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RB25 intake manifold suit RB30 head.

Started by HTURBO · 20 Sept 2012 · 14 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts.

HTURBOArchived member

21-09-12, 01:00 GMT+10#1

Would a RB25 intake manifold suit a RB30 head? Are the bolt pattern's the same? Thinking about changing plenums & have found a good RB25 plenum.

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THOMAArchived member

21-09-12, 21:48 GMT+10#2

No the bolt pattern is different.

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HTURBOArchived member

22-09-12, 02:58 GMT+10#3

Doh. I wonder if you can buy the intake plate. Cut off the RB25 plate off the intake plenum & weld up a RB30 plate

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PSI086Archived member

23-09-12, 14:52 GMT+10#4

Are the port spacings the same though?

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HTURBOArchived member

23-09-12, 15:33 GMT+10#5

Quote: Originally Posted by PSI086 [View Post] Are the port spacings the same though? Good point. Don't know. Some original photos have not been recovered yet.

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ISL33PArchived member

23-09-12, 19:50 GMT+10#6

why would you go to all the hassle and use a rb25 plenum? the rb25 runner size is 12-16mm larger in diameter and would be a pain in the a$$ (read expensive/waste of time)

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HTURBOArchived member

23-09-12, 21:21 GMT+10#7

Just looking for a no holes plenum.

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ISL33PArchived member

23-09-12, 21:51 GMT+10#8

how much are you looking to spend?

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HTURBOArchived member

23-09-12, 23:03 GMT+10#9

Quote: Originally Posted by ISL33P [View Post] how much are you looking to spend? around a grand

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ISL33PArchived member

24-09-12, 08:16 GMT+10#10

I have seen "no hole" piping made to fit one of my street version plenums

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-pumba-Archived member

24-09-12, 20:23 GMT+10#11

ive seen no holes piping used on a rajab plenum

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ISL33PArchived member

24-09-12, 21:07 GMT+10#12

I've seen Rajab's plenum on a flowbench Some original photos have not been recovered yet.

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madrexArchived member

05-10-12, 15:51 GMT+10#13

Quote: Originally Posted by ISL33P [View Post] I've seen Rajab's plenum on a flowbench And?????? Some original photos have not been recovered yet.

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WHTVLTArchived member

06-10-12, 00:06 GMT+10#14

Sorta off topic and on subject! Has any one got a no holes Jpc?

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-pumba-Archived member

06-10-12, 00:10 GMT+10#15

Quote: Originally Posted by ISL33P [View Post] I've seen Rajab's plenum on a flowbench the point i was making is u can use any ffp with no holes piping, just have to make the piping to suit. Some original photos have not been recovered yet.

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RB25 intake manifold suit RB30 head.

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