Jump to content
SAU Community

Recommended Posts

After thinking about moding my Plenum to the end of the plenum, i found out it was abit hard to do on a r32/RB20DET plenum as the ends/diameter to make a hole to fit the throttle body aint that big compaired to a rb25det one which can & has been done.

You want the WHOLE piping in silicon? or just joints?

why not just do it in alloy or something?

It is not very hard to relocate the throttle body on the 32's, i was going to do it on mine and got a second plenum which i cut up and was going to weld the pipe to but i decided against it. The air has to enter and turn hard left to reach the first cylinder, this means there will be big differnces in the air recieved at each runner. You realy need to make a complete new plenum if you want short pipes and i was going to do this but it got all to hard.

However if you want a 32 plenum with the throttle body moved i will sell you the one i modifies for a good price.

hey i was wondering...how much are the plenums that go straight to the front of the engine instead of going across the top?

how much, where from, and is it worth it? im wanting a cooler soon, so i was thinking of changing the plenum first...if it was worth the trouble?

do people sell them second hand, if so, how much and again, where from...here?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • https://www.facebook.com/share/p/18rmVb1SKB/ 
    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...