no tricky it was 335bhp on pt map when first mapped then map altered itself for some reason the more i drived then ended up being 290 still on PTs map but after it somehow altered itself but now its Flea mapped and its 338bhp

oh, i get you luke, was there ever a AFR print out for the original PT map or was it ever checked while still producing that power?

not that i can find from around exact date of the car actually being setup on the pt map, the print out is from about month later i think but that afr reading is with a cracked manifold etc so i think its bit weird ther no print out from the day it was setup at PT because surely they would of done it on the rollers right?? thats why its bit confusing.

You also have to take into account the advance. if the car is running rich then you can dial in more advance and get the same power than if it ran more lean with less advance.

Coupes do not like running in the 12's or more lean than that. The RB26det is a different story.

Suba - you missed a 'T' off the end. RB26DETT

i had mine mapped at PT, and they dont give you a fuelling trace.

I have made a few calls and PT tend to not print off the fuel trace but monitor it while mapping, theres nothing wrong with this as most people dont really need to know

suba is correct, its a ballancing act between the afr,ignition advance,and boost, if you adjust one then it affects the rest

Well - I got one, but then my car was the first one they ever did.

out of curosity was yours lean in places?

Nope - but mine was not live mapped.

nor was lukes his was running unichip also. (i assume yours was unichip)

Yep - unichip. rolling road not so long ago and was running fine.

Si do you have your fueling trace from Surrey?

Yep:

http://s11.photobucket.com/albums/a198/suba11/?action=view&current=4.jpg

Cool, that looks ok on the high boost. What was the red line boost?

1.15 bar.

Do you have your PT fuel trace to compare, just interesting see how much it has changed. IRC, it was set to 11.3 to get more timing?

1.15bar, isn't that your track day setting? Lowering the boost doesn't always mean safer if the fueling hasn't been set for this. Luckily most of the driving on track is done at 5000rpm and above where it starts to richen up a bit on your car.

yep 1.15 bar is my track setting. The 1.15 bar redline applies when using 1.35 bar peak boost.

I'll see if I can dig out the PT fuelling graph.

I think Rob advance the ignition about 7 degrees mid range - so has likely run the car rich to compensate for this.

can't find the AFR from PT - I think they only showed it to me on screen rather than gave me a print out.

Not to worry You confused me about the redline bit, did you mean the red line on the graph or redline i.e. limiter? I assumed you meant the red afr trace was at 1.15bar.

Sorry Leight - I ment the Limiter.

Ah, I meant what boost were you running on that graph that produced the red line fuel trace?

Around 1.15 bar peak - not sure about the redline (limiter) boost - i guess around 1.0 bar or so.

Not wishing to rock the Roller boat... but Didn't you make 344bhp on PT's rollers yet at SRR that show's 305 horses. You can't have lost 39nags Si.

I have not lost any power - the car feels the same. as I have said before many times you can expect power runs to vary within 30 bhp or so, you never get an exact reading, so I'm not fussed, and certainly was not about to tear my hair out looking for boost leaks that were not there. All the cars that ran on that day seemed to be down compared to runs elsewhere, and Surrey RR always seem to have conservative figures IMO.

Yes Highwayman was down 20bhp from PTs rollers too on that day. Was yours about right Ken, irc Nobby was a little low too until he changed chip.

Did you know the fueling was lean at lower boost Si? I would be more inlcined to run it at the higher boost on the track where the fueling is better.

At least it proves that PT can map a car correctly, also Suba have you got the WBHP figures from both runs, i just want to see how far out they are compared to each other

As for 30BHP difference at the fly, thats 10% thats tollerable i think and seems the norm

As im now into tuned cars in alot more detail and know a fair bit more than when started out on this forum i would never EVER leave anywhere that my car had just been mapped without getting a AFR print out as thats the mpst important thing to everyone with turbo cars that its fueling rite.

So your average joe bloggs who aint got a clue might not want to see or know but i certainly would. Couldnt see you tricky walking out of somewhere your car had been setup and not want to know about the fueling of it.

Yeah but i noticed powerstation were only monitoring boost and fuelling if requested. should be done by default i would have thought. Could potentially blow someones car up?