do know that.
I will have the R3 a little longer than I ordiginally thought----i found some of the dreaded "black wire disease" in the interior harness---so i am trying to source a 06 or later harness so I can replace the entire thing. The discoloration stopped halfway up from the floor to the console----but at this point i think it is best to just replace it all.
I cant buy a new one ---that is for sure
Moon if you make this happen--you know my wife is going to come up there and beat you *** with a cast iron frying pan?
OD
11-05-2010, 12:24 PM
#8063
lol---i warned her it may only make things worst, but she said she didnt care --it would make HER feel better. God I love that woman.
hey wouldnt it be easier to just swap to an s1 engine, ecu and engine harness?
The more I talk to some "big dogs" the more I hear that the internals are no differant and the omp will only marginally improve things. Just up the oil flow in the SI, pre mix and get this--oil temps need to be lower than oridginally believed.
OD
hey wouldnt it be easier to just swap to an s1 engine, ecu and engine harness?
The more I talk to some "big dogs" the more I hear that the internals are no differant and the omp will only marginally improve things. Just up the oil flow in the SI, pre mix and get this--oil temps need to be lower than oridginally believed.
OD
11-05-2010, 10:54 PM
#8066
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Denny, got a question. What do you think of attaching some sort of pressure regulator to the boost/vac line going to the bypass valve? It would eventually be removed but it’s a idea so I can keep from pushing full boost for tuning reasons and until I can figure out if the fuel supply is enough.
11-06-2010, 06:49 AM
#8068
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Ok, only 6 hours over the past few days into the project and I've already painted and installed the OMP relocation bracket and OMPs plus rerouted the OMP feed lines. Minor fab work on the blower mounting bracket and then its time to cut the harness open next. Going a lot smoother then planned. Denny, its looking like its going to be easy. Wait till this is done and I'm sure your going get another blower. Hmm, what shall we do about management. PS, Brettus, then why the raise in boost temps? OD, did your boost pressure raise or spike at all when this was all happening?
/move the knock sensor to the blower gear case to cut the timing advance back..... LOL
OD, I wonder if opening the APV all the time caused it to run adiabatic; a 50 Mpg RX8 would be nice....
11-06-2010, 08:45 AM
#8069
you can run without the bypass if you want--boost is controlled by rpm and throttle --not the bypass.
if you want to control boost just swap the bypass for a blow off valve?
Be noisy as hell and sound like a turbine.
Swapping over to a return fuel system so that the rail fp is more constant is starting show importance---even with NA cars on track.
Adiabatic?? Smokey would have been proud......... but I dont think so lol.
06 and later s1 engine , pcm and engine wiring harness--should be plug and play?
I like the way the S2's opened the pcm case up--instead of being closed and REAL hot in the box
if you want to control boost just swap the bypass for a blow off valve?
Be noisy as hell and sound like a turbine.
Swapping over to a return fuel system so that the rail fp is more constant is starting show importance---even with NA cars on track.
Adiabatic?? Smokey would have been proud......... but I dont think so lol.
06 and later s1 engine , pcm and engine wiring harness--should be plug and play?
I like the way the S2's opened the pcm case up--instead of being closed and REAL hot in the box
11-06-2010, 10:27 AM
#8070
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11-06-2010, 10:44 AM
#8071
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you can run without the bypass if you want--boost is controlled by rpm and throttle --not the bypass.
if you want to control boost just swap the bypass for a blow off valve?
Be noisy as hell and sound like a turbine.
Swapping over to a return fuel system so that the rail fp is more constant is starting show importance---even with NA cars on track.
Adiabatic?? Smokey would have been proud......... but I dont think so lol.
06 and later s1 engine , pcm and engine wiring harness--should be plug and play?
I like the way the S2's opened the pcm case up--instead of being closed and REAL hot in the box
if you want to control boost just swap the bypass for a blow off valve?
Be noisy as hell and sound like a turbine.
Swapping over to a return fuel system so that the rail fp is more constant is starting show importance---even with NA cars on track.
Adiabatic?? Smokey would have been proud......... but I dont think so lol.
06 and later s1 engine , pcm and engine wiring harness--should be plug and play?
I like the way the S2's opened the pcm case up--instead of being closed and REAL hot in the box
11-06-2010, 12:34 PM
#8073
whines all the way home
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Moon, have you sealed the water IC inlet bung yet?
if not figure it out and if you need the welding done again let me know.
cant wait to see the new low profile setup.
if not figure it out and if you need the welding done again let me know.
cant wait to see the new low profile setup.
11-06-2010, 01:30 PM
#8074
I have contact details for the guy that designed the Powermod that I used with some success a while back . He would like to develop it for the S2 but needed a donor car . He might work with you if you were willing to do the trial and error part .
Unfortunately he is in AUS though ...
Unfortunately he is in AUS though ...
