LEMONS CAR on the dyno.......

[Justa4banger]

Well the numbers are in ...............

the #26 car Team Shake and Bake 4 cyl Mustang Mafia MADE.......................











78WHP and 100 wtrq


All that power helped us get the 2nd place finsih.




Oh and did i mention the air fuel ratio was around 20/1 at WOT.......
How this little SOB lasted 13 hours of racing being THAT lean is beyond me.....

[Baron]

LMAO, damn, I am bet it ran a bit warm!

[Justa4banger]

Here's a Dyno vid

Get some coffe, make some popcorn, it takes a while to suffer through the VID

http://s93.photobucket.com/albums/l51/justa4banger/?action=view&current=P1010876.flv

[STRONGNUFF]

Here's a Dyno vid

Get some coffe, make some popcorn, it takes a while to suffer through the VID

http://s93.photobucket.com/albums/l51/justa4banger/?action=view&current=P1010876.flv

LOL, your not kidding...

[donnie90stang]

I was beginning to wonder if it was ever gonna peak!!!

[Cooter]

should borrow a pyrometer from someone. I'm curious to see what your EGT's are.

everyone bags on the 2.3 Lima engine, but it's a pretty sturdy little bastard... 70's technology at its fine... er... decent-est... not the highest HP/CID, but if you breathe on them and/or feed them some bottled boost, they can surprise a lot of people

[87fierose]

lol wow our 84 Rx7 made 108whp when it was getting tuned out at rotary performance in garland. it sat in a field for 7 years. when it first was straped on it made 84whp woooooo. sucks we cant seem to get the little bugs out cause it ran real good around MSRH. minus the clutch exploding

[Justa4banger]

Cooter i bet the EGT's were approaching 2000*...........

We had header bolt issues (kept loosening up) and the motor ran WARM (mid way on the gauge) which i knew was bad since it was really cold out. Starter was acting up due to the heat soak.We have no thermostat and a good water pump, not to mention the hood mods to help get rid of the heat. HAd this been a race when the temps were warmer , we would have burned a piston or 4.

I knew this little motor was tough, Be jesus.........this was just insane. I'm still baffled at how it kept running.

Oh and just for reference this motor in all stock form should have put down 95ish hpto the wheels. , we only have an ALT, we installed a rnager header, modded the airbox and retarded the cam timing (more HP up top).

Just goes to show that the car handled really well and fought its hardest to get that 2nd place finish.

[Murph Tang]

thats awesome.

Great job!

[momo stallion]

haha, that's greatness!

[Murph Tang]

cheap lemons car to get you racing. This car ran in the Oct race and did pretty well!

http://dallas.craigslist.org/dal/cto/1057460435.html

[Baron]

Lol at the ad " lemans racer"

[Justa4banger]

I remember that car. it had some serious toe issues.......Needs front bushings is an understatememnt

[Jetfast50]

how much does the car weigh? if it's fuel injected and lite the computer has already trimmed the fuel, then you put it on a heavy dyno, and it looked to be lean because of the fuel it was trying to burn to make up for the extra weight. just a thought.

[jw33]

I would guess it weighs right around 2K lbs.

[Jetfast50]

that dyno jet is prolly a 248c and i believe the roller is around 3800 pounds, and that model is not eddy current, so the load of the roller and how fast you can accelerate it is what the calculation is made off of. You are having to move 1500 +/- more pounds then the cars actual weight.

[Justa4banger]

I don;t think so, your theroy could be feasible, but the car runns EXTREMELY lean at idle, cruise and WOT.

On top of that i tried to raise the fuel pressure to see if i could get the motor to richen up a bit and nothing changed......

Ether pump is weak, filter clogged or a combination of both.........

Also from my past experience my SVO would be tuned at 11.5 on the dyno and on the street it usually leaned itself out a bit..... (different dyno) maybe 11.8 or so. I also know that with my WB in my SVO if i tuned the car for 11.5/1(on the street).........Hpp's WB claimed my car ran WAY FAT....like 10.5-8/1.

The lean condition also explains the higher than normal temps we were seeing in cold weather during the race. We'll get her sorted out soon enough, Hopefully i can get the lemons heap to break a 100hp LOL

[Cooter]

I've been away from spark ignition vehicles for a long time, but I wouldn't discount Jet's advice on dyno tuning

[Jetfast50]

i don't doubt you have a fuel delivery issue, and the dyno is making it worse. Check it on the street or at the track and i bet its a lot richer then what you are seeing on the dyno. a lean condition doesn't make any temp, because there is not enough fuel to burn. you want to burn as much fuel that the motor can volumetricly consume, efficiently for the given load and atmosphere present. with that kind of load in that shitty atmosphere that motor was workin hard. im sure it would have shown you something different had the kamrf's been reset. Anyone who trust a wb sensor that has sniffed 100+ diffrent kind of cars and trucks is not a sensor i want to trust. and thats why i take my own sensor to the dyno, on the occasion i'm at one now days.

[Justa4banger]

Understood............even with a whored out sensor, it was STILL off the charts lean at idle

Ok now my question......... What was causing it to run hot?

Not ignition timing........ the timing on this engine is crank fire, nothing on that side of the system was touched. I could believe that MAYBE during the timing belt change that cam timing could be a tooth off, but one tooth is 16*. generally these motors don't run worth a crap 16* off of anything . If the crank was off by a tooth it would be REALLY out of wack.

I know ign timing, adv or retard, can raise egt's through the roof fast........ but thats generally ignition timing, which once again is fixed on this engine.

Now you do have me wondering about the belt change. .........Hmmmmm it COULD have happened, maybe this engine can run 16* out of wack on cam timing lol. OR maybe the crank was off a tooth and had the motor ADV/RET for ignition timing. Seems unlikely, but hell weirder things have happened.

[Justa4banger]

Hell we may have had a combination of things not working for us.

timing and lack of fuel..........

[Justa4banger]

Oh one other thing about the Computer trimming the fuel. I know all computers learn a little but since we always use the Battery cut off, that means each time, the car reset itself to stock configuration and relearned again........... once again in theroy....

Damn you Jet.......... you got me thinking and what kills me is i'm over 2500 mile away and not able to test theroy's and find the solution.......... FUCK!!!!!!!!

[Jetfast50]

:D yea if you run a cut off, it should reset every time as long as the system energy is discharged, tap the brakes or turn on the head lights. if the engine coolant temp sensor is bad it can also cause a fuel problem. the factory fuel tables are engine temp vs. load = target a/f. have you checked the codes? whats the computer code? i can prolly burn a chip for it.

I just saw where you said there is no t stat,that can be a problem for the fuel. If it's lean there is no way you can see 2000 egt unless you are crazy retarded on tha cam, but even then your a/f is still 20:1 so there is not enough fuel for 2000 egt's. now if it were running rich, maybe but i doubt it. I've seen what 2000+ egt's can do to a small motor, dead head.

[Justa4banger]

We changed the coolant temp sensor on friday before the race since we did have a code saying it was OUT OF RANGE......... so there's one less issue. then again there's nothing saying AZ gave us a good temp sensor.

we didn;t have the same code later though when we rechecked it.

High egt's are just a guess FYI, i assumed the EGT's were high since that would explain the motor running hot. Keep in mind back in OCT we had everything the same and the car never even budged the temp gauge, and yes we checked it for accuracy.

I guess i need to break out some test gear and really go over the motor. I doubt the EGT's were at 2000* . even in the SVO's prime i ran about 1700* at 28psi making 430+whp