*the sprintex owners thread* - Page 23 - North American Motoring


Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

*the sprintex owners thread*

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  #551  
Old 06-20-2017, 05:20 AM
CSP CSP is offline
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I doubt you'll find a gen 1 kit. AFAIK, just check the oil fill bolt to verify as the 2nd gen has a dipstick, 1st gen doesn't.

For those who do have a gen1 - bytetronik has the vented filler plugs again. Well worth $20 for peace of mind.
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  #552  
Old 06-20-2017, 03:10 PM
Bytetronik Bytetronik is online now
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Quote:
Originally Posted by massmini03 View Post
ALSO LOOKING INTO PURCHASING SPRINTEX

At 128k, I'm getting nervous about the current life of my stock Eaton.

Any specific dealers? Are there any possibilities of getting an older version w/o fixed oil seals, etc?
We are also a Sprintex dealer and can provide you a quote. We also sell a couple of improved parts for the Sprintex. One is the GPR Tensioner; the other is the vented filler plug to address the "oil seal issue".

Quote:
Originally Posted by CSP View Post
I doubt you'll find a gen 1 kit. AFAIK, just check the oil fill bolt to verify as the 2nd gen has a dipstick, 1st gen doesn't.

For those who do have a gen1 - bytetronik has the vented filler plugs again. Well worth $20 for peace of mind.
Thanks for your support @CSP. We just got all the technical specs with all Gens of the Sprintex units (MINI, Jeep, Honda, FRS/BRZ, etc) and will be able to provide the vented filler plug to all models starting on July 8th
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  #553  
Old 06-26-2017, 08:44 AM
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How is everyone's fuel economy with the sprintex? Has anybody been tracking?
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  #554  
Old 06-26-2017, 12:17 PM
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Your millage will depend on your tune, me personally, I avg. 27.0 everyday and avg'd 29.7 hwy on my trip to MOTD.
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  #555  
Old 06-27-2017, 05:35 AM
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I'm untuned AFAIK. Swapped heads and still not getting the economy I was hoping for. So I came here hoping that someone else was getting as low as me. Guess I need to figure out what the issue is still.
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  #556  
Old 06-27-2017, 09:22 AM
checkers checkers is offline
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Why would you even worry about your gas mileage when you are trying to increase your HP. It doesn't make much since to me. Unless you are down below say 25 mpg I sure would not worry about it.
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  #557  
Old 06-27-2017, 09:49 AM
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Why would you even worry about your gas mileage when you are trying to increase your HP. It doesn't make much since to me. Unless you are down below say 25 mpg I sure would not worry about it.
That's exactly the issue. I'm not worried about a couple mpg, but I'm worried about something being wrong.
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  #558  
Old 06-27-2017, 02:57 PM
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I get 21 MPG with just a 17% pulley, intake and tune. No Sprintex. I don't get all this nonsense of people with 250HP cars getting almost 30 MPG. That's just insane to me. Unless they're just reading the OBC and not actually calculating it themselves.
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  #559  
Old 06-27-2017, 03:08 PM
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Originally Posted by sevin View Post
I get 21 MPG with just a 17% pulley, intake and tune. No Sprintex. I don't get all this nonsense of people with 250HP cars getting almost 30 MPG. That's just insane to me. Unless they're just reading the OBC and not actually calculating it themselves.
Great tunes? At 21mpg I'd be looking into some stuff... That seems like something is wrong. Anything below 25mpg I'd be investigating unless you're beating the hell out of it everywhere you go.
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  #560  
Old 06-27-2017, 05:12 PM
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Great tunes? At 21mpg I'd be looking into some stuff... That seems like something is wrong. Anything below 25mpg I'd be investigating unless you're beating the hell out of it everywhere you go.
Exactly, now or before, I've never gotten below 24 mpg, and that was with my worn out motor, and thrashing it heavily. From past experience, if I would have stayed under 70 on the way down to MOTD, I would have gotten close to 32 mpg Hwy.
But again, it's all about the tune, let's not forget, most of tuning is getting your performance parts to work as efficiently as possible, and efficiency = mpg.
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  #561  
Old 06-29-2017, 03:31 PM
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I still need to drive and monitor mileage, but I think I'm going to get my injectors flow tested. Send one out and get it done for $7 or whatever it is. Just make sure that the PO didn't put 380's or more in there.
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  #562  
Old 08-28-2017, 11:09 AM
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HI, new to the forum here. I have a 05 R53 JCW. my SC needed a rebuild and decided to go Sprintex.. just installed the Sprintex SC a month ago...

She was much faster then before for a week or two then started having issues with throttle response I'm still working out bugs since..

Pretty much stock besides doing the VGS and K&N filter, and airbox flap mods.
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  #563  
Old 08-28-2017, 01:54 PM
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Hey rksnow. Welcome to the fam.

Elaborate on the throttle response issues?
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  #564  
Old 08-28-2017, 02:38 PM
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HI CSP, great to be back here. I started another thread (under 1st gen problems(I think)asking for help. didn't want to hijack this one, but basically I don't have throttle/power in the higher RPM range 3k+. car ran great for a few weeks after SC install, then started getting various codes and DSC light, going into limp mode, changed Map/TMap sensors, Bypass valve, checked for vacuum leaks, No codes currently but just seems like the pedal becomes unresponsive, builds boost and engine revs but nothing or wait then power kicks in and goes out again. Changed the harmonic balancer today thinking it separated but still the same symptoms and no codes
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  #565  
Old 09-13-2017, 03:33 AM
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What do the plugs look like? And are the stock plugs....


I have a mild Mini, JFE - Just fast enough.


The Sprintex was a big improvement. And the fuel mileage did go up. The stock plugs don't last more than a couple K. They don't look terrible but if you compare them with an iridium plug, same mileage, the color is different. The 2002 - 2004, cars, many have a flat spot at 3000rpms - JCW 380s with colder plugs took the flat spot out of my car - I also have a Cosworth head. The flat spot could have been exaggerated with the new SC - The duty cycle of the stock injectors could be at their limit - this would happen after and during some hard driving... You could get an SEL.
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