PPP - dyno results - slightly disappointed
13 April 2003, 09:11 AM
#1
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Hi,
went to PE yesterday with my STi7 PPP (new ecutek version) and got 289bhp & 286 torque.
Mutant_Matt linked in his Delta Dash and captured the output. Simon (i think) from Prodrive looked at the results and said there was nothing wrong and more than likely it was some dodgey fuel. I was running Esso Super 97.
Should I be disappointed with the results or just ignore them. The cars drives great anyway. It's just that when you pay £2k for 300/299, you expect to see 300/299 not 289/286.
Someone mentioned it could be a dirty maf sensor or something...
Any comments ?
went to PE yesterday with my STi7 PPP (new ecutek version) and got 289bhp & 286 torque.
Mutant_Matt linked in his Delta Dash and captured the output. Simon (i think) from Prodrive looked at the results and said there was nothing wrong and more than likely it was some dodgey fuel. I was running Esso Super 97.
Should I be disappointed with the results or just ignore them. The cars drives great anyway. It's just that when you pay £2k for 300/299, you expect to see 300/299 not 289/286.
Someone mentioned it could be a dirty maf sensor or something...
Any comments ?
13 April 2003, 10:41 AM
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Different rolling roads, weather conditions, fuel quality all add in variants, I wouldn't be too upset about those figures.
If it's really bugging you get it booked in somewhere else, try another fuel type and chuck in some octane booster.
I doubt the Maf is dirty on such a low mileage car, but worth asking the dealer to clean it anyway.
I know my PPP is working without worrying about doing a RR session, a few bhp in either direction doesn't really bother me.
If it's really bugging you get it booked in somewhere else, try another fuel type and chuck in some octane booster.
I doubt the Maf is dirty on such a low mileage car, but worth asking the dealer to clean it anyway.
I know my PPP is working without worrying about doing a RR session, a few bhp in either direction doesn't really bother me.
13 April 2003, 02:15 PM
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You probably get more power on the road than on a rolling road due to airflow.
Also if your car still has only a few k miles on it then its still going to be pretty tight (my MY00 was for around 8k then loosened up lovely
)
If it goes like stink on the road then thats what your after
adn not the results from a rolling road which will only really tell you if something is seriously wrong with the car (sounds pretty normal does yours )
Tony
Also if your car still has only a few k miles on it then its still going to be pretty tight (my MY00 was for around 8k then loosened up lovely
)If it goes like stink on the road then thats what your after
adn not the results from a rolling road which will only really tell you if something is seriously wrong with the car (sounds pretty normal does yours )Tony
13 April 2003, 06:36 PM
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Mark,
Just to re-itterate, the Advance Multiplier was not running at it's maximum so whilst the car was happy with the level it is running at the moment, the overall performance level is down from what it *can* be, due to a problem in the past (which Simon said was most likely to be due to some dodgy fuel or some previous det). It *should* get better all by itself, assuming it doesn't encounter further gremlins.
Try running Optimax and see if it feels any stronger (though feeling thost extra 10 horses may be a little too difficult for the butt dyno)
If it's any consolation, Lemmie's STi was slightly down on the expected figures today (though his advance multiplier was running at maximum) so perhaps it being warmer may have had a hand in it?
Ta,
Matt
[Edited by mutant_matt - 4/13/2003 6:38:33 PM]
Just to re-itterate, the Advance Multiplier was not running at it's maximum so whilst the car was happy with the level it is running at the moment, the overall performance level is down from what it *can* be, due to a problem in the past (which Simon said was most likely to be due to some dodgy fuel or some previous det). It *should* get better all by itself, assuming it doesn't encounter further gremlins.
Try running Optimax and see if it feels any stronger (though feeling thost extra 10 horses may be a little too difficult for the butt dyno
)If it's any consolation, Lemmie's STi was slightly down on the expected figures today (though his advance multiplier was running at maximum) so perhaps it being warmer may have had a hand in it?
Ta,
Matt
[Edited by mutant_matt - 4/13/2003 6:38:33 PM]
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13 April 2003, 10:33 PM
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As Matt says above my STi7 only gave 309 hp and 294 lbft yesterday running on Optimax. In February it gave 319 hp and 292 hp with a flatter torque curve directly after a remap on Esso SUL. Over the next 200 miles the performance certainly felt like it improved alot so I was expecting at least 325 hp on Saturday and was rather disappointed with only 309 hp. I put the "low" power down to the warmer weather and maybe Optimax.
The difference between Saturday's run and previously was 10 hp which is about the same fall in power that your car showed.
Alan
The difference between Saturday's run and previously was 10 hp which is about the same fall in power that your car showed.
Alan
14 April 2003, 08:29 AM
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LOL - blind leading the blind...
Basically, it's an overall "Happiness Ratio" (tm Dave Power). If the car is happy with conditions (fuel, lack of det etc.) it will increase the AM. If there have been problems then it reduces the AM which has an overall effect on the other individual settings - e.g. it will run less timing (which I think what was happening in your case). It is a course method of controlling how close to the edge the ECU is happy to run. If you really want to know how it works, you'll need to speak to either Merv, Stephen Done, Pat or Bob.
Matt
Basically, it's an overall "Happiness Ratio" (tm Dave Power
). If the car is happy with conditions (fuel, lack of det etc.) it will increase the AM. If there have been problems then it reduces the AM which has an overall effect on the other individual settings - e.g. it will run less timing (which I think what was happening in your case). It is a course method of controlling how close to the edge the ECU is happy to run. If you really want to know how it works, you'll need to speak to either Merv, Stephen Done, Pat or Bob.Matt
14 April 2003, 08:33 AM
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Stephen,
Usually, the same car on PE's rollers with no changes will run within a few bhp from multiple runs, months apart. PE's rollers in my experience are usually very consistent.....
Matt
LOL rolling road results are totally bollicks , esp on stand alone results . only use them as a slight comp only
Matt
14 April 2003, 12:47 PM
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Mike,
Of course not, after all - he works for Prodrive doesn't he and I don't know if you've noticed, but apparently, that means he can't know anything about "proper" tuning....
Matt
Of course not, after all - he works for Prodrive doesn't he and I don't know if you've noticed, but apparently, that means he can't know anything about "proper" tuning....
Matt
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