Took the tib to be dynoed today. Right now my only performance mod is a KORE CAI. I've got the elantra GT cam waiting to be installed, my TB/IM are in the mail (hopefully), I'm looking around for a place to do my exhaust pipe and I have the SAFC here, which I will install last. Once all that's done, which will hopefully be by mid-august, I'll post up the "after" dyno sheets. Here are the ones from today:


Notice how the A/F takes a nose dive after 4000 RPM.
This sounds like a job for the SAFC, no?


This may be a newbie-type question, but is there any way to estimate the HP at the flywheel? I did a search and didn't find anything, maybe my search terms were bad . . .

thanks,

 

If you want big power you estimate big losses. I have heard anywhere from 10-50+% estimates and ALL of them were presented as supposedly industry-standards. Nobody knows. Probably between 10-30%. The only way we will find out is if somebody has their engine out and wants to pay to have it dyno'd then put it in the car and dyno the car. Probably not going to happen soon.

Or you can trust Hyundai. They say 140HP and we usually see 100-110 for stock cars. You can do the math on that one.

 

i'd go with 17 percent loss on a manual tranny

 

Using that math, the loss is somewhere between 21.4 and 28.5 percent, putting my car at somewhere between 154.6 and 170.1 HP at the flywheel. If you simply estimate a 17% loss, that's 146.4. Who knows. I hate math anyway.

thanks for the input.

 

the A/F should nose dive BEFORE 4000 RPM. When running full throttle the A/F should be between 11 and 13.

For those who are wondering why the dyno looks a tad screwy, it'd because the HP/Torque scales are not the same.

Twisted-H
Next time you hit the dyno, make sure you ask them to sync the Torque/HP scales. It makes comparing dyno's easier.

 

Most people use the 15% estimate for manual trannies. This would be around 119hp stock. I think the 2.0L Beta is between 16-17% myself. That would put you around 143-144hp now.

 

Hey, Twisted! You went to the right place! Did you find it okay? Did you see their Supra and 3000GT? By the way, how much did they charge you?

With just a CAI, I think those numbers are pretty good. Especially, torque seems to be pretty strong.

 

You can do what's called a run down test(or something like that). Where they bring the rollers up to a certain speed then pull it out of gear and let internal friction do the braking. Let's you know how much HP is needed to stop the rollers and basically how much HP your tranny saps.

 

Hmmm pictures aren't comming up. All i see is an "x" indicating no picture.. sad.gif

Rich.

 

Just checked, pics are still there . . . try reloading.