dynoed my car...

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

ok guys.. this is just a simple baseline for me..i own a 92 240sx with 240k miles..my mods are injen intake (no cold air) , 5 zigen rocket exhaust, project silvia test pipe..

the dyno was done on a 90 degree day and was done in 4th gear...

my numbers are 155 hp and 155 tq

if these numbers are hard to read..they are located at..

http://www.imagestation.com/al...06743

please tell me if i am at par with what everyone else is running...thanks..

Post by **SSS** » Mon Jun 16, 2003 8:41 pm

One question, that is rear wheel horsepower isn't it?DE or E?

Post by **Aries** » Mon Jun 16, 2003 8:41 pm

It's a dynojet. That means RWHP. And it's a 92, so it's a DE.

Post by **Silent Drifter** » Mon Jun 16, 2003 8:41 pm

Not bad for 240K

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

yup... its a ka24de.. and this is at wheel hp..i was suprised i got this much.. maybe i should have dynoed at 3rd gear.. i would of got more hp and i wouldnt have hit the speed limiter at 6500 rpm..

Post by **jam149** » Mon Jun 16, 2003 8:41 pm

Wouldn't really matter. HP is NOT dependant on the gear you dyno in.

HP is simply torque*revs. So with a different gear, you are putting out more torque at the rear wheel, but you are actually turning less revs (rear wheel revs).

4th is usually used because it's a 1:1 ratio, and in the transmission, skips the idler shaft.

joe

Post by **JJ240** » Mon Jun 16, 2003 8:41 pm

Well sometimes it makes a difference, although it could have been because the dyno was screwy. My friend put down 127 in 4th and 158 in 3rd on his turbo civic. He should have been closer to 210 though. There were 5 or 6 other cars there that day that all put down alot less than they should have so we know the dyno was off.

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

well we dynoe'd a brand new honda accord auto v6 and it was 190 hp at wheel and it was right on spec.. we also dynoed a trans am at 340 hp and that was on spec to..

does anyone else have a dyno of a near stock ka?

Post by **jam149** » Mon Jun 16, 2003 8:41 pm

I dyno'd my 1992 S13 on a Mustang chassis dyno. The only mod was that I cut off the muffler and replaced it with a straight through pipe (cat still in place).

HP was 136 at it's highest., 133 average over 3 runs.

As far as:

Quote »127 in 4th and 158 in 3rd on his turbo civic[/quote]

There's something wrong there. Gear selection shouldn't make more than a couple of HP difference (due to changes in driveline losses).

Seriously, HP at the wheels will not be affected by gearing. It's in the physics.

joe

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

so... i highly doubt that the intake makes 20 hp... anyone else?

anyone else?

Post by **lessthanjakejohn** » Mon Jun 16, 2003 8:41 pm

perhaps your timing is off (for the better if no knock)

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

even with timing i doubt 20 hp can be found...someone have a stock dyno or a near stock dyno?

Post by **_dk** » Mon Jun 16, 2003 8:41 pm

http://www.datsuns.com/Tech/stock98-240sxdyno.jpg

sometimes you get lucky... my first gti-vr6 was faster with I/E/chip than some others were with cams and headers.

Post by **:: orion ::** » Mon Jun 16, 2003 8:41 pm

The reason you will see higher numbers from a 4th gear pull is that the dyno will have more time for sampling...i.e. better reading (more data points). It's not "more" HP, but a more accurate measurement of actual HP/TQ.

You're actually cheating yourself by dynoing in 3rd...I've seen a MINIMUM of 2-3rwhp difference between 3rd and 4th in my car.

Later - Brian

Post by **encasemyheart** » Mon Jun 16, 2003 8:41 pm

Those are really good numbers. Good job.

Post by **mickee** » Mon Jun 16, 2003 8:41 pm

anotheraznguy wrote:well we dynoe'd a brand new honda accord auto v6 and it was 190 hp at wheel and it was right on spec.. we also dynoed a trans am at 340 hp and that was on spec to..

does anyone else have a dyno of a near stock ka?

i had 100hp 120 trq..... when i had mine.. bone stock with a bad rod and burning clutch... on 91 octane....

that is completely bone stock 89 ka24e....

Post by **Dattebayo** » Mon Jun 16, 2003 8:41 pm

I think i agree...

anotheraznguy wrote:so... i highly doubt that the intake makes 20 hp... anyone else?

anyone else?

This whole thing is crap. I dont believe this for a second. Dyno jet is easy to screw with so someone is either messing with you, or you know how to use a spreadsheet program. By the way, what are you doing wasting money on a dyno for a car with almost no mods? At 240k? If you even own a 240, i suggest you understand that you cannot get 20hp from an intake and nothing. In order for that chart to be right you'd have to have the full I/H/E on a car with that mileage. Let it all absorb a little before you come back.

Post by **Jimmyg41** » Mon Jun 16, 2003 8:41 pm

2BN_S13 wrote:I think i agree...

This whole thing is crap. I dont believe this for a second. Dyno jet is easy to screw with so someone is either messing with you, or you know how to use a spreadsheet program. By the way, what are you doing wasting money on a dyno for a car with almost no mods? At 240k? If you even own a 240, i suggest you understand that you cannot get 20hp from an intake and nothing. In order for that chart to be right you'd have to have the full I/H/E on a car with that mileage. Let it all absorb a little before you come back.

Yes the dyno graph is somewhat suspect but there's nothing wrong with spending a little cash for a somewhat baseline dyno. Some people like to make sure that the money they spend is actually gaining performance.

Post by **WDRacing** » Mon Jun 16, 2003 8:41 pm

If someone wants to dyno they're car with very few mods, it concerns no one but that person....PERIOD. If you ever plan on improving your car and don't have a baseline dyno your not very smart to begin with.

As far as an intake making 20hp, that seems a bit high. But he does have a dyno printout. Lets try to be more trusting...if he were saying 200hp at the wheels I'd be the first person to throw the BS flag. We're all family...

WD

Post by **U12 2NR** » Mon Jun 16, 2003 8:41 pm

i read this thread over and over. I haven't seen anyone claim that an intake makes 20 hp.

Post by **Aries** » Mon Jun 16, 2003 8:41 pm

anotheraznguy wrote:a 92 240sx with 240k miles..my mods are injen intake (no cold air) , 5 zigen rocket exhaust, project silvia test pipe..

The numbers are right for those mods.Now were it just an intake, or just an exhaust, I'd throw the BS flag...But with those mods, and a well maintained motor 155/155 is perfectly normal. Sadly, most of our cars are less than well maintained and suffer greatly in the numbers...

Post by **WongFeiHung** » Mon Jun 16, 2003 8:41 pm

What kind of 1/4 times do you guys think this car wiill run??

Post by **Silent Drifter** » Mon Jun 16, 2003 8:41 pm

high 15's low 16's depending on driver

Post by **AelSic** » Mon Jun 16, 2003 8:41 pm

Aries has a very good point. Although it doesn't apply to this car the new Honda RSX with the new AEM V2 intake pulled 20 Horses with just the intake swap so it is very possible to make those gains with the minor upgrades anotherraznguy made on a good day. Although they didn't post their location who knows it could have been ideal conditions also. So all you haters need to quit.

Post by **SSS** » Mon Jun 16, 2003 8:41 pm

I would like to see that dyno graph AelSic. Unless the intake system was severly restricted, i do not believe such large gain is possible on an RSX; nor any NA motor.

Post by **AelSic** » Mon Jun 16, 2003 8:41 pm

It's not featured on their website so I can't link you to them but if you can find a 05/03 Import Tuner they have the results in their power pages section.

Post by **toki** » Mon Jun 16, 2003 8:41 pm

a stock Corvette can be factory upgraded with Intake and Exhaust that adds either 50 opr 55hp. I dont think 80% of the power would be comming from the exhaust alone? But then again that's a V8 too.

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

welll...this was dynoed in south amboy nj at a shop called crazy horse..the main reason why i did the dyno was cause i know my engine is having major issues..tons of blowby etc.. bad compression.the dyno is fine considering that the other car in my group a brand new honda accord v6 was right on the number of what it was supposed to have. 190but.. im not very slick with a spreadsheet so i dont think i can do this...

Post by **anotheraznguy** » Mon Jun 16, 2003 8:41 pm

last time with a clogged cat i ran 15.6

Post by **Nismo_Freak** » Mon Jun 16, 2003 8:41 pm

Mustang dynos read more accurately results than an Dynojet. Mustangs also always read lower hp figures than the Dynojets.

So that 20whp difference is really like 5whp difference.

Either way it's an old thread, just thought I'd chime in.

If you have alot of blow-by then you have bad leakdown, which means you have bad piston rings and/or a worn bore (which is why you have bad compression). Time for a rebuild.

I vote the 155whp number is too high, especially with a motor in bad condition like yours with so few mods. I'd ball park it around 145whp.

Besides, each dyno is different. You need to realize that dynos are nothing but tuning tools, not a way to compare your car to another person's car.

dynoed my car...

dynoed my car...

Re: dynoed my car...

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