Dyno Run!

[only1db]

well here ya go...numbers are corrected and everything...it was a mustang dyno

few interesting things

1. the engine rock is rediculous
2. there is fuel that sprays out from the 5th injector at higher boost...not good! needs a new elbow?? warranty from alpine??? either way its a fire hazard at higher boost...so we just need to keep it low...

now for the numbers...run number two was the best...(less fuel spraying places)

run #1
WHP= 186
WTQ=234

run #2
WHP= 204.8
WTQ= 230.4

run #3
WHP= 203
WTQ= 227

here are the scanned images for all to look at...the torque curve is off and the guy could not figure out why it was slightly off....but the numbers are right...
http://i46.photobucket.com/albums/f138/only1db/ishdynorun2graph.jpg
http://i46.photobucket.com/albums/f138/only1db/ishdynorun2.jpg

[SilverElantra]

fix that fuel problem asap....but those are some pretty decent numbers...you broke the 200 mark on both hp and trq...pretty good for an elantra...

[evan938]

nice. now run it on a dynojet so people will actually believe the numbers

[KeWLKaT]

that is ****ing good on a mustang dyno.

i like the more torque than hp thing muahahahahhahahha

off the line it makes it awesome

[05xd]

Mustang dyno's are the ones that typically read lower due to the fact that they are loaded right?
F-ing awesome man

What psi were you running?

[ShowOffXD]

Congrats!!!! Are we the only 4cylinder cars that get more torque then horsepower??

[toymachine566]

its derek....

yeah that freaking awsome...i told him that he probably had more torque...just from driving it...

ish is currently outside freezing his *** off...attempting to get the exhaust manifold off...so i can take the head off...

the antifreeze looks like baby poo...real nasty...but thankfully there is no antifreeze in the oil pan and nothing under the vavle cover...so the bottom half should be good to go!!

yeah i figured the numbers were pretty good...but man driving it is everything!!! to be honest...we really dont care what the numbers are...all i know is that is a beast.


oh...he is running 15psi on a 13g

[evan938]

Mustang dyno's are the ones that typically read lower due to the fact that they are loaded right?
F-ing awesome man

What psi were you running?

yeah...if he goes to a dynojet, he'll probably show about 10% better #s

[toymachine566]

thanks guys,

i'll try to track down a dynojet after we get this thing put back together. hopefully we can see more ponies once all the quirks are squared away.

[TSmooth8403]

Awsome man keep it up! :thumbsup:

[toymachine566]

Thanks meng.....The run that we made the most power was the one that the 5th injector elbow wasn't spewing fuel out through it.

I'm gonna have to get a hold of Alpine this week and see if I can get a replacement before the weekend, or see if I can make some sdjustments to the current one. We couldnt do the A/F since I dont have an extra bung welded in for it. Also, I had the chance to replace the 02 sensor(started getting a CEL about running to rich bank 1) and TPS a couple minutes before we got started but didnt reset the ecu so it was still riding a little funky, but after the dyno the car must have re-learned it's fuel curves.

Thaks for the props guys.....

BTW, for what its worth, the guy didnt start recording or whatever until 3k thinking it wouldnt make any power down below. But after driving the car he said there may be some more power in the lower RPMS.

We will be going back after the rebuild :D

Next we'll work on getting some 1/4 times for you guys :)

[yamaha]

I was hoping to see some higher numbers from that 13g, but considering you were on a dynojet, which reads about 10% lower, would put you at rougly 218-222whp, good job!

[toymachine566]

I was hoping to see some higher numbers from that 13g, but considering you were on a dynojet, which reads about 10% lower, would put you at rougly 218-222whp, good job!
:confused: this was on a mustang dyno

but thanks for the compliments :)

I'm hoping to get some more power once all the misc things fixed up and running strong, such as;
the head swap (warped head)
exhaust leaks (at least 2-3) including the manifold
the MAF CEL
and the worst one.....the 5th injector elbow that spews fuel under high boost :(
I'm glad we caught that one before anything worse could happen.

[evan938]

lets not try to say what he would be at on a dynojet sean...we all know no one here believes it...doubt me and ill show you my dyno thread :D

[cobase]

Wow, nice to see people boosting Elantras and those are great numbers! Already seems too much for an open-diff FWD, no? Any plans for a limited-slip, or did I miss that thread? 230+ lb-ft torque under 4k RPM is perfect - that's like right at 70mph in 4th or 5th gear. Passing must be sweet.

[cubic_16]

sweet... grats

[bmxdad]

Isn't a Mustang more accurate as far as number are concerned? Seems showing higher numbers is nice, but real numbers make more since does'nt it?
Just wondering. Also, is this with the stock compression?

BtW ... nice job. Just ran my Beta II with only a 2.5" exhaust and got 124whp and 123fb/tq. ... getting ready for turbo. :)

[Estopatitiana]

200 hp in that tiny car, you are set my friend

[only1db]

^ agreed...its quick...but like he said...1/4 mile times are in the future...as soon as island dragway opens up...hell...i'll go side by side...so everybody can see the real comparision...when he gets me at the end by atleast 5 or 6 car lengths...hell if not more...

dont worry toy...like i said...come this spring we will be doing some stuff to it...including the new manifold and the wideband

and damn brother that wiring....

[yamaha]

:confused: this was on a mustang dyno

but thanks for the compliments :)

I'm hoping to get some more power once all the misc things fixed up and running strong, such as;
the head swap (warped head)
exhaust leaks (at least 2-3) including the manifold
the MAF CEL
and the worst one.....the 5th injector elbow that spews fuel under high boost :(
I'm glad we caught that one before anything worse could happen.

:owned:

Thanks for fixing my mistake. How did you warp that head? I have a extra exhaust manifold gasket and MAF lying around if you want to try them.

[toymachine566]

Wow, nice to see people boosting Elantras and those are great numbers! Already seems too much for an open-diff FWD, no? Any plans for a limited-slip, or did I miss that thread? 230+ lb-ft torque under 4k RPM is perfect - that's like right at 70mph in 4th or 5th gear. Passing must be sweet.
Yup definitely too much, between the torque steer and not being able to go WOT until the middle of 2nd (on dry pavement) it makes it a little tough to "get-up-and-go" in city driving....I'm still learning some of her sweet spots :D
I will be in the process of trying to track down an LSD insert soon. Hopefully sometime this spring.

sweet... grats
thanks :)


Just wondering. Also, is this with the stock compression?
This is with the decrompression plate.


Thanks for fixing my mistake. How did you warp that head? I have a extra exhaust manifold gasket and MAF lying around if you want to try them.
lol, i re-read your post and figured. I warped the head by not de-torquing it the right way and by torquing it down to 82ft-lbs on every bolt when it only required 22+18 ft-lbs and two 65degree turns.
And I would definitely take the MAF and exhaust manifold gasket off your hands. Would the MAF be compatible with an 05 (connector/wiring)? let me know how much you want for them :)

Thanks again guys

[ricerrx7]

Isn't a Mustang more accurate as far as number are concerned? Seems showing higher numbers is nice, but real numbers make more since does'nt it?

Since most people dyno on a dynojet, it's more accurate to compare numbers from the same machine.

[only1db]

^ exactly...both cars at the same shop...thats the only true way...but hey...he likes it...and really thats all that matters.

[dmdicks]

Only1,

Weren't you the one that purchased your kit 2nd hand? If so them I'm sorry you have no warranty. If not then we can certainly help you out. When you say fuel sprays from the elbow do you mean that fuel comes out where the 5th injector is mounted? If so have you tightened down the bolts that hold the injector down? Also check to make sure the 5th injector O-ring is ok. We've seen this happen when the 0-ring is damaged for some reason. You can also put a second smaller o-ring on the injector body itself.

[toymachine566]

lol Dave, It was my entry level kit we dynoed. We just posted it from only1db's house since we were already there.

I cant say where the leak is w.out looking at it. I do know that it is the last spot where the injector mates to the elbow.

How can I take the injector out? Pulling it or twisting?

[seguin22]

when you shift your car does your revs hang for a bit until you get into gear. because mine does that and it drives me nuts.

[Estopatitiana]

i dont know much about turboes but wouldnt a blow off valve help w/that?^^^

[ricerrx7]

when you shift your car does your revs hang for a bit until you get into gear. because mine does that and it drives me nuts.
All of our cars do that. It's programmed into the ECU.

[NY2002ElantraGT]

Whats awsome is your pushin out more HP than a supercharged V6 Tib on NT.com. Hes pushin 193WHP untuned! way to go!

[toymachine566]

when you shift your car does your revs hang for a bit until you get into gear. because mine does that and it drives me nuts.
I know exactly what your talking about.....Mine started after swapping my clutch/flywheel, so I just assumed it was the Fidanza Flywheel. What kind of clutch combo do you have?

All of our cars do that. It's programmed into the ECU.
Mine never hung as long as they do now. But like I said above I always thought it was due to the lighweight flywheel and it was just something I would have to get used to. Sometimes if I hit the clutch pedal too fast it will send my revs up a little more. I thought maybe the flywheel was just moving sooo fast while boosting.
Whats awsome is your pushin out more HP than a supercharged V6 Tib on NT.com. Hes pushin 193WHP untuned! way to go!
Thanks, who's tib? what stage? tuning makes a big difference though, I bet once he's tuned he'll see way better numbers.

[OPZ]

I know exactly what your talking about.....Mine started after swapping my clutch/flywheel, so I just assumed it was the Fidanza Flywheel. What kind of clutch combo do you have?

Mine never hung as long as they do now. But like I said above I always thought it was due to the lighweight flywheel and it was just something I would have to get used to. Sometimes if I hit the clutch pedal too fast it will send my revs up a little more. I thought maybe the flywheel was just moving sooo fast while boosting.


Mine does that and I have stock tranny.

[toymachine566]

hmmm, I've never noticed it until now. Once we get the car back together I'll see if I can take a viedo clip of it and see if yours hangs as long. If I wait for it with the clutch pedal in, it takes a good 2-3 seconds to come back down (i mean like "mississippi" seconds)

[NY2002ElantraGT]

TuscaniJay, hes got an auto V6 Tib. non intercooled alpine supercharger

[Cypher]

mustang dyno reads lower because its loaded making it a "more realistic" hp number since that's closer to what you'd see on the street. thats why mustang dynos are perfered when tuning a car for the street. good numbers btw isa. exactly what i'd expect from teh small 13g. sorry about saturday. i had to fix some things on my car then had to go out and buy some things.

[toymachine566]

Thanks mang, I honestly didn't expect you on Saturday lol.

Looking over the paper work, they put down my car's weight at 3500+-lbs. Is that right?

[Cypher]

i really wanted to! i'm just catching up on sleep from the entire lack of it so i'm trying to take it easy.

that weight isn't right. my xd weighed in at 2700 with me in the car with the back seat out and the trunk emptied. it can't weigh that much.

[toymachine566]

thats what I was thinking, does the weight they put in afftect the dyno run itself?

[Cypher]

http://www.elantraxd.com/forums/showthread.php?t=12813&highlight=weighed+elantra

for reference.

and no it shouldn't

[ricerrx7]

Do they use the weight of the car to figure out how much to load the dyno? I'm not familiar with mustang dyno's...

[Cypher]

edit: yup i was wrong lol. weight does matter in mustang dynos. makes sense if you think about it tho since its a load bearing dyno.

"well weight has everything to do with horsepower if you are going to attempt to dyno the car by OBD-II.. On an actual dyno, the car accelerates the rotation of a known mass and a force calculation is made. On the dyno, they are trying to make the only variable in the hands of the car the amount of force it can put out at the drive wheel.

For a very simple explination -- To calculate the horsepower given only vehicle speed, you have to calculate the acceleration by measuring changes in velocity over time, then multiply the acceleration by the mass of the vehicle to derive force (oh; and do a lot of unit conversions in there if you are doing lbs, mph, and HP) Remember F=ma? The reality is a bit more complicated since you end up really talking about rotational acceleration, etc. but the idea is the same..

This is essentially the methods that many 'dashboard dyno' products use. The accuracy of such a measurement is highly dependent on two things:

1) Knowing the correct mass of the vehicle, currently, including driver and gear and gasoline. A variation by only a few pounds could significantly affect the accuracy.

2) The accuracy and frequency of the measurements.

You should only need to collect two pieces of data from OBDII to make a good dyno graph out of this kind of data - RPM and speed. Polling only these two values should get you a couple of data points per second for each value. That should be enough data to get you into the ballpark of what your car is putting out, and should definately get you data good enough to be able to benchmark your car run-for-run against itself (ie to test performance modifications; etc.)"

[only1db]

^ so he is actually making more power because the car is lightier???

dmdicks..the fuel was spraying out of the copper washer from the actual elbow to the injector...i didnt look like there was anything to tighten up in that particular instance..the fuel was spraying straight up from the copper gasket.

toy...i guess we really need to get back there and make sure he as the proper weight...this time its video time.

[toymachine566]

^ so he is actually making more power because the car is lightier???
or less, If it takes so much power to pull a 3500lb car then wouldnt it take less power to pull a 2800lb car? These things are confusing. I got a list of places that have dynojets. I'll call around once the car is finished.

toy...i guess we really need to get back there and make sure he as the proper weight...this time its video time.
sounds good to me :)

[05xd]

Yea,I would def tell them the next time to put the correct info in

[Mahonroy]

They may still have all the data and be able to enter in a different weight to recalculate the graphs...

[Estopatitiana]

thats funny, whne i dynoed they just slapped it on and i went for it

[Cypher]

but was that a dynojet or mustang dyno?

[ricerrx7]

or less, If it takes so much power to pull a 3500lb car then wouldnt it take less power to pull a 2800lb car? These things are confusing. I got a list of places that have dynojets. I'll call around once the car is finished.

My thought is that for a 3500pound car, they will load the dyno more, taking longer for you to accelerate the rollers, reading less horse power. I could be wrong though...

[only1db]

thats what i was thinking...so he would actually be making more power then what was given due to the improper stiffness of hte rollers...

[Estopatitiana]

but was that a dynojet or mustang dyno?

i dont know, all i remember is the guy saying there is a LOT of resistance under that thing...but he never said "this is a mustang dyno" why? do they usually not calculate weight on a dynojet?

[only1db]

its just how fast you can roll the single roller....not how fast you move a weighted item...something like that he explained it breifly...form what i hear...mustang is closer to real numbers on the street...dynojets are great for getting higher numbers...but not really accurate for the s treet....so they claim.

[ricerrx7]

Horsepower is a bogus number anyway, but it's the best way to compare the output of an engine.

[toymachine566]

numbers are for bragging rights, buttt dynos and time slips are what count, I think. :D

But then again Corona has a strabge way of postiing thing s:D

[Cypher]

hmm i could go for some corona. u bastard isamael!

[toymachine566]

lol jim, doing the head tomorrow, you shoulde come up after like in the soummertime then we ciould like hang out lolllllll

[only1db]

^ on my way now...you better have recovered by now!!