BHP output

[Donny_Dog]

The new car came with a prinout, like so:

Hmmm... pretty powerful it would seem.
It does 'go' a lot better than the 172 running an arcadian map...

The previous owner states that JMS were impressed with the car, saying its one of the most powerful they've seen - if this graph is to be believed, then fair enough. BUT the graph doesn't mean a great deal to me.

Is this the same as Paul @ RStuning's rolling road?
Did JMS have a rolling road, or was this done elsewhere?
Do the curves look right? (sound like our lass)
I'm guessing this is a 'at the wheel' recording?

Maybe I should google Alan Jeffrey and see where he works.... unless someone on here can vouch he works/worked for JMS.

Decat, Induction kit and overrun map helped produce the figures by all accounts.

 

[mr.pink87]

The scaling of the graph isn't good. 182bhp is the corrected flywheel value. Dyno dynamics rollers are meant to be accurate on here but that's also down to the operator. If it's a strong 172 with a good remap, the power stated might be correct.

 

[dmallett]

If you doubt it, run it on a RR you know and trust.

If the car drives well and your happy with it I wouldnt worry about that graph

 

[Will.]

You don't use a RR to find out the cars power. You will never find the correct figure. Instead, find a RR that you like the service from, and use it before you modify. Then once you have done some mods, go back to the same RR and get it done again. Then you can see what improvement your car has made. Keep doing this untill you stop modifying.

 

[Donny_Dog]

If you doubt it, run it on a RR you know and trust.

If the car drives well and your happy with it I wouldnt worry about that graph

Worry? - you must be joking. I am just looking through the paperwork - the graph didn't look like others I've seen on here, hence the questions.

You don't use a RR to find out the cars power. You will never find the correct figure. Instead, find a RR that you like the service from, and use it before you modify. Then once you have done some mods, go back to the same RR and get it done again. Then you can see what improvement your car has made. Keep doing this untill you stop modifying.

No mate, you're missing the point. I don't care about the graphs/power etc. I just don't know a great deal about rolling roads! and wondering where this bit of paper came from.

I know Paul's is stated as one of the most reliable, but no idea what brand it is. Or if JMS have/had one and who did this particular print out.
I could just create one in paint, this one looks like it could have been - as it doesn't correlate with others I have seen.

 

[Donny_Dog]

The scaling of the graph isn't good. 182bhp is the corrected flywheel value. Dyno dynamics rollers are meant to be accurate on here but that's also down to the operator. If it's a strong 172 with a good remap, the power stated might be correct.

Its a 182 bud.

dyno dynamics is the same as RS tuning's?

 

[Laine_16v]

Alan Jefferies rollers are pretty good. I went down there and ran my ITB'd F4R'd mk1 after i nuked the oil on track and it made 175bhp, a renault 5 with a 172 engine made exactly 172bhp. They are on the money IMO.

 

[Jamesstone]

It was only myself & Tom at JMS, Never heard of Alan Jeffery RR so I don't know where that comment came from! We have only ever used Surrey Rolling road, Torque of the devil & RS tuning leeds

Ps, Its far from the most powerful we've seen! Previous owner pulled a good sales pitch there it seems lol

 

[Cub.]

Its a 182 bud.

dyno dynamics is the same as RS tuning's?

In answer to your questions mate;

Dyno Dynamics is a make of roller equipment. Alan Jefferies owns a Dyno Dynamics roller. As does Paul from RS Tuning. And others.
The power output looks good, as the others have said and yourself, ignore the graph and if it feels strong and your happy with it, that is what counts.
JMS didn't have a rolling road. They used other peoples. But, they did alot of work on clios, so if they commented yours was a strong one, its better than say me saying it is a strong one. lol.
Will. comment is right in the sense that the variations in rollers do occur, but if you do get mods/work done, take it on the same rollers. That will at least give you a better feel for the gains, as opposed to the end figure. It is all down to roller / operator ability though....

Oli

PS - I see James has posted above. He was one half of JMS, before becoming Stone automotive.

 

[Donny_Dog]

It was only myself & Tom at JMS, Never heard of Alan Jeffery RR so I don't know where that comment came from! We have only ever used Surrey Rolling road, Torque of the devil & RS tuning leeds

Ps, Its far from the most powerful we've seen! Previous owner pulled a good sales pitch there it seems lol

Thanks James, the car was mapped by you so I thought you did the rr too, guess not.

Previous owner was just that 'a previous owner' and not the one from whom I bought the car.

 

[Donny_Dog]

In answer to your questions mate;

Dyno Dynamics is a make of roller equipment. Alan Jefferies owns a Dyno Dynamics roller. As does Paul from RS Tuning. And others.
The power output looks good, as the others have said and yourself, ignore the graph and if it feels strong and your happy with it, that is what counts.
JMS didn't have a rolling road. They used other peoples. But, they did alot of work on clios, so if they commented yours was a strong one, its better than say me saying it is a strong one. lol.
Will. comment is right in the sense that the variations in rollers do occur, but if you do get mods/work done, take it on the same rollers. That will at least give you a better feel for the gains, as opposed to the end figure. It is all down to roller / operator ability though....

Oli

PS - I see James has posted above. He was one half of JMS, before becoming Stone automotive.

Thanks for the info mate, very helpful.

 

[marinemackay2003]

allan jefferys is in plymouth btw

http://www.enginetuner.co.uk/home.htm

 

[Laine_16v]

It was only myself & Tom at JMS, Never heard of Alan Jeffery RR so I don't know where that comment came from! We have only ever used Surrey Rolling road, Torque of the devil & RS tuning leeds

Ps, Its far from the most powerful we've seen! Previous owner pulled a good sales pitch there it seems lol

Whooops i presumed it was Alan Jefferies rolling road who also has a DOS based Dyno Dynamics rolling road just like Surrey lol. How strange!

 

[Chip-mk1]

Looks like a fantastic example from that graph, one of the smoothest torque curves on standard inlet ive ever seen.

Same rollers as Rs Tuning / Surrey / torque of the devil etc

Doesnt look anything massively untoward with the figures, like an IT of 30 and an AT of 5 or anything like that, so no reason to think it wouldnt be similar results if ran on the other rollers of the same type.

Bet that goes really well!

 

[Donny_Dog]

Looks like a fantastic example from that graph, one of the smoothest torque curves on standard inlet ive ever seen.

Same rollers as Rs Tuning / Surrey / torque of the devil etc

Doesnt look anything massively untoward with the figures, like an IT of 30 and an AT of 5 or anything like that, so no reason to think it wouldnt be similar results if ran on the other rollers of the same type.

Bet that goes really well!

It does mate, very suprised to be fair. As I mentioned, I have a 172 which has been fettled (RS tuning remap, matched inlets, ph1 airbox etc) and the 182 would disappear. Quite strange really.

It would make sense (based on the info above) that Alan Jeffrey though the car was str0ng and not JMS. Irrespective, I'm not into chasing numbers, but I do wonder what another inlet would produce.

 

[Chip-mk1]

It does mate, very suprised to be fair. As I mentioned, I have a 172 which has been fettled (RS tuning remap, matched inlets, ph1 airbox etc) and the 182 would disappear. Quite strange really.

It would make sense (based on the info above) that Alan Jeffrey though the car was str0ng and not JMS. Irrespective, I'm not into chasing numbers, but I do wonder what another inlet would produce.

Should think you would be mid 190s with an RS2 and probably edging towards 200 on ITBs based on how well its all working to begin with mate.

But that said, if it drives that well, might be worth leaving alone

 

[Donny_Dog]

Should think you would be mid 190s with an RS2 and probably edging towards 200 on ITBs based on how well its all working to begin with mate.

But that said, if it drives that well, might be worth leaving alone

You're right. It shall be left as it is :approve: