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alright lads,
well put my car on the dyno pack yesterday and got very bad results.
first run was 163bhp at the flywheel, the guy then checked my timing as i told him the i had got it advanced, the timing was set at 15deg, he shook his head and asked if i wanted to melt a piston, saying that with 95 octaine the timing has to be retarded instead of advanced.
second run got me 170bhp with the timing set at 8deg.
the torque was only 126ft/lb and the torque curve was up and down all over the place.
i put a cold air intake on a few weeks ago, he told me to put the standard airbox back on and go back to him, said it could get me 10bhp.
also said i would be loosing about 12bhp with the irish fuel.
he then started telling me that my car limits at 7700rpm and not 8300rpm, saying that nissans guages read higher than they actually are.
ive heard some bad things about this place, not sure if this guy knows what his talking about or what, although he does have a r34 skyline that is tuned to 700bhp!!
what do you guys think?? the dyno used was a dyno pack not rollers, the hub of the car is used instead of the wheel,
thanks
oh yeah, he also said mss was a waist of time and that i was loosing power with it and told me to leave it off and have the cams activating as normal!!
Are you sure the #'s he read you from the dyno runs werent for your horsepower and torque to the wheels?? 163 to the crank on an n1 seems suspiciously low. Just curious.
8 degree timing makes no sense. How bad is the gas in Ireland? Where I'm at I run 93 octane, and 17degrees timing with no problems. I've even had it as high as 19, but got better results at 17. As for stock airbox making 10 more hp, thats just a lie.
__________________ Serban - EEN President/Founding Father
'93 NX2000: SR20VE Parting out
'95 G20t: SR20DET
we have 95 octaine here in ireland, i had my timing set at 15deg he told me i was mad and put it to 8, i did gain 7bhp when he done that.
also when he was setting up the car he wouldn't lst me look, i had to go into a different room, said it was to do with insurance, during the run i had to sit in the car and couldn't get out, he never explained anything just flicked through the screens calling out numbers......
also told me he dyno'd 2 other vzr's are none mad over 150bhp....
8 degree timing makes no sense. How bad is the gas in Ireland? Where I'm at I run 93 octane, and 17degrees timing with no problems. I've even had it as high as 19, but got better results at 17. As for stock airbox making 10 more hp, thats just a lie.
there is no way you would be losing that much power on fuel over here and for the airbox you wouldnt lose that either.you just need to find the right guy to dyno your car as no one here knows bout them engines. took me a year to find the right guy near me to sort out my car.
Depends what you call 95 octane. We have 98 RON here in australia which is what the japs have as their normal fuel, im pretty sure this is the equivalant to the US's 93.
As I said before, you are running a highly tuned engine from the factory, getting more power out of it is never going to be easy. Your car is basically a race car, Nissan would have tuned as much power while stille being as safe as possible. We told you to advance the timing on the dyno as it can be dangerous if it starts to ping. Also if it pings its going to retard the timing
well. i dunno *** timing is set at he did advance it slighlty.when he got car it was runnig 163bhp. and when finished pushed172bhp he was very surprised because as said abovenissan will have it highly tuned and wont get much more out of it.sounds dodgy where you went. my no..0876117658
yeah i heard bad things about them alright but they are only 20 mins down the road, thats the only reason i went.
but 170bhp from a car that should be 197bhp is very bad!!
he also said the mss is a waist of time nd that i was loosing power!
i dont know what to think, may try somewhere else and see what i get....
Did he pick-up rpm from spark-plug wire?
If yes not always very accurate because of noise. 600rpm is big difference.
Try a Consult to see where rev limiter is.
How does he know where engine is cutting fuel?
Did he gave you any AFR diagrams?
Every car reacts different in CAI. My stock 20ve loosed 10hp when I put a pop-charger air filter directly on MAF. And this was a back to back dyno. Some others had gains. Nothing standard.
So I guess that was a third gear run. If I am right this explains and the low hp.
If you dyno at fourth it will be closer to the gauge readings.
Now, for crank horsepower, you must measure in 4th gear. After a lot of research I have found that most engines with vvl, v-tech, vvti makes more power when the load increased. If you have 180km speed limiter and have to dyno in third gear, you must find a dyno with high inertia.
Remember, try a dyno that really loads your engine.
Also, if the dyno measure crank hp, make a run at third gear and then a run at fourth(until the speed limit), make a comparison chart and you will see that all the curve of fourth gear run will be fatter than third's gears.
