Dyno'd yesterday

QWKSNKE · 04-03-2005, 08:41 AM

Drove the 93 down to Blake's yesterday and put it on the rollers. First 2 pulls showed the car was way lean (13.2 a/f) Finally got a enough fuel put in it on the 3rd run. Put down 478 rwhp/501 rwtq.

Not sure what is going on but the car is losing a LOT of power at 5000 rpm. Brian did see the boost drop 2 psi or so around that rpm and try to move back up. New motor is actually making less power than the old motor from 4000 rpm and up.

Here is the graph.

Green= New motor
Blue = Old motor

Gotta review my datalogs from the pulls and see what's going on.

On the last pull, it sounded like a rocker arm backed off. So i went to pull it off the dyno and noticed that there was absolutely no oil pressure. Brian brought me back home so that I could get the truck and trailer to go back and pick up the car. I get down there to pick it up and it has oil pressure

Anyways, it looks like for the first time in 5 or 6 years, that the 93 will not make it to FFW

But I will bring the truck/trailer in case some one breaks

May put the Focus in the Focus Frenzy class

slvrbullit · 04-03-2005, 10:29 AM

Congrats on the numbers even tho they are lower than before they are still impressive. Sucks that you are having oil presssure issues, maybe you can get it worked out soon.

Wall96cobra · 04-03-2005, 12:51 PM

Hell Lee you still have 2 weeks until FFW, don't give up that easy.

Wicked · 04-03-2005, 02:46 PM

Belt slip and tight new motor. A new motor isn't gonna make the power the old one did.

When I built the motor in my 89', I felt it get stronger everyday as it gained mileage. My 02GT felt the same way, felt strongest after 4-5K miles.

Good luck getting it figured out, Bro.

QWKSNKE · 04-03-2005, 04:05 PM

Quote:

Originally Posted by Wall96cobra

Hell Lee you still have 2 weeks until FFW, don't give up that easy.

Money Pit has broke the bank! Never should have put this damn supercharger on. I can only think of one motor problem I ever had with nitrous in the 4-5 years I sprayed it. About ready to go back to it.

Italian LX · 04-03-2005, 04:53 PM

Quote:

Originally Posted by Wicked

Belt slip and tight new motor. A new motor isn't gonna make the power the old one did.

Yeah, we already wrote the drop-off and the lower overall curve on both of those.

Wicked · 04-03-2005, 05:05 PM

Quote:

Originally Posted by QWKSNKE

Money Pit has broke the bank! Never should have put this damn supercharger on. I can only think of one motor problem I ever had with nitrous in the 4-5 years I sprayed it. About ready to go back to it.

Yeah but you weren't making the power you have with the blower either.

86GT · 04-03-2005, 05:57 PM

When you compare the logs look at the temps. They can really change things. It also seems as if you were still running lean with the new motor.

The oil pressure seems weird. Are you using the factory oil sending unit and guage. It might be worth changing the sending unit out. I have never heard of lossing oil pressure and then regaining it. This would lead me straight to the guage or sending unit. The only other thing would be low oil level.

QWKSNKE · 04-03-2005, 07:14 PM

Quote:

Originally Posted by Wicked

Yeah but you weren't making the power you have with the blower either.

made more torque than with the blower but yeah hp wise, the blower is 100 more.

Brian,
I thought that on the 478 pull there was no belt slip

Wall96cobra · 04-03-2005, 07:27 PM

Quote:

Originally Posted by QWKSNKE

Money Pit has broke the bank! Never should have put this damn supercharger on. I can only think of one motor problem I ever had with nitrous in the 4-5 years I sprayed it. About ready to go back to it.

Well I wouldn't blame all your problems on the blower, I really don't think it is the cause of them. With nitrous you only had the power when you turned the nitrous on plus you didn't have a tune for it, you just had the stock tune....but with the supercharger you had an entirely new tune so there were alot of learning curves plus you had the power all the time so yeah the stock motor went but it was time for it to. The rocker thing can't really be blamed on the blower either, it's just another new thing you had to play with to get right.

04-03-2005, 08:41 AM	#1
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Dyno'd yesterday Drove the 93 down to Blake's yesterday and put it on the rollers. First 2 pulls showed the car was way lean (13.2 a/f) Finally got a enough fuel put in it on the 3rd run. Put down 478 rwhp/501 rwtq. Not sure what is going on but the car is losing a LOT of power at 5000 rpm. Brian did see the boost drop 2 psi or so around that rpm and try to move back up. New motor is actually making less power than the old motor from 4000 rpm and up. Here is the graph. Green= New motor Blue = Old motor Gotta review my datalogs from the pulls and see what's going on. On the last pull, it sounded like a rocker arm backed off. So i went to pull it off the dyno and noticed that there was absolutely no oil pressure. Brian brought me back home so that I could get the truck and trailer to go back and pick up the car. I get down there to pick it up and it has oil pressure Anyways, it looks like for the first time in 5 or 6 years, that the 93 will not make it to FFW But I will bring the truck/trailer in case some one breaks May put the Focus in the Focus Frenzy class __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

04-03-2005, 10:29 AM	#2
slvrbullit Super Moderator Join Date: Dec 2004 Location: on the water Posts: 1,280	Re: Dyno'd yesterday Congrats on the numbers even tho they are lower than before they are still impressive. Sucks that you are having oil presssure issues, maybe you can get it worked out soon. __________________ 2012 Jeep Wrangler Unlimited--- too many mods to list, about to be sitting on 1 ton axles. 2000 Ford F-350 Dually Lariat LE Crew Cab Short Box 7.3 auto 168,000 miles

04-03-2005, 12:51 PM	#3
Wall96cobra ooooo cake!!! Join Date: Dec 2004 Location: Saks, AL Posts: 1,630	Re: Dyno'd yesterday Hell Lee you still have 2 weeks until FFW, don't give up that easy.

04-03-2005, 02:46 PM	#4
Wicked Friends Join Date: Dec 2004 Location: Pell City, AL Posts: 1,371	Re: Dyno'd yesterday Belt slip and tight new motor. A new motor isn't gonna make the power the old one did. When I built the motor in my 89', I felt it get stronger everyday as it gained mileage. My 02GT felt the same way, felt strongest after 4-5K miles. Good luck getting it figured out, Bro. __________________ 2001 Cobra 'Vert Procharged and Intercooled 455rwhp/441rwtq Work Car: 2005 Honda Odyssey 400 whp Turbo V6, 6-speed, full cage, H&R Suspension, Brembo Brakes

04-03-2005, 05:57 PM	#8
86GT Member Join Date: Mar 2005 Location: Sacramento California Posts: 449	Re: Dyno'd yesterday When you compare the logs look at the temps. They can really change things. It also seems as if you were still running lean with the new motor. The oil pressure seems weird. Are you using the factory oil sending unit and guage. It might be worth changing the sending unit out. I have never heard of lossing oil pressure and then regaining it. This would lead me straight to the guage or sending unit. The only other thing would be low oil level. __________________ EEC Analyzer A9M, TwEECer, 306ci, 73mm C&L w Tuner Tube, Cobra Intake, 42# inj, Edelbrock 6037, E303 cam, 155 fuel pump, FPR, 70mm TB, E-Fan, 3.55 gears, Powerdyne 9psi actual 5psi...way more.