Hey there guys! Thread bump with an actual dyno picture attached! I am preparing my car for the upcoming meet and the tuning shop and myself decided on running a dyno before and after to compare the results at the same dyno shop.

Here is a graph of my car before the mods.

They have already installed all of the products that I purchased and will be running another dyno run either tomorrow or Wednesday. I'll be sure to post up those results as well once I get them.

Base car mods include:
Borla exhaust, SR Motorsports flywheel

Post mods of car include:
SR Motorsports flywheel, Racing beat Revi/Air Duct, RP Bonez high flow cat, Turbo XS exhaust MS Front bumper/Rear bumper.... no comments about these please.. :)

One more thing that I will say is that they only took the car up to 7,250 and I havent had a chance to ask them why this was done yet... Have to get back to you on that. I'll ask that for the next run, after the mods are installed, to take it up to at least 8,500...

Here is the graph...

(The car sounds so damn wicked with the RP Supercat/Turbo XS exhaust)!!!!

looks good, i am guessing it is a mustang dyno!!

beers :beer:

Hey there guys.. They dyno'd my car after the installation of the mods and the final whp number is 185. Not too bad, but the official number of my car comes once I get it tuned by Scott this weekend! :)

I cant wait! I'll post that graph on Sunday night most likely. We will be performing WOT dyno tuning on Saturday and streetability tuning on Sunday. You will most likely see 5 more graphs posted up from N/A and FI cars within the next week...

GT Motorsports still has my car right now though because I wanted them to install a resonator that a lot of people have had success with for keeping the noise levels down. It's a straight through design with mild muffeling built in. Should be just what I need. This car is wickedly loud and needs some calming down. It's supposed to drop the overall rating by 3 or 4 db's but more importantly keep the buzzing noise to a minimum....

Thankx to everyone that recommended the resonator to me!! I hope it works as well as it has for you!! Thats for sure!!

http://www.rx8france.com/forum/upload/log.jpg


http://www.rx8france.com/forum/upload/courbe1.jpg


hello


a dyno from an european car :

my mods :
new spark plugs (less than 2000 miles)
magnacor 10mm wire
ogura clutch
ogura flywheel
custom dynamic admission (twister green)
re amemiya header
midpipe (no cat)
greddy sp2


so 187 rwhp .... like you

It's really strange the bump at 7200-7300 rpm (auxillary port open) ... is it normal ...
do you have an explain ??

next dyno :
- with agency power pulley kit
- emanage with tuning

bump is perfectly normal and your engine seems to be operating very well.

New coils installed today. No time to dyno this weekend or next but hopefully I will be able to show a change over my last run and show the difference new coils make. That will be the only change since my last run.

Does your car feel any stronger to warrant another dyno like mine did? let me know when you plan on going and I will try and stop buy for support, then we can get some Williams Bro's BBQ!!

Yes it does. Not shure how much is imagined but I definately feel more on the top end which is what I expected.

Just back from Dynolab in Marietta. I'm not sure what's going on with the chart above 7K RPM but it did the break up thing 3 times. Each time we moved the contact locations. I then cleared the memory and tried it again for this 4th run of the day which was the best but this breakdown in the signal is really bothering me. Two other 8's ran and did not have this problem.

My change before this run is new coils only. No modifications. There is a modist gain over the last run.

Session #3: https://www.rx8club.com/showpost.php...3&postcount=24
186.8 HP, 137.1 FPT

Session #4 (today):
190.6 HP, 138.9 FPT

https://www.rx8club.com/attachment.p...id=79910&stc=1

still interferance with all the squiggles but ---you got to 190 and 138 which aint bad dude!
what did the others do? Seem like we Ga boys have some strong eights!
OD

Charlie was over 200. Can't remember specifically.
RX8volution: 187.2 rwhp - ~138ft/lb torque

Sivler8, that's the dyno computer not being fast enough to keep up with the data input at high rpm, or at least that's what the dyno guy told me ... not too many engines running past 7500 rpm

I took my car to Mazcare and Charlie pulled the plugs. Found a mixed set of plugs. New type leeding and old type trailing. My car flooded around 17,000 mi. and the dealer only put in new leeding ones. The trailing have been in for 26,000 miles. He changed my plugs out for a brand new set and the car is running better now. He seems to think that could have made a difference on the dyno. I really don't feel like paying $50 again just to see if the plugs were the problem. Wish there was such a thing as a free dyno!

Maybe, maybe not. Mine was done the same day with out any of noisy lines. I'm not convinced that it's not the dyno but plugs and coil issues have shown up like this before.

could it be your little HKS ignition gizmo. Sorry, I cant remember what it was called. Your car has always had smooth outputs, without that signal breakup, even before the addition of the HKS unit. But you also have very few miles too.

Silver,

I've done some searching but i can't seem to find a list of your mods, if any. Nice dyno BTW.

View my VBGarage

I'm not referring to the ragged lines, but rather the missing data points, I know for a fact that my coils & plug wires are in A-1 shape when it happened on my runs :dunno:

Roger that. I don't know that it's an rx8 issue but maybe a dynojet ignition pickup issue. i have not seen your graph but if it drops out at hi rpm I gotta wonder if it's to many events to capture. No definitive answer, just guessing.

Which is pretty much exactly what Team Rx8 had said. I am removing my head from my ass now!

Astra tuning

Exhaust with racing kat, DSC and PCM reflash, racing intake duct, new pcm wiring loom, 41/9 rear LSD @ 16Kg, engine light tuning by Astra, direct steering rack, running with Shell V-Power 100 octane fuel.
Standard car had about 200hp ECE95 (SAE equivalent) @ the crank.....as usual here in Europe.

yeah lets stick with the actual measure power and not use the "run down" calculated flywheel power. that will only cause confusion and arguements.

so alex you started with about 180 at the wheels and now have just ove r208 at the wheels . thats great. what temps are you seeing in the exhaust- could the regular CAT stand the heat from that tune? is anyone running a Supercharger on the street with one of Astra's tunes?

We fit a FIA homolgated kat (usually fitted on WRC cars) 'cause temperatures are exceeding 1250°C in long flat-out situation.
We started from a 134hp@the wheel situation @ 8655rpm.
Any of our customers is using our VolumeX superchrged kit, simply 'cause the gearbox is too fragile to work with more than 35Kgm of torque...and the aircon must be removed. We are now developing a 6speed sequential gearbox application, but it will not be ready before October.
We usualy fit the VX engine on a racing chassis...for hillclimbs or shows.

134 hp from what engine?
Paul.