E.T. loss ?

greg fulk · 11-18-2009, 08:00 PM

Hey guys dad has a ? for ya.... we put a new engine in his car just before labor day. The car ran fine BUT @ a race in late Sept. the car lost .12! Now we can't find it ? we have checked or changed everything! We've had jets in it from lean to smoking fat no differance . We have changed tires & wheels . Changed timing , fuel , launch points from 2000 to 3500. The car also lost about 2 mph? ( this is all 1/8th mile) Thing is it's running in better air now then it was Labor Day? 0h cam lift is good too?? Any ideas?

buzzinhalfdozen · 11-18-2009, 08:25 PM

I'm going to assume no datalogger, Given the fact you;ve changed most everything as far as engine tune, i'd have to lookat torque converter? Really not enough info to make a really good guess however converter can definately cause this without any obvious symptoms. Joe

Glenn Hayes · 11-18-2009, 08:26 PM

Torque Convertor.

greg fulk · 11-18-2009, 08:51 PM

That would make some since. The car also slowed in reaction time...as in dad went up some 10lbs in front air pressure to try & cut a light!

Glenn Hayes · 11-18-2009, 09:00 PM

Greg,
I've been told that this guy does a Killer job building convertors.
Click here: http://www.ultimateconverter.com/testimonials.html

Shawn Blair · 11-18-2009, 09:18 PM

I agree, converter has a problem!!!

Shawn

Dave Turner · 11-18-2009, 10:13 PM

Park the Nova; race a Maverick.

Mark Yacavone · 11-18-2009, 10:20 PM

If it is the converter, there will be obvious symptoms and it won't last long.
Is the stall really high or low? Trap RPM real high?

buzzinhalfdozen · 11-19-2009, 08:38 AM

Mark, I stated no obvious symptoms because most of the converter issues I've seen guys have other than an obvious ET change They are unaware of whats "different" during their run. With a datalogger it's pretty easy to see it, even a playback tach helps. A just complete failure is easier to diagnose than a damaged converter. You are correct in they should be seeing something different in stall speed or finish line RPM. Hope you all find your issue. Please post your findings. Joe

Bob Mulry · 11-19-2009, 09:21 AM

Just like the old days.........

Flying by the seat of your pants......

NO MPH............

A good place to start is SPRINGS or RINGS

Bob

11-18-2009, 08:00 PM	#1
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	E.T. loss ? Hey guys dad has a ? for ya.... we put a new engine in his car just before labor day. The car ran fine BUT @ a race in late Sept. the car lost .12! Now we can't find it ? we have checked or changed everything! We've had jets in it from lean to smoking fat no differance . We have changed tires & wheels . Changed timing , fuel , launch points from 2000 to 3500. The car also lost about 2 mph? ( this is all 1/8th mile) Thing is it's running in better air now then it was Labor Day? 0h cam lift is good too?? Any ideas? __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

11-18-2009, 08:25 PM	#2
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: E.T. loss ? I'm going to assume no datalogger, Given the fact you;ve changed most everything as far as engine tune, i'd have to lookat torque converter? Really not enough info to make a really good guess however converter can definately cause this without any obvious symptoms. Joe __________________ Joe Buchanan SS/BX 3117

11-18-2009, 08:26 PM	#3
Glenn Hayes Member Join Date: Feb 2009 Location: Weeki Wachee, Florida Posts: 348 Likes: 416 Liked 18 Times in 12 Posts	Re: E.T. loss ? Torque Convertor. __________________ "Real Race Cars Have Tailgates"

11-18-2009, 08:51 PM	#4
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: E.T. loss ? That would make some since. The car also slowed in reaction time...as in dad went up some 10lbs in front air pressure to try & cut a light! __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

11-18-2009, 09:00 PM	#5
Glenn Hayes Member Join Date: Feb 2009 Location: Weeki Wachee, Florida Posts: 348 Likes: 416 Liked 18 Times in 12 Posts	Re: E.T. loss ? Greg, I've been told that this guy does a Killer job building convertors. Click here: http://www.ultimateconverter.com/testimonials.html __________________ "Real Race Cars Have Tailgates"

11-18-2009, 09:18 PM	#6
Shawn Blair Member Join Date: Dec 2007 Location: Everson, WA. Posts: 122 Likes: 1 Liked 0 Times in 0 Posts	Re: E.T. loss ? I agree, converter has a problem!!! Shawn __________________ Shawn Blair 6383 SS 634 STK

11-18-2009, 10:13 PM	#7
Dave Turner VIP Member Join Date: Oct 2005 Location: Schomberg, ON, Canada Posts: 1,222 Likes: 1,606 Liked 364 Times in 138 Posts	Re: E.T. loss ? Park the Nova; race a Maverick. __________________ Dave Turner SS/GT #1153

11-18-2009, 10:20 PM	#8
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,782 Likes: 2,874 Liked 5,070 Times in 1,932 Posts	Re: E.T. loss ? If it is the converter, there will be obvious symptoms and it won't last long. Is the stall really high or low? Trap RPM real high? __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

11-19-2009, 08:38 AM	#9
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: E.T. loss ? Mark, I stated no obvious symptoms because most of the converter issues I've seen guys have other than an obvious ET change They are unaware of whats "different" during their run. With a datalogger it's pretty easy to see it, even a playback tach helps. A just complete failure is easier to diagnose than a damaged converter. You are correct in they should be seeing something different in stall speed or finish line RPM. Hope you all find your issue. Please post your findings. Joe __________________ Joe Buchanan SS/BX 3117

11-19-2009, 09:21 AM	#10
Bob Mulry VIP Member Join Date: Apr 2002 Location: Coarsegold, CA Posts: 1,016 Likes: 57 Liked 320 Times in 102 Posts	Re: E.T. loss ? Just like the old days......... Flying by the seat of your pants...... NO MPH............ A good place to start is SPRINGS or RINGS Bob __________________ Bob Mulry 7516 STK A & M Motorsports