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The mkiv Supra Owners Club

Increase your rev limit, sir?


Ian C

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See attached snippet of datalog :)

 

The stock rev limiter is 6750rpm. Mine is now 7200rpm :lalala: I think the E-Manage Ultimate is the first piggyback to achieve this capability :D

 

OK, the fuelling is a little rich and a little spiky but this was just trying to get the feature to work - the point is, It Can Be Done, and I know a few people are interested in this :)

 

-Ian

revlimit.jpg

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Guest Terry S
See attached snippet of datalog :)

 

The stock rev limiter is 6750rpm. Mine is now 7200rpm :lalala: I think the E-Manage Ultimate is the first piggyback to achieve this capability :D

 

OK, the fuelling is a little rich and a little spiky but this was just trying to get the feature to work - the point is, It Can Be Done, and I know a few people are interested in this :)

 

-Ian

 

Mate you rock, keep it up!

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Anyone up for an Emanage Ultimate group buy again?

NIC, i dont need this yet as i'd rather get everything else i need installed first as what im using at the moment works but can you PM me the price including everything i need for the supra, all harness's etc. Or post up the price in your shiny new trader section:D

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Guest Terry S
Anyone up for an Emanage Ultimate group buy again?

 

Nic I have told a few people to contact you for them mate, Matt H to fit them, and for Chis to tune them, lets see what happens.

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The E-Manage Ultimate takes over firing the injectors above a certain RPM - so the stock ECU goes "Nope, my bat my ball my game" and stops firing them and the EMU goes "actually, I have a bat and ball right here" and fires the injectors according to a duty cycle or duration you've set up. The tricky bit is a) plumbing in the fuelling for the extended rev range, and b) working out the wholly undocumented "hold" time value.

 

And yes I'm running a manual. I saw 127mph in 4th :nana:

 

-Ian

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NIC, i dont need this yet as i'd rather get everything else i need installed first as what im using at the moment works but can you PM me the price including everything i need for the supra, all harness's etc. Or post up the price in your shiny new trader section:D

 

Lee, I'll post up prices and details in my spanking new section shortly :D

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See attached snippet of datalog :)

 

The stock rev limiter is 6750rpm. Mine is now 7200rpm :lalala: I think the E-Manage Ultimate is the first piggyback to achieve this capability :D

 

OK, the fuelling is a little rich and a little spiky but this was just trying to get the feature to work - the point is, It Can Be Done, and I know a few people are interested in this :)

 

-Ian

 

i'll try and put this without sounding a complete idiot...

 

by increasing the revs what advantage does this have to a BPU supra ? if any? doesn't the bhp start to dip at 6,500 rpm anyways?

 

go easy on me please...:giveup:

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Yes a BPU won't massively benefit - you'll notice Ian runs a T67...so he really wants to avoid shifting into 5th on the drag strip...every gear change cost time.

 

Though I think he'll have to run up to 7600rpm to make it.

 

But the point of this is to show that the new features on the EMU are making it a better bet than the EMB or a crappy SAFC.

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i'll try and put this without sounding a complete idiot...

 

by increasing the revs what advantage does this have to a BPU supra ? if any? doesn't the bhp start to dip at 6,500 rpm anyways?

 

go easy on me please...:giveup:

 

Yeah, pointless on stock cams, you are quite right.

 

According to the dyno sheet I got, my power peaked at 6631rpm :) (it's hard to tell if it's peaked or the rev limiter cut in at that point) So with cams you can get significant power above the stock rev limiter, and I think this would apply to hybrids as well as singles, possibly BPU but not sure how much (the turbo flow might be tailing off even with the engine breathing sorted out)

 

So, it's not a futile excercise on the power front, and also it'll let me do 200mph :nana:

 

I shan't be reaching those heady heights that often I can tell you, but it's nice to know it's there :devil:

 

-Ian

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Yeah, pointless on stock cams, you are quite right.....with cams you can get significant power above the stock rev limiter, and I think this would apply to hybrids as well as singles, possibly BPU but not sure how much

 

So, it's not a futile excercise on the power front, and also it'll let me do 200mph :nana:

 

-Ian

 

This is exactly the reason I was interested in this unit - I was watching a set of JUN cams and cam gears on EBay recently and tempted to buy...they went for about 400 quid - but I didnt go for them as I didnt know if they would enable me to make use of the raised rev limit - no point in 8000rpm if the power was going to fall right off. they were 272's btw - would that have been too aggressive for a track/road car (and I dont mind about lumpy idle) assuming they were being used with a t67dbb for example.

 

cheers

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