General > Old Event Details
Photo's From JKM Rolling Road day 18th April.
bacillus:
--- Quote from: Vtec Abuser on April 19, 2009, 07:15:24 pm ---Any other results from the day, RR etc..? Seems like JKM's rollers aren't in a very generous mood again.. :confused: 278bhp from a Stage 1 Revo car is a bit concerning.. Unless the car has faults or crap fuel etc.. :confused:
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x2
Phil Mcavity:
Stage 1 only will get 40bhp gain with no other mods. Stock cars came in bang on the money Ben, so Jkm's rollers are fairly accurate.
Depends Ben, If a set of rollers say your car produces X ammount thats more then other rollers then of course you gonna say the one that posted more is the one to believe in.Its a dyno lottery, which no one has the answer. Mine was down 10bhp for shoving redEx in the tank :embarrassed: (which retards the ignition timing) or lowering the octane Rating that the ECU recognises, but all other graphs were bang on the money as my last 3 runs.
--- Quote from: bacillus on April 19, 2009, 07:32:03 pm ---
--- Quote from: Vtec Abuser on April 19, 2009, 07:15:24 pm ---:confused: 278bhp from a Stage 1 Revo car is a bit concerning.. Unless the car has faults or crap fuel etc.. :confused:
--- End quote ---
x2
--- End quote ---
No her car is running faultless, and isnt done on power. Claire and her Husband ran some other tests prior to going on jkm's rollers which measures the cars estimated bhp.(Cant remember what it was but something to do with air mass flow?) It came out 2bhp out.
So to see 2 stock cars pull stock factory figures, and claires came out near on exactly as they predicted, was some sort of proof that they are fairly accurate and not "Optimistic" as some other roads can be.
Remember she has only a map and nothing else, no exhaust , just standard so 290 teritory would be a reasonable estimate if she had those fitted.
We're back to this same old argument which will never be solved in anyones opinion.
Its not all about chasing "Big numbers" as at the end of the day, thats not the be all and end all.
If stock cars were running alot below stock horsepower then i would agree that jkm's DD rollers could be questionable. But in 3 outings, not one has been uncomprehendable.
If Been on Regals Rollers and didnt take there 251bhp on a stock car as realistic that they gave me. I refuse to believe it.Although torque readings WERE identical at both Locations.
But these are of course my own oppinion so whether anyone doesnt agree well, ill come kick em and nick all their Bourbans from their biscuit Barrels, so be warned :wink:
Golfgirl:
I had a great day. Was nice to see some familiar faces again and also meet new ones.....everyone was really friendly :happy2:
It was an early start for us - we had to leave at 0630 to get there for 0900 and we didn't get home again until 2115 - went down to the seafront for lunch then stopped off at Newbury to visit a friend on the way home.
I'm pleased with my results, and like Phil said, I got more or less what I was expecting. The reason I travelled all the way to JKM was because I attended a previous rolling road day there in October when my car was standard and got 227bhp which was bang on the money. I wanted to see what difference the Revo Stage 1 had made so wanted to go on the same rollers. Seeing as my first run produced book figure, I am happy that yesterdays 278bhp is accurate. I run Tesco 99 fuel and apart from a misfire on one of my runs yesterday (which didn't affect the power) I have no faults.
Sunglasses Ron:
--- Quote from: Phil Mcavity on April 19, 2009, 09:18:01 pm ---Stage 1 only will get 40bhp gain with no other mods. Stock cars came in bang on the money Ben, so Jkm's rollers are accurate.
Depends Ben, If a set of rollers say your car produces x ammount thats more then other rollers then of course you gonna say the one that posted more is the one to believe in.Its a dyno lottery, which no one has the answer. Mine were down 10bhp for shoving redEx in the tank, but all other graphs were bang on the money as my last 3 runs.
--- Quote from: bacillus on April 19, 2009, 07:32:03 pm ---
--- Quote from: Vtec Abuser on April 19, 2009, 07:15:24 pm ---:confused: 278bhp from a Stage 1 Revo car is a bit concerning.. Unless the car has faults or crap fuel etc.. :confused:
--- End quote ---
x2
--- End quote ---
No her car is running faultless, and isnt done on power. Claire and her Husband ran some other tests prior to going on jkm's rollers which measures the cars estimated bhp. It came out 2bhp out.
So to see 2 stock cars pull stock factory figures, and claires came out exactly as they predicted, was some sort of proof that they are fairly accurate and not "Optimistic" as some other roads can be.
Remember she has only a map and nothing else, no exhaust , just standard so 290 teritory would be a reasonable estimate.
We're back to this same old argument which will never be solved in anyones opinion.
Its not all about chasing "Big numbers" as at the end of the day, thats not the be all and end all.
--- End quote ---
I agree mate that it's not all about chasing numbers. But it just seems that JKM seem to be the only RR in the country that I have seen that consistantly give low figures on mapped/tuned cars.. 290bhp terriotory is a reasonable estimate, yeah. But it's not 290bhp, it's 278bhp and if I had payed £500 for 300bhp, that is what I would want, not 22bhp less..
I for one don't really care whether my car RR's at 330bhp or 33bhp as it is what it is and still goes like stink (when I can drive it :grin:). But if I was to put mine on JKM's rollers and it pulled around 290bhp then I would seriously question it's accuracy as it goes a lot quicker than 290bhp and would defy the laws of physics if it actually was..
Just seems odd that when some of our chaps run there car at JKM compared to other RR's, they are always way down on what they read elsewhere (even if they are another set of DD rollers like Weston Performance for instance)..
Like you say though, it's going to be near on impossible to prove and you can't fault JKM's accuracy for standard car's figures, but it just seems that modded/mapped cars always seem to pull crap results compared to every other RR in the country.. :confused:
Once I am back on the road I will definately make the long trip down to JKM just to get a comparison.. Be interesting if anything else.. :happy2:
Sunglasses Ron:
--- Quote from: Golfgirl on April 19, 2009, 09:31:14 pm ---I had a great day. Was nice to see some familiar faces again and also meet new ones.....everyone was really friendly :happy2:
It was an early start for us - we had to leave at 0630 to get there for 0900 and we didn't get home again until 2115 - went down to the seafront for lunch then stopped off at Newbury to visit a friend on the way home.
I'm pleased with my results, and like Phil said, I got more or less what I was expecting. The reason I travelled all the way to JKM was because I attended a previous rolling road day there in October when my car was standard and got 227bhp which was bang on the money. I wanted to see what difference the Revo Stage 1 had made so wanted to go on the same rollers. Seeing as my first run produced book figure, I am happy that yesterdays 278bhp is accurate. I run Tesco 99 fuel and apart from a misfire on one of my runs yesterday (which didn't affect the power) I have no faults.
--- End quote ---
What torque figure did you get Golfgirl? Have you got your graph to hand to have a butchers at?
At the end of the day it's about the day out more than anything else and RR days are always a great laugh. Just JKM's results puzzle me sometimes though.. :grin:
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