Turbo Bolts

[SteveO000000001]

I got a quick question.

I snapped one of the turbo bolts (4 bolts that hold the turbo to the manifold)

I also f'd the thread up on the other 3 bolts.

Should i just buy 4 new bolts from mitsu...or IS there bolts i could buy at a hardware store? Im really short or on money so thats why im asking!

 

[snowborder714]

You want OEM. And make sure to get 8 washers - 2 for each bolt.

 

[talonDSMerr]

Don't use hardware bolts, use OEM. Hardware bolts are generally a different material and can cause galvanic coupling, which will make you SOL the next time you try to remove them.

I'm using the ARP Chromoly turbo bolts.

 

[JusMX141]

The thread size and pitch is 10mm x 1.25, and I believe the standard length is 80mm. It's best to find hardened bolts for this application as the standard-grade hardware store bolts can stretch and weaken from the excessive heat and pressure.

 

[SteveO000000001]

What if my hardware store has hardened bolts?? What grade bolts would i need?

 

[JusMX141]

Metric hardened bolts are normally black in color, but not always. The 8.8 bolts aren't hardened (approximately equaivalent to a Grade 5 SAE bolt), but they will probably suffice if you really need an inexpensive alternative.

Bolt Grade Markings and Strength Chart

 

[SteveO000000001]

So would i want to look for grade 10.9

 

[snowborder714]

The stock are grade 11. I personally wouldn't trust an hardware bolt, even if they are 10.9 bolts, as they typically aren't hardened.

 

[1bad95tsi]

I wouldnt use anything other than oem style either i believe the last set i ordered was from sbr and didnt cost very much

 

[99GST83]

I tried the hardware 10.9's and as they said, due to the heat and tension on the bolts, I had to replace them about 4 months after with stock bolts. DONT GET HARDWARE BOLTS!!!

 

[SteveO000000001]

Ok so what are the part numbers for the bolts and washers...and wheres the cheapest place to order them

 

[snowborder714]

Bolts

Washers

 

[SteveO000000001]

Can anyone give me the exact size of the turbo bolts.

And what type of washers?

 

[snowborder714]

Bolts are flanged 10x1.25x80. The thread length is 22mm and has a 14mm head. The last 2mm of the bolt is tapered and has no threads.

Washers are 20mm coned disk. CAPS also has a 10.5 in their description, but I'm not sure what it means.

ColumbusDSM - 2G Turbo FWD Bolt & Fastener Wizard

 

[SteveO000000001]

Thanks!!!

 

[SteveO000000001]

Welp i called Fastenal - Home | Fastenal and got 4 bolts custom ordered...

10x1.25x80mm parcial thread, tapered end. 12.9 Strength!!!!

4$ a piece.

I also got 4 coned washed for .76c a piece!

So screw oem...hahaha

 

[snowborder714]

What's shipping like on that stuff? I haven't found a good hardware place that doesn't rape you in shipping and handling charges.

Happen to have the SKU numbers for the hardware?

I didn't see any coned washers on the site - just conical. Maybe I missed them?

 

[mindset]

EXTREME PSI : Your #1 Source for In Stock Performance Parts - ARP 8740 Chrome Moly Turbo to Manifold Bolt Set: Mitsubishi Eclipse 90-99

 

[snowborder714]

And if you do some research, you'll know that ARP turbo bolts are not recommended over OEM ones.

 

[mindset]

And if you do some research, you'll know that ARP turbo bolts are not recommended over OEM ones.

Just ordered some yesterday...

 

[snowborder714]

Well, they're the chrome moly ones, not the stainless steel ones. I would think those would be adequate. I can't say I've read about many people using them, or at least for an extended period of time. I definitely haven't heard of any reviews though. I'd say try them out and then write a review on them!

 

[SteveO000000001]

Hey go to fastenal...they have locations all over the united states. I dont have to pay any shipping because im just gonna go pick them up! There actually right here in my town. As far as the washers..and bolts..you need to call them and they special order them! Fastenal is world known for providing bolts to roller coaster manufactures haha! 12.9 is stronger than stock oem so i dont forsee having any issues!

 

[mindset]

Well, they're the chrome moly ones, not the stainless steel ones. I would think those would be adequate. I can't say I've read about many people using them, or at least for an extended period of time. I definitely haven't heard of any reviews though. I'd say try them out and then write a review on them!

No I ordered SS ones.

 

[SteveO000000001]

I got the bolts! There perfect! Saved a shit ton of money too...and there stronger than OEM

 

[snowborder714]

Pictures please.