Terrible dyno result

C

Conor197

Hi everyone, new to the forum and badly need advice. Ive owned my 2008 197 for over a year and decided to get it remapped so it was put dyno'd and it only made 155hp :worried:
naturally I didn't proceed with the remap as I want to find out what's wrong. The dyno type was the one where they remove the front wheels and bolt machines to the hubs, I don't know if different machine gives different power readings, I'm not very informed when it comes to this stuff.
anyway what could cause such a massive loss of power??????? Yesterday was very depressing for me as the car is my pride and joy but if the problem is something expensive that I can't afford to fix then it will have to go but I don't want that to happen.
first of all I'm going to change the spark plugs and see if the car feels any different. It drives fine at the minute and I didn't think it felt down on power, and at 5k rpm you can feel it get faster again but the dyno graph showed that the car died flat at 5k rpm, very confusing. The guy who done the test took it for a drive and said its the weakest 197 he has driven. So I got in touch with a guy I know with a 197 and he let me drive his, they felt almost identical, then I let him drive mine and he said mine felt more urgent than his and that he preferred how mine felt and he also said there was no way the car only had 155hp.
my car has 46k on the clock, belts were changed 2 years ago before I bought it (could wrongly fitted belts cause a loss of power?) and the car has a scorpion cat back system and a ktec induction kit.
i really hope you guys can help me because the situation is quite saddening to me.
thanks
 
Even 155 at the crank would be low. Timing is probably out. Belts can be fitted wrong and can cause huge losses in power.
 
wrong results?? I would have it done somewhere else too just to double check..
thats my advice
 
well then i would be one very unhappy bunny..
maybe if you had a friend with a 197 that you could compare it against..how does it feel when you drive it on the road?
 
As I said in the original post I drove a friends 197 later that day and the cars feel the same, they couldn't both be drastically underpowered. The car feels fine to drive, no problems. The dyno graph was showing the car dying at 5500rpm but that's just not the case on the road, you can feel the vvt kick in
 
strange..if it feels as same your friends then i would not believe the results then..try another dyno rather then spending money for repairs..
hope you get it sorted mate..
 
Imo it would be worth going to a well regarded specialist to get the timing checked or going to a different dyno as has been said above
 
I'd suggest the same as above also, get a second opinion from a different dyno place, or a decent RS specialist. Whereabouts are you based?

Figures and printouts are all well and good, however if the car feels good to you to drive then I would try not let it worry you so much. It seems very odd that you feel the kick at 5k, yet the dyno showed a drop off in power... If your friend says he feels no difference between yours and his car, then that would be a bit of reassurance to me.
 
If it ran 170 on a 182 thats about right so suggests thrre nothing wrong with the dyno.. Very strange.
 
I forgot to mention that the ecu was read for error codes and there was nothing showing. The car will be going to somewhere else to be tested just in case and the guy it's going to is a lot more knowledgeable about cars so hopefully we can pinpoint something. So other than a change of spark plugs and checking the belts and timing is there anything else that can cause an engine to drop power without any symptoms?
 
I don't know what that means [MENTION=29]foxspeed[/MENTION] lol. All I can tell you is that on the graph the line climbed at a steady pace until 5.5k but then just a flat line for the rest of the Rev range.

as for fuel up to this point the car has just been run on normal supermarket stuff, I know it's not ideal but it will be run on bp ultimate for the next few weeks before the next test, I think it's my only decent fuel option in Northern Ireland.

checked the induction kit and the plastic intake pipe wasn't clicked into place properly but I doubt that would make much of a difference. Anyway it was all retightened and clipped in etc. I wonder why the plastic intake pipe has holes in it, surely the idea is to get as much air into the engine as possible?
 
You should have still proceeded to get it mapped, they would be able to tell you where the timing is being pulled and 'possibly' see where the fault is coming from!
 
Put the graph up on here so we can see what's going on. The figure of 155, was that at the hub or at the flywheel? If hub then it's about right.
 
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