what you think of these results

beeza_warrior

Guest
phill i shall rung you once i been on rollers im goin up at 1 :)
 
May 2, 2006
2,758
0
i wouldnt get too caught up on figures, an RR is only a "indication" of your car running healthy or not, also a tool to willy wave with numbers to your mates...

as long as it drives well on the road and your happy with it then good stuff :thumbup:
 

motty_90

Active Member
Jul 28, 2009
91
0
Ashby De La Zouch
Mine ran a 216 bhp @ fly with 260lbs torque on a k03 with a revo stage 2 that was at northampton motorsport, had the boost turned up slightly since due to it keep blowing hoses off on dyno. so not sure what its running now.
 

pj1985

1.8T Power
Oct 31, 2006
2,218
0
Hampshire/Surrey
1 bar of boost will hold alot longer than having a spike and will run just as much as one hitting high and then dropping off early

then what is?? its fact that it is in front of you. and you have been told that 3 cars on that day got the results expected yet you still argue it!

get a grip and stop crying about it. its real and yes you are awake!

why cant you just be happy someone got those results instead of just arguing it! :censored:


:ban:

Actually Im have a grip and Im not crying about it although it seems you really do seem to be so how about you tone it down slightly as we're having a discussion not throwing our toys out the pram. There are so many variables with a RR that it is more of an indication as we ALL know but thats not to say they are wrong.

I know that some k03 seem to make good power that is 'real', Alex had a k03 that made 260bhp but it was running silly high boost iirc. Im sorry I cant see how 14.5psi will make that high power unless there is another factor there like high compression etc. Where was the boost reading from and what spec is the engine?
 
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RPM-tuning

Guest
Rolling road = "how much power would you like sir"

Personally a rolling road is only good for setting up a car, which can also be done on the road in real conditions...simulated air cooling of a rolling road?

It's how the car performs on the road not what your piece of paper states (although great for the pub talk)

Obviously these are words from someone who doesn't have a rolling road :) ...but its true
 
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Dec 3, 2007
2,475
0
cardiff
Actually Im have a grip and Im not crying about it although it seems you really do seem to be so how about you tone it down slightly as we're having a discussion not throwing our toys out the pram. There are so many variables with a RR that it is more of an indication as we ALL know but thats not to say they are wrong.

I know that some k03 seem to make good power that is 'real', Alex had a k03 that made 260bhp but it was running silly high boost iirc. Im sorry I cant see how 14.5psi will make that high power unless there is another factor there like high compression etc. Where was the boost reading from and what spec is the engine?


look all im saying is why are you all arguing the fact he cant have these results when he actually does have these results.

not as if he has come on here with no evidence and started bragging about it. he has come on here with proof of what he got. not a silly figure its actually quite possible.

and with a new engine and 14.5 psi it is possible. his boost is continuous and obviosly been mapped well. strong solid 14.5 over a weak 18 psi.

my car is much stronger with lower boost than higher boost. ok i dont have graphs to prove it but logging and feel are totally different.

you have been on here long enough to see what happens and what can happen. so all im saying is why are you disagreeing with what he got?
 
Dec 3, 2007
2,475
0
cardiff
Rolling road = "how much power would you like sir"

Personally a rolling road is only good for setting up a car, which can also be done on the road in real conditions...simulated air cooling of a rolling road?

It's how the car performs on the road not what your piece of paper states (although great for the pub talk)

Obviously these are words from someone who doesn't have a rolling road :) ...but its true

i agree with the pub ammo! but rolling roads have been used for years. open road mapping is obviously better by miles as it simulate real conditions (as stated)

but when 3 cars who have all got near enough what is expected then not alot can be wrong with the rr!

and we all know that a piece of paper is partial evidence so it does have some bearing on the situation.

any way. its all abotu the driver and dai!!!! "you cant drive" lol
 

pj1985

1.8T Power
Oct 31, 2006
2,218
0
Hampshire/Surrey
look all im saying is why are you all arguing the fact he cant have these results when he actually does have these results.

not as if he has come on here with no evidence and started bragging about it. he has come on here with proof of what he got. not a silly figure its actually quite possible.

and with a new engine and 14.5 psi it is possible. his boost is continuous and obviosly been mapped well. strong solid 14.5 over a weak 18 psi.

my car is much stronger with lower boost than higher boost. ok i dont have graphs to prove it but logging and feel are totally different.

you have been on here long enough to see what happens and what can happen. so all im saying is why are you disagreeing with what he got?

Im not disputing 222bhp. Im saying I dont think its possible at 1 bar unless there is something else thrown into the mix. Can a k03 even hold 14.5psi past about 4.5/5krpm anyway?

What car do you have that is much stronger with low boost than high boost? Some are designed to run high compretion so they make good power with low boost.
 
Dec 3, 2007
2,475
0
cardiff
mine runs on a series of restrictor pills. i like many other am running on an ihi. my 3rd one now. testing out my new vf43 when i get home. i agree with the turbo running out of puff but what you have to remember is if your turbo runs out of puff at say 5k with 18.5 psi the turn it down to 14psi and it may continue for longer. its how the boost is delivered and how your acurator is operated at different levels of boost. lowed psi is taken less stress off the turbo and is more sold than higher boost which is weak
 
Dec 3, 2007
2,475
0
cardiff
oh and when you buy a new car it is almost factory results. but over the years these results fade away and become less. he is runing a new engine and its probably been honed for the new pistons and new headgasket and this may have altered compression ever so slightly. this in turn will have an affect!

i know you know this but im point out this fact so you dont forget it
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
dyno-lottery.jpg


Different dyno's do read different figures often
Same dyno's can read different figures on different days

road data logging is not live mapping, its logging.
RR is safer, strapped down doing 100mph safely. (no traffic)

depending on applied loads and dyno control, lower powered cars (like more std level ones) can and do often read standard power and the proclamation of it must be accurate is made. then when higher powered, higher boost cars are run, and make less than expected results. RR to blame? Car to blame? map to blame? at this point people want to "blame" something.. throw a dice and place your bets folks

the reason for many dyno's reading higher powered cars lower than relatively standard ones, especially on the load based ecu's like Me7's, is the runs do not simulate acceleration run rates to that of on the road. Often is an rpm per second ramp rate fixed. rough guide is know what your on the road acceleration time is in the chosen same test gear, and compare that to the applied brake on the dyno (if the dyno has eddy brake and is'nt just fixed mass inertia dyno) - it will give you a 'feel' for relative comparison. Also logging during the runs is well advised, so you can see and compare dyno to road..

relative comparisons on the day on similarly spec'd cars is about as best as you will get.

got to 5 different dyno's & you will probably get 5 different results, in both terms of maximums recorded as well as how they are delivered in terms of the dyno plots ( shape of power and torque delivery etc etc)

RR is a good tool.. I cant wait to get my own.
 
Nov 2, 2004
9,335
0
South Wales
The facts....

4 ibizas run on same dyno all within an hour.

One ibiza, mapped (unknown), open cone dynatwist and cat back and n249 k03. - 205 and 225lbs/ft.

Second ibiza - fmic, decat and turbo back, unknown map, tip, filter k03 (boost gauge reading 1bar - no logs) - 222bhp 225lbs/ft

Third ibiza - full revo stage 2 (dp and high flow cat, fmic etc...) and k03s - 229.7bhp and 256.5ftlb

Fourth ibiza - mine - As above with decat and boost controller and a few other things and heavily logged and tweeked, +3.75° timing etc.. - 242bhp and 294lbs/ft. after 3 runs, all 236bhp+ depending on timing adance.


They look like pretty accurate and comparable results to me. Remember it was a cool damp day as well, ambients were nice. :)

Interestingly, Ive also had the same figure, 228bhp (exactly) and ~270lbs/ft on this dyno (Dastek) and Powerstations Maha dyno.
 

RPM-tuning

Guest
Totally agree with a Dyno being a great tool. Also very expensive, personally I like products Dyno Dynamics offer.
 
May 2, 2006
2,758
0
As said, RR is a very good way of knowing if you have a healthy running motor or not
By the sounds of all the above figures, you all own very healthy motors fair play, i take my had off to you guys.
Id love to see anyone get anywhere near these figures on awesomes rollers though..... what the half equipped k03 stage1 guys were getting on here (1st ibiza as a example) is similar to what most stage2 fully equipped peeps get on awesomes - chalk and cheese i know...... but these rollers do sound a bit power happy like jabba's old rollers, where fully equipped k03s guys (like phils) would see 250+ and sometimes more...

all good for pub banter, and good to know that your car is healthy (peace of mind) but i wouldnt set in stone these numbers, there just good indications... dont be suprised if you get lower/higher numbers elswhere

i remember when i was at a RR and a guy was there who had a massive boost spike, creating big numbers in both torque and bhp..... but his car soon got left at the back of the pack on the way home.... moral of the storey, dont get too hung up.... its on the road where it counts, and if your happy with it on the road then good times

just my 2p....

gotta love dyno threads :)
 

beeza_warrior

Guest
just got back from goot boost - car running mega lean :( made 330.9bhp at 1.3 bar

so im goin to get a new maf and try that then back there up the boost to 1.6 and should get 370bhp

craig is a very nice guy i was there way over 2 hours as we were trying to sort the maf out by cleaning it then re-running it but did not make much diff, unda hard load the fuel/air was 14.1 very lean so shall be goin back down this weekend with new maf and upping the boost to she what she does :)
 

daves ibiza

Guest
still nice figures mate ;)

thank you to all . replying bout results new turbo this week so be geting results up soon as ive been back to rr.