Drivetrain Project X-300
6th Gear
Joined: Sep 2002
Posts: 2,196
Likes: 0
From: Hampton, VA
Didn't see a direct reply to the earlier HP limitation questions.
Bear in mind that just like the Eaton there are different capacity Rotrex SCs as well.
If for whatever reason you should have a car deemed capable of outbreathing the current model in use adding a larger capacity unit wouldn't be anywhere near the challenge of the original design work.
I assume, but really have no factual idea, that the current unit would be a C30 rated to 400 HP.
Plenty for us "normal" people.
Bear in mind that just like the Eaton there are different capacity Rotrex SCs as well.
If for whatever reason you should have a car deemed capable of outbreathing the current model in use adding a larger capacity unit wouldn't be anywhere near the challenge of the original design work.
I assume, but really have no factual idea, that the current unit would be a C30 rated to 400 HP.
Plenty for us "normal" people.
5th Gear
Joined: Dec 2006
Posts: 727
Likes: 0
Hi Jan, this is Sharo, just wanted to say that it was a pleasure talking to you on the phone yesterday. Thank you for all your thoughts and techical informations. It really helped me alot.
Also, let me say that your work and your enthusiasem in providing faster Minis are greatly appriciated and gives us Cooper owners a newly found joy and love to improve our cars with great future products.
Can't wait for the pictures and the final results.
Also, let me say that your work and your enthusiasem in providing faster Minis are greatly appriciated and gives us Cooper owners a newly found joy and love to improve our cars with great future products.
Can't wait for the pictures and the final results.
6th Gear
Joined: Oct 2002
Posts: 1,731
Likes: 0
From: Anaheim, CA
Didn't see a direct reply to the earlier HP limitation questions.
Bear in mind that just like the Eaton there are different capacity Rotrex SCs as well.
If for whatever reason you should have a car deemed capable of outbreathing the current model in use adding a larger capacity unit wouldn't be anywhere near the challenge of the original design work.
I assume, but really have no factual idea, that the current unit would be a C30 rated to 400 HP.
Plenty for us "normal" people.
Bear in mind that just like the Eaton there are different capacity Rotrex SCs as well.
If for whatever reason you should have a car deemed capable of outbreathing the current model in use adding a larger capacity unit wouldn't be anywhere near the challenge of the original design work.
I assume, but really have no factual idea, that the current unit would be a C30 rated to 400 HP.
Plenty for us "normal" people.
I am amazed at how compact Rotrex units are.
A unit weight of 11 lbs is surely lighter than an Eaton?
This is great stuff!
Thanks Jan and Longboard for this groundbreaking effort.
7th Gear
Joined: Sep 2006
Posts: 1,559
Likes: 0
From: Orange County NY
Welcome back....
Great question!
Based on the position of the throttle body the answer would be NO it isn't needed with how the Rotrex works. We used it anyway for now to see the differences on fuel economy as we go through testing of the product. Most cars that have throttle bodies on the intake manifold need a BPV or blow off valve since the throttle body is PAST the supercharger. We will be testing many variations of the system until we are satisfied with the final kit.
jan
Based on the position of the throttle body the answer would be NO it isn't needed with how the Rotrex works. We used it anyway for now to see the differences on fuel economy as we go through testing of the product. Most cars that have throttle bodies on the intake manifold need a BPV or blow off valve since the throttle body is PAST the supercharger. We will be testing many variations of the system until we are satisfied with the final kit.
jan
Thank you everyone for the kind words!
We believe there is much promise here as the temps that we measured under the hood after driving the car were extremely low compared to the Eaton.
These temps were measured with a thermal device after driving the car hard.
Supercharger temp outlet: 130 degrees F
top of DFIC: 125
outlet plenum from DFIC to intake: 97
after shutting car down for 10min
supercharger outlet 109
DFIC 96
Outlet 92
If the numbers of this kit continue to impress I will be making these aluminum pieces out of something that doesn't hold heat like the stock units.
Overall I am seeing a big drop in temps and with a few more trick ideas I think we can lower them quite a bit more.
More data to come as we continue testing.
We believe there is much promise here as the temps that we measured under the hood after driving the car were extremely low compared to the Eaton.
These temps were measured with a thermal device after driving the car hard.
Supercharger temp outlet: 130 degrees F
top of DFIC: 125
outlet plenum from DFIC to intake: 97
after shutting car down for 10min
supercharger outlet 109
DFIC 96
Outlet 92
If the numbers of this kit continue to impress I will be making these aluminum pieces out of something that doesn't hold heat like the stock units.
Overall I am seeing a big drop in temps and with a few more trick ideas I think we can lower them quite a bit more.
More data to come as we continue testing.
Thanks Henry,
The stroker motor continues to impress and I can't wait to get a supercharger on it next. I have put the ball in motion for a cam on the supercharged version. It's tough juggling 4 projects at once but they are all moving along nicely. Based on the info in front of me it looks to be fun times ahead.
3rd Gear
Joined: Oct 2004
Posts: 238
Likes: 0
From: London, UK
Thanks Henry,
The stroker motor continues to impress and I can't wait to get a supercharger on it next. I have put the ball in motion for a cam on the supercharged version. It's tough juggling 4 projects at once but they are all moving along nicely. Based on the info in front of me it looks to be fun times ahead.
The stroker motor continues to impress and I can't wait to get a supercharger on it next. I have put the ball in motion for a cam on the supercharged version. It's tough juggling 4 projects at once but they are all moving along nicely. Based on the info in front of me it looks to be fun times ahead.
You'll have to start a new thread soon on the stroker motor...it's gonna cause quite a stir around here
My car is still on the mend but I should be motoring in July...can't wait! Two years off the road has been two years too many...
Cheers,
H
Here is some video on the first start up. I plan on having more later tonight and will try and get it up as fast as possible. Thanks for being patient as we are getting gauges/sensors installed so we can gather all of the data.
http://www.youtube.com/watch?v=XG6OQlYUzpM
jan
http://www.youtube.com/watch?v=XG6OQlYUzpM
jan
Joined: Feb 2006
Posts: 2,438
Likes: 1
From: Rancho Santa Margarita
Ka boooom
Just kidding,
I installed the innovative A/F gauge from RMW today. Now that I can see what is going on I went out for a little hammer time. Tommarow the car goes on the dyno
Here is whats on the car now.
Stock intercooler
Stock ECU
RMW Head
RMW Header
RMW Exhaust
RMW Rotrex SC kit
Alta Intake
Thats it.
The car runs great. amazing considering the stock ECU. It needs a tune but the power is there for sure. We are running 18lbs of boost. From 10lbs to 18lbs the car pulls really really hard . I drove the car hard for 15 minutes and the intake side of the intercooler was cool.
All signs say it's a go. Allot more testing and tweaking but the car pulls very hard now. I wish I could say more about todays drive but I already have two strikes against me on NAM.
Thanks to everyone for all the support and kind words. This project is still in it's infancy but it has allot of potential.
Longboard
I installed the innovative A/F gauge from RMW today. Now that I can see what is going on I went out for a little hammer time. Tommarow the car goes on the dyno
Here is whats on the car now.
Stock intercooler
Stock ECU
RMW Head
RMW Header
RMW Exhaust
RMW Rotrex SC kit
Alta Intake
Thats it.
The car runs great. amazing considering the stock ECU. It needs a tune but the power is there for sure. We are running 18lbs of boost. From 10lbs to 18lbs the car pulls really really hard
. I drove the car hard for 15 minutes and the intake side of the intercooler was cool. All signs say it's a go. Allot more testing and tweaking but the car pulls very hard now. I wish I could say more about todays drive but I already have two strikes against me on NAM.
Thanks to everyone for all the support and kind words. This project is still in it's infancy but it has allot of potential.
Longboard
Last edited by Longboard Mini; Jun 11, 2007 at 08:56 AM.
Here is some more video of the set up
http://www.youtube.com/watch?v=imZ38UMqIr8
I plan on doing some more testing before we dyno the car
http://www.youtube.com/watch?v=imZ38UMqIr8
I plan on doing some more testing before we dyno the car
I want to get a piggy back on the car so we can tune it before it goes on the dyno but the car is very driveable considering the timing maps required down low for this type of s/c are so different from an eaton. I think it has potential but only time will tell.
