anyone experienced any problem with their mcs that has higher rev limit?

i'm thinking of getting a new ecu or modify my existing ecu to raise my rev limit to 7400rpm

can the stock internals handle the extra rpm???
will the supercharger over heat???

 

My Evotech software has a rev-limit (with the 15% pulley) of 7200RPM. This is the max you can go before exceeding the specified redline for the supercharger.

If you don't have the 15% pulley, the engine can safely handle 7500RPM (which is the redline Evotech does for the stock-pulley MCS).

...hope this helps,
Ryan

 

tks. for your prompt reply

i had the pulley and i'd like to know if raising the rpm to 7200 is worth doing it.

i know that the hartge car has a rev limit at 7400rpm.

one question - that means the evotech ecu for stock pulley mcs is DIFFERENT from the ecu for 15% ecu, correct?

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yea, I don't know what Hartge has done to their MINI....

...but the Eaton M45 supercharger has a specified redline of 17,200 RPM.
The stock pulley (2.06:1) MCS with a stock redline of 6950 spins the supercharger at 14,317 RPM. The 15% pulley (2.369:1) at stock redline spins the supercharger at 16,465 RPM. The 15% pulley with 7200 redline spins the supercharger at 17,057 RPM. The max engine RPM with the 15% pulley and keeping the supercharger below its' spec'd max is 7260 RPM. Anything higher and you risk damaging the supercharger.
If you have the stock pulley, you can spin the engine to 8349 RPM and not over-rev the supercharger, but I doubt the engine could handle that RPM!!!

I can't imagine that Hartge would put a 15% pulley and rev the engine that high, because doing so would over-rev the supercharger (obviously NOT good).

As for your question: yes, the Evotech ECU for the stock pulley is different than the ECU for the 15% pulley'd cars.

Cheers,
Ryan

 

thank you so much for your reply.


what have you done to your mcs??? do you mind sharing???

 

It's no trouble at all :smile:

I have the ALTA performance 15% pulley
Evotech software (with the 7200 RPM redline)
Madness cold-air intake
H-Sport springs
H&R Trak+ 5mm wheelspacers
and EBC Green stuff pads, to keep my white S-lites (aka "boat anchors&quot clean

---> I can't seem to find any good info on the Hartge kit, do you have any links?
Cheers,
Ryan

 

here's a link of a hartge mcs owner and his rev limit is set to 7400rpm.

hartge mcs

 

>>It's no trouble at all :smile:
>>
>>I have the ALTA performance 15% pulley
>>Evotech software (with the 7200 RPM redline)
>>Madness cold-air intake
>>H-Sport springs
>>H&R Trak+ 5mm wheelspacers
>>and EBC Green stuff pads, to keep my white S-lites (aka "boat anchors&quot clean
>>
>>---> I can't seem to find any good info on the Hartge kit, do you have any links?
>>Cheers,
>>Ryan

Rye,

How would you describe the Evotech ECU upgrade? Does it provide a noticeable difference over the straight pulley mod? If so, where do you notice the difference(s)?

Thanks,
Raven

 

My race cars are running well over 7500 rpms. So, it is just a matter of: what you want to do, how much you want to do, what you want to spend and if you like to push the envelope.

Contact me at:

tracy@diamondracinggroup.com


Thanks

 

Raven, I got the pulley and the ECU simultaineously, so I can't really comment on them individually. I've noticed, however, that my cold-start problem is gone and it's easier to launch without the stumble. The 7200 RPM redline is pillow-soft, and very fun too

 

Rye,

Don't know if you had the stumble problem, but my question is, if you had it did the new ecu get rid of the stumble?


Thanks Peter

 

Hey guys, what exactly determines the limit for what a specific engine can handle? If it's something near the mid 7k RPM's, why are the factory rev limiters considerably lower? Sounds like this tritec engine is pretty strong, but what determines how fast it can spin?

 

>>The car has about 30 more HP at the crank with the pulley and ECU, and my butt-meter can feel every horse

Thanks Rye, just what I was looking for.

Raven

 

--> itsthesize: I did have the stumble, because I have 33.3. The ECU upgrade did seem to smooth it out a bit, but the car still has a predisposition to do it. Evotech hasn't focused their remapping efforts on "the stumble" or the "cold-start" issues as much as trying to get the last horsepower wrung out. It is worth noting, however, that since getting the upload, the car hasn't had a cold-start problem since! (in the past, it would never start the first crank when cold)

--> Antranik: an engine's redline is the function of ALL its' reciprocating and moving mass. The factory redline is in place to keep the engine as idiot-proof as humanly possible. I've heard of racing-MINI's that rev their engine to near 8,000 RPM with little done to the valvetrain, however running those speeds on a road car for a while would not result in a long-running or reliable vehicle. Springs will weaken quicker, bearings will wear much faster, rings and gaskets will seal poorer. As the saying goes: "speed is in direct proportion to money spent!"

Cheers,
Ryan

 

Thanks Ryan!

 

sorry, this is gonna go off-topic for just a second.....



the angrybeats.co.uk homepage makes the CD-tray on my CDRW drive pop open! i thought it was a gremlin, but no joke. every time i visit that page (and subsequently close the tray), it pops open again (with no CD loaded).

that's some freaky ****.

 

I agree with ya Socks, it's total abuse of power to program in crap like that (not to mention a security risk!)

[back to our regularly scheduled thread]
--> SMG: what software do you have in your MINI?

 

Ryan,
Your car is the cleanest Mini I've ever seen.
Do you think that adds any hp.....?????

 

Rye,

How does the rev-limiter work with the RennTech chip?

I'm getting that chip with my MCS.

Thanks.

 

i have the superchip software that works with the pulley
it's a kit from a UK based company and the name it GGR.

 

Hello SMG,

As you say the Hartge conversion ups the rev limit to 7400rpm...

I do quite a few trackdays where I have seen 7mpg on my car so I'm hardly gentle on it...

I havent had any problems so far apart from a drive belt tensioner assy was squealing like a pig after the morning seesion on the track...

The dealer replaced the whole assembly without any problems, it was just a bearing or something apparently...

To be honest with the Hartge conversion over 5.5k is where the power is thats why I'm not shy in revving the car...


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