Went Dynoing today........ :(

Started by Well-sy, September 12, 2009, 06:45:18 PM

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BlitzBoy

It probabley is when the aux ports come online when the power line starts to go up, but yours is a fairly typical hp figure. As the RX8 ECU along with the ABS gets confused as it detects the rear wheels are moving and the fronts are not it may do something to the fuelling, I will have to ask Reworx next time im down there how they dyno rx8s and see if they do something on the car or rollers themselves
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

Well-sy

ahhh reworx. Was hoping to find someone that knows them :)
 
im looking into one of their own label turbos for the 8. How do you find them down there? i.e workmanship etc.

BlitzBoy

They have done all the dyno work,mapping,fuel system,wiring,ECU,etc etc since I have been into rx7s, would not let anyone else touch my car, they are probably the leaders in getting the most power out rx8s in the country (after all they have the fastest 8 in the uk lol)
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

Well-sy

are they any further ahead with the production of the turbo?

neil_jdmr

Quote from: BlitzBoy;641332Guys this figure is FLYWHEEL horsepower, not wheels, if it was wheels it means it has 250 at the flywheel which I doubt for a stock machine.
 
Most Rx8s (231) on dynos produce around 160 to 180 at the WHEELS

I agree,
 
Every single dyno sheet i have ever seen has been a flywheel figure unless it states power @ wheel/hubs.
 
Also great read on the rx8 dyno article
Standard sequential, standard engine, Oem body, 1.2bar, WI

Twins retired. KKK K27 1.25bar courtesy of Jason and Stu

clive

#20
Hi Guys,

For some reason some RX-8\'s will give crazy readings because the ECU picks up that not all the wheels are turning and others dont and locks the thing down onto the first map and yet others don\'t!,

 I can remember Rotorstock 2 when one RX-8 went on the mobile dyno and was fine and then another went on and was somthing like 40bhp down :3Confused

The reason I based this initial figure on RWHP is that my own RX-8 in totaly stock form with just a HKS ECU attached on TDI\'s Rototest VPA-R chassis dynamometer which is way more acurate than rollers and it produced a clearly stated 198.5 RWHP @ 7690 rpm, so to me seeing 204 on rollers sounds about right, (see below)

Dyno machine details and info are on this link,

http://www.tdi-plc.com/index.php?pge=C_dynocam

When I was racing many times I would hear people brag about the horse power of their new engine and yet they went no quicker that the previous season, as I said to Tharik, at the end of the day it\'s how quick the car goes up the road or on the track.


Mark thanks for the link I will have a look later,
All the best Clive

clive

To conclude the above I would be interested in what the RR company says about RWHP or FWHP surrounding this car if Sy has a minute to ring them
All the best Clive