Mechanical Boost Gauge Install

[Are_thirty_two]

Hi.

I have an r32 and I am in the middle of installing an el apexi mechanical boost gauge. I have followed one of the tutorials, but it fails to detail a few things. I am ready to connect the boost hose to the engine hose with a t-piece shown in the picture but....

Question is, with the boost hose 4mm big- thats parts figured out, how big do the inlets have to be which feed into the hose shown in the picture. I wanted to eliminate guess work and know which t-peice size I needed to buy before cutting.

thanks

[Craved]

what type of hose was supplied with the apexi guage?

is it the hard clear plastic? like an autometer one?

if it is the std size hose will fit over the end of it .. then cable tie it,, then plug it into the t peice... they should all use the same size hose.

[Are_thirty_two]

The apexi hose is the soft rubbery one and the t-peice, (which has all inlets 4mm big) came with the package and fits with it. However the engine hose shown in the pick is smaller. Is it safe to stretch the hose over the 4mm t-peice.

[Craved]

The apexi hose is the soft rubbery one and the t-peice, (which has all inlets 4mm big) came with the package and fits with it. However the engine hose shown in the pick is smaller. Is it safe to stretch the hose over the 4mm t-peice.

<{POST_SNAPBACK}>

if it it smaller... go to a good shop that has silicon hose... you know the fancy blue stuff ... cos that stuff is new and and will definatley stretch over the bigger T piece better than the black rubber hose.

usuall like $16 a metre .. but you wont need much

[MacGuyver]

I'm having problems with that hose at the moment in my R33. I've got an EL series Apexi mechanical boost guage as well and was also looking for options on plumbing it into this line. I've taken it off the bit where it joins on to the back of the plenum to get a look at it, and now it keeps on splitting when ever I put it back on and drive around normally for about a week or so. Time to get some new tubing me thinks.

"There's very little meat in these gym mats!"

[BHDave]

It's 3mm vacuum/boost line.

The factory one likes to split after you remove it. You can get 3-4mm tee's from supercheap. If they don't have the exact tee you need you can also get 3-4mm adapters.

[Kennedy]

There's no need to change the hose. Just but a smaller T-piece that can fit nicely onto the engine hose. Then slip the larger apexi hose onto the smaller t-piece and secure it with a zip tie. I had this problem myself as the stock hose kept on splitting on the huge Apexi supplied T-Piece. Make sure you zip tie all three t-piece connections.

[JD_R33]

I had the same issue with fitting a Speco boost guage - the hose from the guage was a larger ID than the stock hose that you cut and fit the T-piece into.

I found a T-piece at Autopro that had 1x4mm barb and 2 smaller barbs.

Fitted perfectly.