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Author: Subject: my rolling road results
ned

posted on 19/5/06 at 10:10 PM Reply With Quote
my rolling road results

well its was a long day (and night - as in an all nighter with no sleep boy am i knackered)

big thanks must go to Shortie and James for their late night efforts in helping me get the car in a suitable state to make it to the rolling road in the first place!

quite pleased with the results, would have liked more but wouldnt we all?!

pretty much inline with what i was expecting aswell which is nice. I think there could be a little bit more had we not wasted time solving some problems which would have meant more time working on the map. That and the fact the engine was mapped to soft cut 7750rpm and hard cut 8000rpm but the power runs were only done to 7400 and the engine was still on cam when they lifted off.

anyways, here's the sheet:

graph
graph


ps the reason for the wiggly bit between 5500-6000rpm is a vibration/instability with the car on the rolers affecting the reading - suspect a wheel/tyre needs balancing.

[Edited on 19/5/06 by ned]





beware, I've got yellow skin

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Surrey Dave

posted on 19/5/06 at 10:21 PM Reply With Quote
That should be enough to scare you!!
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Fozzie

posted on 19/5/06 at 11:25 PM Reply With Quote
quote:
Originally posted by Surrey Dave
That should be enough to scare you!!


Oh yes!
Fozzie

(well done! )





'Racing is Life!...anything before or after is just waiting'....Steve McQueen


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shortie

posted on 20/5/06 at 05:07 AM Reply With Quote
Well done mate, was a long hard week but well worth it in the end!

Can't wait for a ride at Brands on Weds

Rich.

P.S. Pizza was lovely

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doughie

posted on 20/5/06 at 06:32 AM Reply With Quote
cool
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iank

posted on 20/5/06 at 08:53 AM Reply With Quote
quote:
Originally posted by andylancaster3000
don't tell me that is an at the wheels figure!!!

Andy


Green line seems to be labeled as wheel BHP which peaks at 167(ish). Should be "adequate" for the road

Torque curve indicates it should be easy to use the power as well.

Well done ned.

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donut

posted on 20/5/06 at 09:10 AM Reply With Quote
Blimey!! I hope you are well insured!!

I don't think i'll be asking you for a race!!





Andy

When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
http://www.flickr.com/photos/andywest1/

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MikeR

posted on 20/5/06 at 09:16 AM Reply With Quote
Lets put it this way, sure you're nice bloke, positive you're a safe driver ....

but i'm surely positive i'm refusing to get in that car with you

[wolf whistle] nice figures ;o)

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ned

posted on 20/5/06 at 09:46 AM Reply With Quote
quote:
Originally posted by MikeR
but i'm surely positive i'm refusing to get in that car with you


so begs the question will you get into Nat's?!!





beware, I've got yellow skin

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andylancaster3000

posted on 20/5/06 at 10:20 AM Reply With Quote
Nice one ned, seems your finally close to the finish! Brands is so tempting now...

Andy

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NS Dev

posted on 20/5/06 at 10:39 AM Reply With Quote
Of course he won't!!!!!

Nice one, it's a great feeling when the engine's screaming on the rollers isn't it (that little bit of nervousness in case it all goes bang!!!)

Interesting on the power plots.

Just looking back at my old plot from the std XE on 48mm throttle bodies.

That made 176hp @ wheels, (don't worry, the good news is to follow!!!) but had nothing like as much beef to the curve as yours.

I think this shows that the std head flows extremely well, and that the std cams are holding it back in the midrange, as well as the top end.

Well done Ned, look forward to meeting up when both our cars are finished!!!!





Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion retro car restoration and tuning

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MikeR

posted on 20/5/06 at 11:14 AM Reply With Quote
quote:
Originally posted by NS Dev
Of course he won't!!!!!



too blooming right! Nat already knows that as well!!!!!

Heck, i go to confession before i get in a road car with him (i'm a really nervous passenger) and i'm not even catholic!

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chriscook

posted on 20/5/06 at 11:23 AM Reply With Quote
Had mine on the rollers yesterday at Northampton Motorsport - Std engine on Dellorto 45s made 179bhp (at 6200rpm) and 156lbft (at 4850rpm).

Hadn't used revs above about 5500 until the drive home - had a big grin on the way home but i'm not sure the gearbox survived the ordeal!

Must now get into the garage to sort out the bodywork for the paint shop.

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MikeR

posted on 20/5/06 at 11:42 AM Reply With Quote
must get round to yours to sort out the cash i owe you as well !!!!!!!

Well done with the numbers - another car i'll refuse to go in

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NS Dev

posted on 20/5/06 at 11:46 AM Reply With Quote
Come on Mike, you've got to go for a run out in at least one VX engined machine!!!!

What about on the track then?

(though with me you're safer on the road, I tend to get carried away on the track!!)





Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion retro car restoration and tuning

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MikeR

posted on 20/5/06 at 12:37 PM Reply With Quote
Yeah but on the track "we've" got a large run off area, gravel traps and no one (in theory) coming in the other direction!

On track i'd scream and smile a lot without needing new trousers (i hope).

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NS Dev

posted on 20/5/06 at 12:41 PM Reply With Quote
righty ho, we'll have to go for it then!! just hope my engine holds together without the dry sump!





Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion retro car restoration and tuning

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MikeR

posted on 20/5/06 at 12:53 PM Reply With Quote
ahem - and you NEED A TRACK!

not a road, not a farmers lane a TRACK, as in marshalled RACE TRACK !!!!!!!!!

Whoohoo, an excuse to wear my new helmet & for you to pull your finger out and finish the car!!!!!

(trying to decide where to put the front brake line bulk head mounts at the moment on mine)

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Deckman001

posted on 20/5/06 at 05:09 PM Reply With Quote
nice results there matey, was that after running the new engine in or before ?? more to come after you de restict the engine for running in then ??

Jason






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bob

posted on 20/5/06 at 06:19 PM Reply With Quote
Superb Ned

all that £ffort was deffinatly worth it then,you can give us the whole story tomorow at walton.

If the other builders wont get in the car with you they wont even stand near hicosts car then






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ned

posted on 20/5/06 at 06:26 PM Reply With Quote
Jason,

No running in really, engine was built and run a couple of times at home on the base map, then at the rolling road they spent the first couple of hours doing all the low rev running, cold start etc stuff then only at the end did they do the power runs to get the mapping for the high rpm stuff.

Ned.





beware, I've got yellow skin

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dnmalc

posted on 20/5/06 at 07:31 PM Reply With Quote
Congratulations ned we just need to wait for James now
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James

posted on 20/5/06 at 07:33 PM Reply With Quote
quote:
Originally posted by ned

big thanks must go to Shortie and James for their late night efforts in helping me get the car in a suitable state to make it to the rolling road in the first place!



No probs mate- gives me more excuses ammunition for not winning the race!

Cheers,
James





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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights." - Muhammad Ali

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garage19

posted on 20/5/06 at 10:33 PM Reply With Quote
Who mapped the engine? Looks like they did a good job on the fuelling from the AFR trace.






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ned

posted on 21/5/06 at 02:46 PM Reply With Quote
It was mapped by Steve Greenauld and Steve Pilscher at Track'n'road Powerformance.

Ned.





beware, I've got yellow skin

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