JBS do provide this, if there RR is working. J.Gracie does not. That is why from the beginning of me getting my car. I had it RR at standard the day i got it (167.8)bhp (261)ftlbs. An hour later i had it mapped by Angel Tuning and went back to Henry the next saturday morning (206.1)bhp (321)ftlbs. I was annoyed with the map as it was hesitant when changing gear. And after much annoyance that Angel Tuning said it was a characteristic so my turbo doesn't blow up. I went and got the CC stage 2 dpf delete back to Henry's after everything was sorted with sensors. I run my car on bp ultimate diesel constantly. And figure was (240.6) bhp (432.0)ftlbs. That was 5 runs with the same results within a few bhp and ftlbs of each other. You however Andrew if you are going to JBS won't have to fanny around. I don't know how accurate their rolling road is , but remeber lol, i'm always told this by Henry. COmmercial RR are a good thing to measure the difference in bhp gained between 1 reading to another e.g 250 to
280= 30bhp gain. But all standard cars are tested to a power spec. And they will only be a few bhp from the book readings. For instance, all motors showing 10, 20 bhp up on standard power, are showing that because the RR is not accurate, same with new cars showing reading 10,20 bhp below. Unless the RR is about dead on book values when car is standard, don't take the tuned final reading as gospel, instead judge the gains you have got from the first reading to the 2nd. That's what henry always told me lol. A good example. When i had my
ibiza fr tdi remapped, by angel tuning, i had it rolling roaded before and after by Hillington Dastek rollers, they showed my car as standard at 138.3bhp and after my Angel tuning remap on the
ibiza it was 192.4. I thought that was amazing!!! But then i got told about Henry off of a few people in ayrshire and Paul from angel tuning said that he had told henry and henry welcomed me along, my
ibiza made 182.1bhp!! I was gutted lol!! But he asked me what Dastek had rolled me at standard and i told him, and he said that's the reason there results are to high. THe
ibiza should make no less, and no more than 127-130bhp. So when i thought about it he was spot on. And my gain was still substantial. It's just a wee heads up Andrew, for rollers to work properly they need to be set up to the spec of the car and a lot of the time commercial RR's are not!
