Upgraded PPF
10-24-02, 10:08 PM
#26
1993 RX7 R1
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Originally posted by Fd3BOOST
Well you did ask for opinions.
Mr. Stock is yours damaged now?
Well you did ask for opinions.
Mr. Stock is yours damaged now?
Last edited by Mr. Stock; 10-24-02 at 10:11 PM.
10-25-02, 01:37 AM
#27
Upgraded PPF is likely a more fatigue resistant steel.
Welding a cracked PPF is only a temporary solution. Welding the crack and adding a "bridge" is probably a good solution to prevent future PPF damage.
Damon B.
How do PPFs break/crack? Your launching with "slicks"? Probably not, your launching with auto-x tires. Slicks are usually referred to as actual drag slicks which launch on really sticky pavement at the drag strip. Slicks for drag cars are very different than slicks for auto-xing (R-compound vs. actual slicks). The forces that the PPF has to deal with during drag lauches are huge in comparision to launching at the auto-x course.
You were running some old Yoko's, they aren't too sticky at all for drag lauches.
I had a 35K mile R1 PPF that was nearly broken in two because of drag launches on MT drag slicks.
Jeff
Welding a cracked PPF is only a temporary solution. Welding the crack and adding a "bridge" is probably a good solution to prevent future PPF damage.
Damon B.
How do PPFs break/crack? Your launching with "slicks"? Probably not, your launching with auto-x tires. Slicks are usually referred to as actual drag slicks which launch on really sticky pavement at the drag strip. Slicks for drag cars are very different than slicks for auto-xing (R-compound vs. actual slicks). The forces that the PPF has to deal with during drag lauches are huge in comparision to launching at the auto-x course.
You were running some old Yoko's, they aren't too sticky at all for drag lauches.
I had a 35K mile R1 PPF that was nearly broken in two because of drag launches on MT drag slicks.
Jeff
10-25-02, 02:38 AM
#29
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Hi black99
There are some editions of Option2 special videos.
But The driver who shows in videos is Mr. Ikeda.
He is now 1st driver.
He is a very talented driver.
There are many drivers for RE-A.
Thank you
There are some editions of Option2 special videos.
But The driver who shows in videos is Mr. Ikeda.
He is now 1st driver.
He is a very talented driver.
There are many drivers for RE-A.
Thank you
10-25-02, 04:11 AM
#30
Lurking..................
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Oh this was vol. 33 of Option2 , the RX7 Special I was refering to. I think it's an older video. Just wanted to know if I saw you in the video at all or not because both the blue and the white RE Amemiya race cars are on the video.
10-25-02, 07:09 AM
#31
Someone mentioned welding reducing the strength of metal ... depends. Most aluminums are heat treated to get enough strength to be worthy for use as load bearing pieces. When you weld you lose the heat treatment in the area around the weld and yes the part is weaker in that area.
Many steels do not suffer weakening during welding. Typically the chosen weld rod is stronger than the base metal and is selected to provide proper chemistry to not weaken the original material. What you do get with welds are flaws. Cracks originate from flaws. This is why it is important to locate your welds properly and design for low enough stress to control fatigue.
Many steels do not suffer weakening during welding. Typically the chosen weld rod is stronger than the base metal and is selected to provide proper chemistry to not weaken the original material. What you do get with welds are flaws. Cracks originate from flaws. This is why it is important to locate your welds properly and design for low enough stress to control fatigue.
10-25-02, 09:03 AM
#32
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[QUOTE]Originally posted by jspecracer7
Dragon has met Inukai. He's a driver for the white re amemiya FD. Speaks english good too. I'll be meeting him this sunday!
[/QUOTE
Can I come too?
Dragon has met Inukai. He's a driver for the white re amemiya FD. Speaks english good too. I'll be meeting him this sunday!
[/QUOTECan I come too?
10-25-02, 09:38 AM
#33
Lives on the Forum
Originally posted by turbojeff
Upgraded PPF is likely a more fatigue resistant steel.
Damon B.
How do PPFs break/crack? Your launching with "slicks"? Probably not, your launching with auto-x tires. Slicks are usually referred to as actual drag slicks which launch on really sticky pavement at the drag strip. Slicks for drag cars are very different than slicks for auto-xing (R-compound vs. actual slicks). The forces that the PPF has to deal with during drag lauches are huge in comparision to launching at the auto-x course.
You were running some old Yoko's, they aren't too sticky at all for drag lauches.
I had a 35K mile R1 PPF that was nearly broken in two because of drag launches on MT drag slicks.
Jeff
Upgraded PPF is likely a more fatigue resistant steel.
Damon B.
How do PPFs break/crack? Your launching with "slicks"? Probably not, your launching with auto-x tires. Slicks are usually referred to as actual drag slicks which launch on really sticky pavement at the drag strip. Slicks for drag cars are very different than slicks for auto-xing (R-compound vs. actual slicks). The forces that the PPF has to deal with during drag lauches are huge in comparision to launching at the auto-x course.
You were running some old Yoko's, they aren't too sticky at all for drag lauches.
I had a 35K mile R1 PPF that was nearly broken in two because of drag launches on MT drag slicks.
Jeff
I know there are a bunch of broken PPFs from guys on street tires as well though. It seems that if you're hammering on the car hard enough to break the PPF, that you surely have no empathy for it as you would have to know you are abusing the car.
