
Harness - pull up or pull down?
#1
Posted 10-02-2012 07:30 AM

Also - any recommendations on which brand and model to buy would be welcome.
#2
Posted 10-02-2012 07:35 AM

#3
Posted 10-02-2012 08:08 AM

Low cost $130 retail. Simpson FX belts. Good quality, made in USA. Latch and link style. What I like about these belts is that the buckle and adjuster are one piece. That means the adjuster is more in front of your belly instead of being over by your hips. Makes adjusting lap belts much easier. Only available as a 3inch lap, 3 inch shoulder, 5 point system. Red, Blue or Black webbing. SFI rated
High cost, $460 retail. SafeCraft belts. BY FAR the best belts I have ever used. Better than Sparco, Willans, Pyrotec etc. Prefered by many Grand-Am/ALMS teams. These are the only cam lock style belt I have found with a buckle/latch one piece adjuster. Best hardware I have ever used. Best adjuster I have ever used. Made just outside of Chicago on a "as ordered basis". Usually only a 2 week lag time. 2 or 3 inch lap, 2 or 3 inch shoulder, 6 point only. several optional buckle designs, pull tabs etc.They are currently black only but are coming out with colors soon. SFI rated, but they offer a free reweb service. Company is owned by Charles Espenlaub.
I currently have no belts in stock of either brand. I always buy belts after the first of the year. SCCA rules give you 2 years plus the remainder of the calendar year. So belts dated December 2012 would expire December 31, 2014. Wait for belts dated January 2013 and they expire December 31, 2015. A full extra year!!!!!
There are lots of brands out there. Everybody has a personal preference. I have given my preferences above. I have reasons for not buying certain brands, that I have chosen not to say. These 2 choices are the only ones I would work from.
Dave
Dave Wheeler
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.
www.advanced-autosports.com
dave@advanced-autosports.com
608-313-1230





#4
Posted 10-02-2012 12:08 PM

Steve Elicati
1994 ITA miata #01
#5
Posted 10-02-2012 12:20 PM

Full disclosure: SMAC chairman, my opinions do not reflect anything to do with the SMAC unless specifically stated.
Todd Lamb
Atlanta Speedwerks
www.atlspeedwerks.com
SpeedShift Transmissions - reliability and performance
Spec Miata / Spec Boxster / Spec Cayman specialist
Spec MX-5 Challenge Series Director
Global MX-5 Cup team











#6
Posted 10-02-2012 01:07 PM

We have had 2 cars in the last 2 years hit concrete walls at over 100mph. Both had safecraft belts. In both cases the webbing was fine, but the hardware had twisted. Shows the strength of their product.
Dave
- KentCarter likes this
Dave Wheeler
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.
www.advanced-autosports.com
dave@advanced-autosports.com
608-313-1230





#7
Posted 10-02-2012 01:49 PM

We need to replace our belts for 2013, and we had looked at SafeCraft belts, however, how-to-purchase did not seem the easiest.
My son and I do share the car for enduros, about 5 per year and either one of these belts would seem to fit the need, with the Schroth Enduro more easily available i.e. thru SafeRacer.
Since you brought up the g-force belts, look at the manufacturers tag for country of origin. If they can't make dog food or tooth paste, I will not trust them to make my safety equipment.
We have had 2 cars in the last 2 years hit concrete walls at over 100mph. Both had safecraft belts. In both cases the webbing was fine, but the hardware had twisted. Shows the strength of their product.
Dave
- Juan Pineda likes this

#8
Posted 10-02-2012 02:08 PM

Since you brought up the g-force belts, look at the manufacturers tag for country of origin. If they can't make dog food or tooth paste, I will not trust them to make my safety equipment.
Hmm, I have no first hand impact experience (thankfully!), but I guess my thinking on the G-Force belts is that they're so popular they must be involved in their fair share of impacts, and if they had real issues we'd know about them. They're certified... right?
Of course, I really have no idea what the actual breakdown of harness manufacturers is in terms of install base.
Currently shopping for new harnesses, torn between another set of G-Force or some "nice" ones.
robert
#9
Posted 10-02-2012 02:25 PM




#10
Posted 10-02-2012 02:53 PM

I have what I consider the "recipe" for a Spec Miata. As soon as I can get 2013 dated belts, I will be adding SafeCraft to my website. Probably around December 1st
Remember belts purchased today, will be dated for 2012 and will cost you a year of use, per SCCA.
A little background on belt certifications. FIA and SFI charge for their certification services. Each belt is not tested. The manufacturer submits a style of belts for testing. If they pass the test, they are certified. Random tests can be done over the course of the certification. Every belt design is certified seperately. 5 point is different from 6 point. Latch and link is different from cam lock. 2 or 3 inche belts are different. Pull up is different than pull down. Do the math, it really adds up. The cost per style is $10,000. As I was told a few years ago. That math really add$ up. That is why G-force only has the one style of FIA belts. While their entire line is SFI certified.
After your item is certified, you buy the labels directly from SFI and sew them on. My understanding is that this is what caused Impact to have a problem. They where outsourcing the labels only. Does this insure that every belt would pass the test. NO. You are betting on the integrity of the manufacturer to sell the product you are expecting. I like Simpson and SafeCraft as they are both Made In The USA
Dave
Dave Wheeler
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.
www.advanced-autosports.com
dave@advanced-autosports.com
608-313-1230





#11
Posted 10-02-2012 03:11 PM

Why is the twisted hardware good??Both had safecraft belts. In both cases the webbing was fine, but the hardware had twisted. Shows the strength of their product.
Dave
J~








#12
Posted 10-02-2012 03:30 PM

- Juan Pineda likes this
#13
Posted 10-02-2012 06:34 PM

Chris
Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns
#14
Posted 10-02-2012 06:40 PM

Why is the twisted hardware good??
J~
I believe Dave W. was referring to the strength of the webbing vs. other brands. In the instance he's noting the webbing didn't stretch/become altered due to the crashes effects but in fact the metal hardware is what ended up "failing".

#15
Posted 10-03-2012 07:16 AM

I believe Dave W. was referring to the strength of the webbing vs. other brands. In the instance he's noting the webbing didn't stretch/become altered due to the crashes effects but in fact the metal hardware is what ended up "failing".
Twisted hardware shows the amount of force developed in the incedent. The fact that the hardware bent before the webbing failed shows the strength of the webbing.
Both incedents where 100+mph into unprotected concrete walls, with no time for braking. Walls very close to track surface. Going into turn 10 at Road Atlanta and into turn 5 at Road America. Fortunately all the safety equipment worked.
Dave
Dave Wheeler
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.
www.advanced-autosports.com
dave@advanced-autosports.com
608-313-1230





#16
Posted 10-03-2012 08:59 AM

On a side note, the webbing is designed to stretch in a crash, reducing the max g load on the driver.
Full disclosure: SMAC chairman, my opinions do not reflect anything to do with the SMAC unless specifically stated.
Todd Lamb
Atlanta Speedwerks
www.atlspeedwerks.com
SpeedShift Transmissions - reliability and performance
Spec Miata / Spec Boxster / Spec Cayman specialist
Spec MX-5 Challenge Series Director
Global MX-5 Cup team











#17
Posted 10-03-2012 09:00 AM

I have had the same belt, bought from the same place for the last 5 years, they are out of date at the end of this year. going back to the same belt and cam lock style. like them allot.I've had the Schroth Profi III 6-point previously and just installed a new set of Profi II-Hans 6-point belts. I like the 2" lap belts, able to get them snugged up well. I got mine through HMS Motorsports. They are pretty much able to set them up with whatever fastener/belt attachment/adjustment you want and turn the order around quickly (like in a couple days).
Frank
TnT Racing
SCCA Ohio Valley Region




#18
Posted 10-11-2012 09:10 PM

Since you brought up the g-force belts, look at the manufacturers tag for country of origin. If they can't make dog food or tooth paste, I will not trust them to make my safety equipment.
We have had 2 cars in the last 2 years hit concrete walls at over 100mph. Both had safecraft belts. In both cases the webbing was fine, but the hardware had twisted. Shows the strength of their product.
Dave
That's great to hear as I just picked up a set of these. (got a great deal, and shipped immediately)
<< We need to replace our belts for 2013, and we had looked at SafeCraft belts, however, how-to-purchase did not seem the easiest. >>
Dave
I had to call to order as their website is under construction. Charles was excellent to work with and the belt quality is incredible. Much better than my old Schroth belt from my track car.
Although I have a question on the sub belt, where did you mount yours to?
#19
Posted 10-12-2012 04:27 AM

Steve DeVinney
Retired mediocre driver



#20
Posted 10-12-2012 06:31 AM

Vick
www.volko.com
Black SM/SM2/"Slap Bracelet Throwback" #12 in the Northeast....if the car was made in the early 90's it should look like it.
1.6L forever! Bring on your '99's and '01's!



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