General Rolling Road - Place your bets

Italian Coke Can · Nov 21, 2008

The Cinq sporting is going to Red Dot in the morning for a run on the dyno.

Specification:

1108
SPI
40mm Tricker
McKricth (sp?) Chip
P75 cam
Novitec Airbox & Filter
KNV85 (?)
Supersprint Backbox

Fully serviced last month and running 85,000. Running well and tops out 5th on low profile tyres.

So, place your bets as to what i will achieve at the wheels / crank.

(No prizes for the correct answer)

Brooky · Nov 21, 2008

Eklipze3k · Nov 21, 2008

Brooky said:
6.5

Corrected for ya Brooky

AppleSei · Nov 21, 2008

68.2

dont you mean KV85 rather than KNV85 i am gathering these are the magnecor leads?

dave · Nov 21, 2008

Italian Coke Can · Nov 21, 2008

AppleSei said:
68.2

dont you mean KV85 rather than KNV85 i am gathering these are the magnecor leads?

They're red. . . . . Thought they might be worth 0.5bhp.

IF this session costs me more in £'s than it makes in horses i'll be mighty cheesed off!

tenpastnine · Nov 21, 2008

Donna · Nov 21, 2008

Good luck, id say 66 hp

p.s sell me the novitec box pleeeaaassseeee :bang:

AppleSei · Nov 21, 2008

Italian Coke Can said:
IF this session costs me more in £'s than it makes in horses i'll be mighty cheesed off!

how much is session costing?

Italian Coke Can · Nov 21, 2008

£30.00

I'm going to use it to help decide if i want a bigger car. In my head it's making 65-70 at the crank. To get something that feels *alot* faster i'd therefore need 125bhp. However, if it's only making 55bhp i'd be happy moving up to a 1.4 / 100 bhp.

fingers99 · Nov 21, 2008

54.4

The answer is to put a 1.4 16v in it. What tyres does it rev out in 5th wearing?

alainax · Nov 21, 2008

Brooky · Nov 21, 2008

my cinq made 55 at the wheels, and it had a few more mods than yours.

Dont know how true the rollers were tho

mrcinquecento · Nov 21, 2008

65.7 at the crank would be my guess, i'd recon about 59 at the wheels

J333EVO · Nov 21, 2008

If you get a print out from any rolling road, make sure it has correct power at wheels and it states which gear the run was done in, as its very easy to make the figures appear better than they are, one by, doing run in lower gear than top, and ajusting tyre pressures,

BUT for a FWD car the flywheel power should never be more than figure plus 10 divided by 0.9, or if easier use this calculator.

http://www.dyno-power-run.com/dynocalc.shtml

Read this very interesting article by a highly respected person about coast down figures and r/r operations. As on same car in 5th gear i was 88bhp@wheels, 92bhp@wheels in 4th and 95bhp@wheels in 3rd so shows how easy it is to manipulate figures.

http://www.pumaracing.co.uk/coastdwn.htm

Plus remember all car manufactures are allowed to quote a headline figure and all engines produced only have to be within10%, OK on a small engine like the Cento its not a very big margin, but makes huge differance on big power cars. BMW's especially M3's are notorious for being a bit shy of there printed figures.

So given all that I estimate 50bhp at wheels 66bhp flywheel.

Standard should be about 39bhp@wheels 54bhp at flywheel.

GoBe · Nov 21, 2008

45 to 50whp, maybe a little more. I base this on my Sei producing 51.3whp from a P75 cam, home made induction kit based around a CDA DIA & remap on an MPI Seicento just after a nice service.

Italian Coke Can · Nov 22, 2008

53.45 Whp @5550rpm
70.74 Calculated flywheel Hp

Wheel torque 58.60 ft-lb @~3750rpm

Running an AFR of 10.34 above 3,000prm so we tweaked the FPR down a few turns and it runs smoother now.

RedDot reckoned an extra 5hp from sorting out the AFR on the rollers.

Worth the £30 though.

fingers99 · Nov 22, 2008

I won!

I claim my prize!

So, what you gonna do mit the car?

One way to a more fun drive is just to keep what you have an pop a 1242 block in. Won't liberate lots of power, but the extra torque really tells in something as light as a Cinq. It's the Sporting that the factory should have made.

Italian Coke Can · Nov 22, 2008

First thing on the list is to fit my mate's wideband lambda to see how it's going.

Only other things left to bolt on are;

4 branch
De-Cat
Headwork
1242

Not sure really, but i'd like to how far it goes on a tank of fuel now and see how sweet we can get it with the AFR tuning.

dave · Nov 22, 2008

you went before i got here

could have had a run in every gear if you wanted

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