master cylinder firewall hole size? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

soberjoeS13 · 05-16-2007, 01:40 AM

hey does anyone know what type of bit to use and the size they used? thanks

drift freaq · 05-16-2007, 01:54 AM

before someone flames you hard I am gonna suggest you do a search for this. In fact you might even think about looking at the firewall as the hole outline is there. Then go to your local hardware store and ask them for something that will drill that size. But yes if you do a search there is a very good auto to 5 speed swap faq.

5t341tH · 05-16-2007, 03:05 AM

from memory, it was 2 and 1/4 inches
not too sure about that, i could look into it for u

Edgar · 05-16-2007, 07:39 AM

Quote:

Originally Posted by 5t341tH

from memory, it was 2 and 1/4 inches
not too sure about that, i could look into it for u

I think you are right. I was just messing with this last week. This sounds about right.

Jung918 · 05-16-2007, 08:40 AM

Just find a step drill bit and call it a day.

jr_ss · 05-16-2007, 04:15 PM

This is all readily available information at NICO. Do some searching.

I'm getting ready to do my swap and in taking some conversion steps early I found that when drilling the hole for the MC, a perfect size to use is 1 3/8th's hole saw. It's slightly larger (about 1/32nd larger) than the protrusion on the rear of the MC. This size will allow the rubber to be pinched inbetween the bulk head creating a "waterproof" seal, not that any water would get there but, it'll also help with the road/engine noise in the cabin. I would imagine that the S13 MC would be similar to/if not identical to the S14 and use the same size hole saw, but do not hold me to that as I do not have an S13...

05-16-2007, 01:40 AM	#1
soberjoeS13 Leaky Injector Join Date: Nov 2006 Location: Mesa Az Age: 36 Posts: 118 Trader Rating: (0) Feedback Score: 0 reviews	master cylinder firewall hole size? hey does anyone know what type of bit to use and the size they used? thanks

05-16-2007, 01:54 AM	#2
drift freaq R.I.P. Aya, always love Join Date: Nov 2001 Location: Los Feliz/Hollywood Posts: 18,564 Trader Rating: (215) Rides Gallery: drift freaq Feedback Score: 215 reviews	before someone flames you hard I am gonna suggest you do a search for this. In fact you might even think about looking at the firewall as the hole outline is there. Then go to your local hardware store and ask them for something that will drill that size. But yes if you do a search there is a very good auto to 5 speed swap faq. __________________ "Having a lot of tracks on a song is like putting stickers on a car to get more horsepower" New Video https://www.youtube.com/watch?v=uebV1OnbRsw Buy my mounts! http://zilvia.net/f/sale-items/51531...ns-mounts.html http://zilvia.net/f/tech-talk/317539...e-mouts-6.html

05-16-2007, 03:05 AM	#3
5t341tH Post Whore! Join Date: Jun 2006 Location: socal (Huntington Beach) Age: 36 Posts: 2,787 Trader Rating: (14) Feedback Score: 14 reviews	from memory, it was 2 and 1/4 inches not too sure about that, i could look into it for u __________________ lexus baby

05-16-2007, 08:40 AM	#5
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	Just find a step drill bit and call it a day. __________________ Sale: Hello Kitty Horn Button S14 Rear Valences K.Y. Gordon the Thief (Tony Chen)

05-16-2007, 04:15 PM	#6
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,415 Trader Rating: (35) Feedback Score: 35 reviews	This is all readily available information at NICO. Do some searching. I'm getting ready to do my swap and in taking some conversion steps early I found that when drilling the hole for the MC, a perfect size to use is 1 3/8th's hole saw. It's slightly larger (about 1/32nd larger) than the protrusion on the rear of the MC. This size will allow the rubber to be pinched inbetween the bulk head creating a "waterproof" seal, not that any water would get there but, it'll also help with the road/engine noise in the cabin. I would imagine that the S13 MC would be similar to/if not identical to the S14 and use the same size hole saw, but do not hold me to that as I do not have an S13... __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me.