Interesting new Rule coming in 2014 - Page 2

Jeff Niceswanger · 03-24-2013, 08:18 AM

A couple yeas back, I was running a Modified car in Time Trials at the US Nationals and his collector came off in the traps. I was 133 mph,he was 150 plus. He was 6-8 car lengths ahead of me and his collector spit out from under his drivers door area. It was spiraling and coming strait at me. I was just hoping it did not start going end for end and go through my windshield. I ran over it with both right side tires and after the run I looked under the car. It had put huge dent in the frame, and right beside the dent,was the braided fuel lines.Missed them by less than a 1/2 inch.He spent all day at a local muffler shop trying to repair the flatted and twisted collector so he could continue to race.

Run to Rund · 03-24-2013, 11:15 AM

I hope NHRA is not talking about the old style bolt on collector extensions that use the 3-bolt flange. I would think three 3/8" bolts with a 1/4" thick flange would be sufficient.

Glenn1066 · 03-24-2013, 11:44 AM

My collectors end at my transmission cross member, so I drilled a hole through the cross member and the collector, installed a grade 8 bolt double nutted. I check my nuts before each run (hum that doesn't sound right!). I wonder if that will pass tech next year.

Glenn

Alex Denysenko · 03-24-2013, 04:20 PM

We have Mark's slip on collectors on all 4 of our cars, thousands of runs between them,never lost a collector yet.
Grade 8 1/4 20 Allen bolts lock washers and nyloc nuts do the job just fine at a cost of less than $5 per car.
JUST WHO OWNS SFI ANYWAY?

Istill have a major hard on for Lokar after stiffing us on a $50 contingency payment for a trans dipstick and tube so we won't be using or selling any of their stuff anytime soon no matter what!

Wade_Owens · 03-26-2013, 11:17 AM

Quote:

Originally Posted by A56

Not all of us can weld our collectors on, those of us with real race headers would never get them on and off the car.

Mark Lelchook
D/ED F/SA

I fully agree, Alex just loves installing the headers now, we would have to lift the engine way up if we welded them on. That would be a nice added feature in teardown.

I was at Indy several years ago when a '68 S/S Cobra Jet lost a collecter in the waterbox, he powered over the collector and sent it into a bystander to the right of the water. It was not a pretty experience.....

Like Mark said, it could save someone from getting hurt, but, there are several avenues to end up with the same result.

Wade

dannyboy · 03-26-2013, 11:51 AM

NASCAR's exhaust systems are bolted in at least 3 places from header to exit at side of car. Tab on collector and pipes have spring with washer and nut to allow for vibration. This was the way I did it a few years back and passed tech many times.

BBF67 · 03-26-2013, 11:57 AM

When was the last time a techman actually got down and looked under your car?

03-24-2013, 08:18 AM	#1
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 894 Likes: 684 Liked 1,031 Times in 368 Posts	Re: Interesting new Rule coming in 2014 A couple yeas back, I was running a Modified car in Time Trials at the US Nationals and his collector came off in the traps. I was 133 mph,he was 150 plus. He was 6-8 car lengths ahead of me and his collector spit out from under his drivers door area. It was spiraling and coming strait at me. I was just hoping it did not start going end for end and go through my windshield. I ran over it with both right side tires and after the run I looked under the car. It had put huge dent in the frame, and right beside the dent,was the braided fuel lines.Missed them by less than a 1/2 inch.He spent all day at a local muffler shop trying to repair the flatted and twisted collector so he could continue to race. __________________ Jeff Niceswanger 3740 SS

03-24-2013, 11:15 AM	#2
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 583 Likes: 8 Liked 54 Times in 27 Posts	Re: Interesting new Rule coming in 2014 I hope NHRA is not talking about the old style bolt on collector extensions that use the 3-bolt flange. I would think three 3/8" bolts with a 1/4" thick flange would be sufficient.

03-24-2013, 11:44 AM	#3
Glenn1066 Junior Member Join Date: Dec 2007 Posts: 69 Likes: 41 Liked 1 Time in 1 Post	Re: Interesting new Rule coming in 2014 My collectors end at my transmission cross member, so I drilled a hole through the cross member and the collector, installed a grade 8 bolt double nutted. I check my nuts before each run (hum that doesn't sound right!). I wonder if that will pass tech next year. Glenn

03-24-2013, 04:20 PM	#4
Alex Denysenko Senior Member Join Date: Jan 2002 Location: Michigan City IN Posts: 633 Likes: 0 Liked 4 Times in 3 Posts	Re: Interesting new Rule coming in 2014 We have Mark's slip on collectors on all 4 of our cars, thousands of runs between them,never lost a collector yet. Grade 8 1/4 20 Allen bolts lock washers and nyloc nuts do the job just fine at a cost of less than $5 per car. JUST WHO OWNS SFI ANYWAY? Istill have a major hard on for Lokar after stiffing us on a $50 contingency payment for a trans dipstick and tube so we won't be using or selling any of their stuff anytime soon no matter what! __________________ Alex Denysenko NHRA 3038 SS, 3305 STK - IHRA 6 SS, 330A STK Moneymaker Racing LaPorte Indiana 219-861-1214 www.moneymakerracing.net

03-26-2013, 11:51 AM	#6
dannyboy Junior Member Join Date: Jul 2012 Posts: 99 Likes: 299 Liked 42 Times in 10 Posts	Re: Interesting new Rule coming in 2014 NASCAR's exhaust systems are bolted in at least 3 places from header to exit at side of car. Tab on collector and pipes have spring with washer and nut to allow for vibration. This was the way I did it a few years back and passed tech many times.

03-26-2013, 11:57 AM	#7
BBF67 Junior Member Join Date: Dec 2001 Posts: 89 Likes: 0 Liked 8 Times in 4 Posts	Re: Interesting new Rule coming in 2014 When was the last time a techman actually got down and looked under your car?