were back LOL throttle body zs - Page 19

welshone · 16-06-12, 07:17 AM

Quote:

Originally Posted by grimmy

Been up for 24 hours straight unable to sleep, had a look at this thread last night guess what? just woke up,easily the best cure for insomnia on the internet this,keep it up lads.

Drew · 19-06-12, 05:31 AM

Quote:

Originally Posted by Rovermgparts

Steves going on holiday and has asked me to run the car for a month to make sure it has no gremlins.

George

its a good idea to run it for a month to iron out any problems, but surely that means you have to go get it!
then post the graph up

Drew

grimmy · 19-06-12, 08:48 AM

MG6Turbo · 19-06-12, 12:01 PM

Plots are here at last !!!!

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Let the debating begin.

Please remember these are hub figures and not flywheel !!!

G

ZS · 19-06-12, 12:02 PM

Rover 45...

Looks good to me

and should put a few of the doubters to rest

MG6Turbo · 19-06-12, 03:33 PM

One would hope so lol

Drew · 19-06-12, 07:55 PM

almost 2 different cars on one graph!
i think you may notice the dip at 2.5 but nice power after 4k.

Drew

Jay-ZS+ · 19-06-12, 08:13 PM

Scale for the torque, graph is deceptive, makes the variance look alot greater than it actually is.

Slightly off topic, wasnt the WSR BTCC engine a 2L. Just wonder how the performance gains of the plenum are effected by the chance in capacity. Would be interesting to design a plenum optimised for the 2.5l and see how the two compare. Only say as its something I've been learning the science behind this year.

Fred68 · 19-06-12, 09:00 PM

Quote:

Originally Posted by Jadey-ZS+

Scale for the torque, graph is deceptive, makes the variance look alot greater than it actually is.

Slightly off topic, wasnt the WSR BTCC engine a 2L. Just wonder how the performance gains of the plenum are effected by the chance in capacity. Would be interesting to design a plenum optimised for the 2.5l and see how the two compare. Only say as its something I've been learning the science behind this year.

It seems to produce power for which i'm suprised tbh. I'm not a fan of the design and feel the trumpets are to long for proper air flow to the front cylinders. Looks like it does make power though.
If I was going to design a vis free plenum I'd go for a more tubular design with the throttle body at one end more like the Alfa V6!!
Well done on the result

Quadcam24 · 19-06-12, 10:02 PM

Quote:

Originally Posted by Drew

almost 2 different cars on one graph!
i think you may notice the dip at 2.5 but nice power after 4k.

Drew

agreed, the graph suggests you could drive ultra sensible and effortless but then if your in the mood just venture up the revs, its a bit jekyll and hyde.
What happens at 4k, its like vvc or vtec, what is the difference between sub 4k and after 4k that suddenly makes it go ?