Good results today at Lynx racing
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Headline figures good but if you correct the gearbox losses and plot the torque curve, then its all looks a bit T3 and PH2.

Torque is falling after only 4500rpm. If it is a high spec then something is not working right. Most likely a restrictive turbine.

If we knew the spec we could suggest solutions :)

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

when I've sorted oil temps then i will push it, if it was a T3 you wouldn't be anywhere near that with 14psi

16V project underway

SIMPLES

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

ah good work

16V project underway

If you want can do another graph with the calculated flywheel output.

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

Edited by Turbo Tim on 23rd Dec, 2013.

16V project underway

I've changed my mind. The problem is that the lower rpm figures are unrealistic.

To get 200 ftlb at the flywheel from a 1380 at 14 psi would need about 115-120% volumetric efficiency, highly unlikely. There are a number of online calculators that would verify this.

We know from past experience that dynos can be anything up to 30% out.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

maybe if you go to baldwins, he is 32 bhp out

Edited by Turbo Tim on 24th Dec, 2013.

16V project underway

I think its a sun ram 11 or 12 paul , so should have a calibration cert from sun.this is normally done quite regularly and the sun rr's if calibrated are in my op the most accurate rr's ,although the ram 11 does the % losses whereas the 12 does the coastdown meausurement in real time . (but I am biased )

so if you give them a call to put your car on there ,ask about when it was last calibrated. if its the 11 then you can use our losses from Northampton?

looking at the graph is it possible that it was a gear change where the dip is and the higher trq below was a lower gear ?

Edited by robert on 24th Dec, 2013.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

I should add that, whatever ,whether 190 or 220 the top end bhp from a new engine of parts not tried before, and a new inj system is very impressive .

edit to add ,that power curve would make a lot of sense if supercharged..

Edited by robert on 24th Dec, 2013.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

that torque curve looks very much like one from a BMW 16v conversion especially with the huge dip around 4k

Could the dip be some wheelspin?

No doubt this is a decent engine developing good power, so lets not get hot under the collar about the actual figure.

Some under bonnet photos would be nice though!

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Well in 3rd great if was trying to climb out of the rollers on boost, the rollers are smooth.

16V project underway

Wheelspin as torque peaks based on Wil's comments.

Have you pulled plugs since having it setup Tim? It would be interesting to see if there is any obvious imbalance in fuelling from the inners to the outers.

If something is worth doing, it's worth doing half of.

not checked, will look today, doing some work on her today

16V project underway

Cool keep us posted.

If something is worth doing, it's worth doing half of.

Lets put it this way, its fast enough to go to the chippie in and produces enough torque to drag a scrote out of the workshop . . . . .lol

Plugs as you see them from the front of the engine so left is 4

http://s1336.photobucket.com/user/timinitu...3f6a7b.jpg.html

16V project underway

you calling me a scrote Steve? lol

16V project underway

Cool. Outers a little richer? I thought typically the outers ran leaner?

If something is worth doing, it's worth doing half of.

Lol Tim scrotes who tried to break in

Looks like the new generation bmw engine graphs with thoes fancy turbos, boost from very low downvery quick up to max torque and kinda smooth (geuss it would look smoother without whwheelspin) are you using the 1series small engine turbo? Twin screw vnt or some shit.

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-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis

It's all Carls fault, the wheels are too light

Seriously, these modern dynos work out the power from the acceleration of a mass of the rollers and the car. They assume that the wheels of a 200hp car are much heavier and have a higher polar moment of inertia than 10" split rims. Just an opinion.

I'm not sure about the dip, maybe just a carry over from the on-boost spike. However, I have seen that a lot on 8/16v engines and also 5 porters with short intake runners.

Other than that, the top end numbers usually work out just close, in which case the results are probably very good.

Just a small adjustment to injection timing needed to get those outers a little leaner. But that depends on the injection strategy. I would reduce the timing if I was using the MS3.

Edited by Paul S on 24th Dec, 2013.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I think its not a modern dyno ,read my post up the page , paul . do keep up

( I may be completely wrong !)

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM