Maxspeedingrods replacement hardware?

[Jamesmoore]

I’ve got a late b230 with the max speeding connecting rods installed

I’m doing some bottom end work soon and there’s a chance I’ll be changing the rod bearings

Can anyone confirm what hardware I need. The rods don’t currently have arp bolts in, just the ones that come with the rods.

I’m aware I can reuse the hardware, but I’d rather just use new. Is it safe to use arp bolts ? What part number do I need for a pack of bolts

The only thing I can find on their website is ARP 2000 3/8" bolts

Thanks

 

[dl242gt]

When I look at the current ebay ads for their rods. They say the ARP bolts are included. So if they were the ones that came with the rods it should be ARP already.

 

[283SD]

Some of the ARP bolts are torqued to stretch check the instructions.

 

[Truebeliever]

My rods came with “arp” hardware, but I’m fairly certain it was counterfeit. I bought some real arp bolt and compared them and you could see some obvious differences.

 

[Jamesmoore]

My rods came with “arp” hardware, but I’m fairly certain it was counterfeit. I bought some real arp bolt and compared them and you could see some obvious differences.

Which bolts did you buy ?

 

[ludi]

I currently have the same problem. I wrote to ARP and asked if they manufacture for Maxpeeding. No response yet. They are 3/8x1.6 inch (40.6 mm) bolts. I have now ordered genuine ARP bolts.





Many shops indicate that the bolts should be purchased individually. Among others, KLRacing points out that connecting rods often come with counterfeit ARP bolts.

Best Regards, ludi

 

[Jamesmoore]

I currently have the same problem. I wrote to ARP and asked if they manufacture for Maxpeeding. No response yet. They are 3/8x1.6 inch (40.6 mm) bolts. I have now ordered genuine ARP bolts.

View attachment 36502

View attachment 36503

Many shops indicate that the bolts should be purchased individually. Among others, KLRacing points out that connecting rods often come with counterfeit ARP bolts.

Best Regards, ludi

Ludi this is perfect !

Thanks again for your expertise

So to confirm, I can order a set of 3/8 X 1.6 arp bolts and they will work, for example - https://ebay.us/m/f63meB

Could you provide the link to the bolts you ordered ?

 

[ludi]

They should be correct. I ordered these (I live in Germany):

ARP 2000 Pleuel Schrauben 3/8" 1.600 UHL (9,525 mm)

- Gewinde: 3/8" / 9,525 mm - Länge: 1,600" / 40,600 mm - Material: ARP 2000 (zugfest: 1516 N/mm²) Technische Daten finden Sie im Produkt.

www.tzr-motorsport.de

Best Regards, ludi

 

[244tiCanuck]

Between the cars I've put Maxpeedingrods "ARP" bolts in, I've done about 80 000km, driving like a jerk and routinely going to 8000rpm.

Never had an issue. With ARP lube, burnished threads (lightly torquing and untorquing several times) they stretch the right amount for the torque applied and the size.

If they are counterfeit, they're good counterfeits. Forged heads, rolled threads, correct amount of stretch expected for the amount of torque applied.

 

[culberro]

Between the cars I've put Maxpeedingrods "ARP" bolts in, I've done about 80 000km, driving like a jerk and routinely going to 8000rpm.

Never had an issue. With ARP lube, burnished threads (lightly torquing and untorquing several times) they stretch the right amount for the torque applied and the size.

If they are counterfeit, they're good counterfeits. Forged heads, rolled threads, correct amount of stretch expected for the amount of torque applied.

Same.
I wouldn’t get too worked up over using the “fake” ARP bolts.

 

[ludi]

Best Regards, ludi