celicacobalt

Finally finished up my tune today on the dyno and I couldnt get the 300whp goal I wanted but I did get around 358 wtq and 261 whp. I dont have the sheet with me right now so i'll double check when i have it in hand. Thats more than I really wanted on the torque because I'm worried about the tranny but I have a temp gauge for it so I will be watching it carefully. I'm hoping to make it out to the track on the 23rd to see what i can do with the new power. wont get a really good time till the fall though. Car feels crazy fast now from a stop. I'll try and post a dyno sheet up when I get home. A/f ratio i think is high 11's to 12 which the dyno guy said should be fine since i have a return fuel system i dont have to run as rich.

EDIT: Here is dyno sheet!

_UnLiMiTeD_

why is the hp so low compared to tq, whats it lacking to make some better numbers?

Altiery54

click

elecblue06

iTrader: (1)

holy cow wtf ,.. where's the bottleneck man.. theres no reason you should be making alost 100 more trq then hp but still good numbers nam cant wait to see it run at the track i still really want to see your car.. after i get mine boosted we should meet up maybe do a photoshoot and a run or 2

IonNinja

baby turbo

this on the GT28RS?

elecblue06

iTrader: (1)

i think so .. but that turbo should flow enough for 310 hp or so ..

hell there's someone on here running the hahn kit that said they're pushing over 300.. somethings weird here

IonNinja

wasn't there some other issue with the car on the previous dyno?

elecblue06

iTrader: (1)

his intake manifold was leaking i think.. but still something seems like a bottlenck here idk maybe clogged cat?

Dunkinuts

weak.......................






j/k

nice numbers

BlueSS-supercharged

got torque?

REDFOCZ

Nice TQ numbers, but something sounds strange, always though that the turbo would put out more HP then TQ. Anyways nice job man cant wait to see what you pull at the track.

celicacobalt

dyno added to 1st post now.

Well the car has something going on but we cant figure it out. The turbo is the gt2860rs and its fully open so nothing is holding any boost back and its only giving me 11 psi. So its either on my setup i maxed the turbo out or there is something wrong with the turbo. Either way I dont have the money to replace the turbo right now and everything seems to be running fine but it just wants to make a shitload of torque but not so much hp. You can see my setup in my sig for what else is on it. The cat isnt clogged its brand new from zzp on the 3 inch downpipe. i have the 2.5 inch exhaust which would be the only bottleneck besides the intake manifold and throttle body.

mike25

i thought a while back i remembered red2.4 saying he made like 290 or 300 at like 8 or 9 psi..i never thought 2 psi would yield that much of a difference

WhiteSSBalt

mad torque yo.

Installer1

Since hp isn't really a tangible thing, versus just a mathematical calculation, it is most likely a mechanical situation.

diesels for example...can make upwards of 1000+TQ while only yeilding half that number for Hp measurements. That, however, is probably due to the low rev limit applications of the diesel motor.

Maybe a tune of some type to increase the rev limit may help even the numbers out, since the torque should be fairly peaked/constant from 2500-3000rpm and above until it tapers off.

???

Same idea with the S2000...almost 100 more hp than tq out of the motor, simply because of the high rev limit which allows to the car to produce the most amount of work from such little torque.

Altiery54

tq. on a 4cyl?

Jackalope

I wouldn't call it a torque monster but they are good numbers. Torque monster is a lable reserved for big blocks and diesels.

davekicksyourass

Not trying to hate, but considering that the car is an automatic has anyone thought that might just be a torque spike from the car down shifting. I have an auto that I've dynoed many times and if the person running the car isn't used to doing dynos with autos it's real easy to get a torque spike and from looking at the shape of the curve that is what I would guess it is. Example when I had my auto neon it dynoed at 102 hp(weak I know) and 182 lbs of torque. I definitely wasn't making that much torque.

elecblue06

iTrader: (1)

hmm I didn't think of that lol good one

celicacobalt

i see what you are saying but since my tuner knows autos he said its a pain but he has to change the tranny tune to force it not to downshift on the dyno then after we are all done he puts the normal tranny tune back on so it wasnt that.

cDub

you've kind of got the right idea, but the wrong information.

diesels have a TON more torque than HP because of the long stroke of the crankshaft which is why their rev limits are so low. the revolutions are also limited by the size of the engine, many times upwards of 11+litres.

the 00 to 03 s2000 has a f20c aka 2.0L dohc vtec engine. rpm redline of (dont quote me on this) 8600 rpms. the reason it can handle such high rpms is because of the short, short stroke. the 04 to present has a little bit of a reduced rev limit (8200rpms) because of the increased displacement; 2.2L f22c.

cam specifications, stroke of the crankshaft, displacement of the engine and the ablity of the engine to breathe are key in figuring how much an engine can handle when it comes to revolutions per minute.