[Build Thread] -- Journey to 700+ WHP [Supercharger]

[cupcakez]

Originally Posted by TopgunZ

As far as the bolts you need go, I think you posted all the info you need to order them. If you need shoulder length, I can measure some for you.

Thanks man! Yeah I was trying as much as I could to dig up information on them.

M6 x 30mm (Pitch = ???) -- Need (x7) total.

M8 x 30mm (Pitch = 1.25) -- Need (x4) total.

I am going to head to Ace Hardware tomorrow and purchase M6 x 30mm flange bolts from them in pitches 1.0, 1.25 and 1.5 just to cover all my bases.

The shoulder length someone told me via facebook group that since these bolts are reused OEM bolts from the stock block itself (aka generic bolts as he put it)...the shoulder length is of no concern since they are the same on all 'generic' bolts. I hope he's right about that.

He told me the only bolts directly from Stillen are the ones that go directly on the supercharger belt side (M10, and two M6 long ones) that is on the next page of the Stillen Manual after the Supercharger Assembly page.

If any of this information is false, please someone correct me before I go buying the wrong stuff!

[cupcakez]

As for the tires:

I was looking at these specs for front & rear.

Front: 275/30/19
Rear: 305/35/19

Both Michelin Pilot Super Sports

[Rusty]

Originally Posted by cupcakez

As for the tires:

I was looking at these specs for front & rear.

Front: 275/30/19
Rear: 305/35/19

Both Michelin Pilot Super Sports

You want
275/35-19 front
305/30-19 rear.

Otherwise your dashlights will be flashing because of the height difference. The difference is around 7.3%. What I posted is about 1.2% difference. Much better. 3% is the max difference you can go.

[cupcakez]

Originally Posted by Rusty

You want
275/35-19 front
305/30-19 rear.

Otherwise your dashlights will be flashing because of the height difference. The difference is around 7.3%. What I posted is about 1.2% difference. Much better. 3% is the max difference you can go.

Oh. Got it. Thank you for the correction bro! Saved me from more potential issues! haha. I really appreciate it =)
I will take notes of that!

["Z"en]

Originally Posted by cupcakez

As for the tires:

I was looking at these specs for front & rear.

Front: 275/30/19
Rear: 305/35/19

Both Michelin Pilot Super Sports

Why not just go PS4S? I had them installed a year ago. So far so good! Wet grip is very good, not to mention the dry grip capability!!!

[TopgunZ]

So if you reuse the OEM bolts then they would thread in 3/4 an inch less ( width of bracket). Not buying it.

[cupcakez]

Originally Posted by TopgunZ

So if you reuse the OEM bolts then they would thread in 3/4 an inch less ( width of bracket). Not buying it.

Hmm okay. Yeah I had a feeling it wouldn't be that easy of a solution to find!
Well, if you have the time for it, it would be awesome if you could share the length of the shoulder for the M6 x 30mm bolts needed for the SC bracket!

Ace Hardware says they are able to shave it down for more shoulder if needed as well, which is cool of them to offer!

[Rusty]

Originally Posted by cupcakez

Hmm okay. Yeah I had a feeling it wouldn't be that easy of a solution to find!
Well, if you have the time for it, it would be awesome if you could share the length of the shoulder for the M6 x 30mm bolts needed for the SC bracket!

Ace Hardware says they are able to shave it down for more shoulder if needed as well, which is cool of them to offer!

Try Fastenal for bolts.

How do they shave down a bolt for more shoulder. Sounds like they are just removing the threads.

[cupcakez]

Originally Posted by Rusty

Try Fastenal for bolts.

How do they shave down a bolt for more shoulder. Sounds like they are just removing the threads.

Yep. I think that's what he said they'd do lol. They were going to grind out the threads up top for more shoulder is what he said I guess it's something that Ace Hardware does??!

I actually gave Fastenal a call this morning and asked if they had the Flanged M6 x 30's / M8 x 30s and they said they had none of those...so he told me to check the website which I did.

I will probably end up buying the bolts from Ace Hardware and anything I can't find from them will be ordered through the Fastenal Website!

[Rusty]

Originally Posted by cupcakez

Yep. I think that's what he said they'd do lol. They were going to grind out the threads up top for more shoulder is what he said I guess it's something that Ace Hardware does??!

I actually gave Fastenal a call this morning and asked if they had the Flanged M6 x 30's / M8 x 30s and they said they had none of those...so he told me to check the website which I did.

I will probably end up buying the bolts from Ace Hardware and anything I can't find from them will be ordered through the Fastenal Website!

If they ground down the threads. IT'S NOT a shoulder bolt. The shoulder of the bolt is the same diameter as the threads. If they ground down the threads. It will be under sized. Bad idea! It's not a shoulder bolt. It's just a bolt with some threads removed. Any clown can do that.

Different images of shoulder bolts. The shoulder is the same diameter or larger then what the thread diameter is.

https://www.google.com/search?q=shou...w=1280&bih=578

[cupcakez]

Out of these options for the Front / Rear tires, which ones would you recommend I get?
I see there is XL and non-XL ones for both options.

Originally Posted by "Z"en

Why not just go PS4S. I had them installed a year ago. So far so good! Wet grip is very good, not to mention the dry grip capability!!!

Because i did not know about that either. I'm really new to tire brands and all that if you can't already tell! haha.
PS4S? Okay let me look that up.

Nvm I just realized PS4S is Pilot Super lol. Oops xD

Here this is what I found.

[Rusty]

Originally Posted by cupcakez

Out of these options for the Front / Rear tires, which ones would you recommend I get?
I see there is XL and non-XL ones for both options.



Because i did not know about that either. I'm really new to tire brands and all that if you can't already tell! haha.
PS4S? Okay let me look that up.

Nvm I just realized PS4S is Pilot Super lol. Oops xD

Here this is what I found.

The PS4S is a good tire. I have them on my front.

[cupcakez]

Originally Posted by Rusty

The PS4S is a good tire. I have them on my front.

So do I go for the XL or not XL or it doesn't matter?

[Rusty]

Originally Posted by cupcakez

So do I go for the XL or not XL or it doesn't matter?

I'm only seeing the the XL in the 275/35-19 PS4S size.

[cupcakez]

Originally Posted by Rusty

I'm only seeing the the XL in the 275/35-19 PS4S size.

Mmh it seems that the PS4S are all XL -- at least the ones I seen for the sizes you recommended!
Okay cool. No worries then, I was just trippin a bit.