the staff of Motorsport Marketing
the staff of Motorsport Marketing Writer
10/6/16 9:42 a.m.

Story by Bill Holland

Our cars are held together with a dizzying array of fasteners– all sorts of nuts and bolts, studs and washers. They may not be as captivating as the components they attach to one another, but don’t take them for granted. A chain is only as strong as its weakest link, and faulty fasteners have the power to sideline entire automobiles. The stakes become even higher at track speeds.

When it comes to race-ready hardware, ARP is one of the biggest names in the business. The company serves clients at every level of motorsports, all the way up to today’s leading Formula 1, NASCAR and NHRA teams.

ARP prides itself on doing everything in-house to assure optimum quality control, and its Southern California facilities are ISO 9001:2008 and AS9100 registered.

We recently visited their plant and came away with a pop quiz of sorts: Can you answer these 15 questions about hardware destined for motorsports use?

Read the rest of the story

AWSX1686
AWSX1686 Reader
10/6/16 11:34 a.m.

Neat info!

Now I feel like I need to rebuild my engine just so it has proper fasteners....

Chas_H
Chas_H Reader
10/7/16 4:05 p.m.

This is nothing but a commercial for ARP. Many mistakes or misrepresentations are present.

dean1484
dean1484 MegaDork
10/7/16 5:41 p.m.
Chas_H wrote: This is nothing but a commercial for ARP. Many mistakes or misrepresentations are present.

Ok so correct them. Seriously!!! Just saying some one is wrong does not help. Bring the tech. Wright a follow up article with facts citing sources so we can all learn somthing.

dean1484
dean1484 MegaDork
10/7/16 5:43 p.m.

@The OP. That article has a ton of info in it. Thanks for putting that together. I am going to have to read that several times and book mark it for future reference.

Chas_H
Chas_H Reader
10/7/16 6:18 p.m.

In reply to dean1484:

OK, I'll start with the claim head gaskets are located by the head fasteners. That might be the case with a very few engines, but most engines have dowels to locate both the head and the head gasket.

But I'm gonna stop there. I'm not a maker of fasteners or a publisher of a magazine. If someone wants to pay for my expertise they can step forward.

BA5
BA5 New Reader
10/7/16 8:59 p.m.

In reply to Chas_H :

Although much of the information is trivial for anyone familiar with fastener engineering (a common issue I run into as an engineer:the overwhelming majority of technical articles are written for the lay person and fall under "stuff I pretty much already know"), I would disagree that the information is incorrect. Some things may be a bit overstated, but I would not say is either misleading or incorrect. The lube, tighten bolts, remove, clean, then loctite and tighten procedure they mention is probably well into the realm of diminishing returns, but still technically correct and applicable.

Chas_H
Chas_H Reader
10/8/16 9:22 a.m.

In reply to BA5:

I never claimed it was all incorrect.

BA5
BA5 New Reader
10/8/16 3:07 p.m.

Well.... I wouldn't say any of its incorrect. That's at least what I meant.

Chas_H
Chas_H Reader
10/8/16 5:20 p.m.

In reply to BA5: Are you claiming that head gaskets are indeed located by the fasteners, and a switch to studs from bolts will locate them better, as the article does? A technical article should not include overstatements or product hype; this article is basically ad copy.

Chas_H
Chas_H Reader
10/9/16 9:36 p.m.

Studs don't "give" any more than bolts of equal cross section. Changing thread pitch changes the load on a fastener if the tightening torque remains the same. In the case of your Volvo, it sounds more like a head gasket or engine temperature issue, rather than one of fasteners. I've done a lot of work on Volvos in the past and never had an issue with fasteners or head gaskets. I'm not knocking replacing bolts with studs. It was the suggestion that studs would locate a gasket better than bolts, and that is just not so.

bearmtnmartin
bearmtnmartin Dork
10/10/16 12:50 a.m.

Actually I think the point made was that head assembly is easier when using studs as they act as a guide to slip the gaskets over. There is no lining up required.

Didn't see too much misinformation really. And if you wanted to talk to fastener experts in order to gain material for a story, where would one go if not ARP? Seems as good a source as any. And most likely cheaper than you.

Chas_H wrote: In reply to dean1484: OK, I'll start with the claim head gaskets are located by the head fasteners. That might be the case with a very few engines, but most engines have dowels to locate both the head and the head gasket. But I'm gonna stop there. I'm not a maker of fasteners or a publisher of a magazine. If someone wants to pay for my expertise they can step forward.
Chas_H
Chas_H Reader
10/10/16 8:44 p.m.

In reply to bearmtnmartin:

I'm gonna guess you never changed a head gasket on an engine with studs, or ever. There is no trick to placing a head gasket down on a set of dowels. So far my advice has been free; how is anyone is gonna be cheaper? Why don't you stick to a subject you actually understand or know something about?

300zxfreak
300zxfreak New Reader
2/10/20 3:04 p.m.

In reply to Chas_H :

So, your "advice" is limited to one item, head gasket intallation, and is "free". But you cite other "misrepresentations" with no identification of them and wish to charge for your "expertise".

I say, put up or shut up.

 

ChasH
ChasH Reader
2/10/20 3:44 p.m.

In reply to 300zxfreak :

I did offer other advice. It's up to you to read it. If all you got is bragadoccio take your own advice.

GeoS
GeoS New Reader
2/12/20 8:24 p.m.

Good info. I always enjoy these types of articles. 
 

ARP has a very good reputation in this area. I would certainly trust their advice over random internet posters. Does it promote their brand? Sure. Having some skepticism is healthy. Even better if it leads one to learn more on the topic. 
 

I have this book on the shelf in my garage. Way more detail than I will ever need. Still an interesting / nerdy read. 
 

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