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Author Topic: 3.0 inlet onto a 2.5???  (Read 1224 times)

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Don9247

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3.0 inlet onto a 2.5???
« on: 03 October 2007, 21:12:32 »
will putting a 3.0 plennum onto a 2.5 help in any way and does it even fit?
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TheBoy

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Re: 3.0 inlet onto a 2.5???
« Reply #1 on: 03 October 2007, 21:17:18 »
Quote
will putting a 3.0 plennum onto a 2.5 help in any way and does it even fit?
pre 98 ones are the same anyway, so will fit.

The 3.0l had a longer plenum to tune it better to engine, 2.5 is nicely tuned anyway.
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Don9247

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Re: 3.0 inlet onto a 2.5???
« Reply #2 on: 03 October 2007, 21:20:18 »
ok no i just wondered because there is one on ebay and i wondered if it would make any difference in performance.
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ffcgary1

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Re: 3.0 inlet onto a 2.5???
« Reply #3 on: 03 October 2007, 21:21:56 »
Changing the plenium will make no difference to the tune of your 2.5 at all, as they are the same part. to make a diff you need to put 3.0 cams in and add a 4 bar fuel pressure regulator and all new seals.

 just done the upgrade myself, big difference. :y
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Elite leather, cruise control, 3.0ltr cams, gas flowed 3.0ltr inlet manifold, 4 bar fuel pressure regulator, rear side window demisters, rear electric windows. projectors /HID'S, h/l washers.
Jaguar XJ6

TheBoy

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Re: 3.0 inlet onto a 2.5???
« Reply #4 on: 03 October 2007, 21:22:30 »
Quote
ok no i just wondered because there is one on ebay and i wondered if it would make any difference in performance.
doubtful - when they put the bigger one on the 3.0l to improve it, they didn't revise performance figures...
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Don9247

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Re: 3.0 inlet onto a 2.5???
« Reply #5 on: 03 October 2007, 21:27:51 »
ok cool where di you get your cams and fuel regualtor from, easy job to do wouldnt take to long. have you had yours chipped yet did it help? I see there may be a meet in about 6 weeks chip + dyno £190. anything else not to big i can do, i was thinking about the eram but after reading in other forums they dont reckon they work that well. is that what u guys reckon also.
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ffcgary1

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Re: 3.0 inlet onto a 2.5???
« Reply #6 on: 03 October 2007, 21:47:03 »
 I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.
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Elite leather, cruise control, 3.0ltr cams, gas flowed 3.0ltr inlet manifold, 4 bar fuel pressure regulator, rear side window demisters, rear electric windows. projectors /HID'S, h/l washers.
Jaguar XJ6

Martin_1962

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Re: 3.0 inlet onto a 2.5???
« Reply #7 on: 03 October 2007, 22:02:12 »
Quote
I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.

What about a Y26SE?
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TheBoy

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Re: 3.0 inlet onto a 2.5???
« Reply #8 on: 03 October 2007, 22:05:59 »
Quote
Quote
I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.

What about a Y26SE?
Sell it, get a proper one  :P
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TheBoy

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Re: 3.0 inlet onto a 2.5???
« Reply #9 on: 03 October 2007, 22:06:35 »
Quote
I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.
All Omegas should be x25xe...
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The Cambelt Kid

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Re: 3.0 inlet onto a 2.5???
« Reply #10 on: 03 October 2007, 22:08:16 »
Quote
Quote
I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.

What about a Y26SE?

Yeah - What about the Y26SE?

(Martin, do i have one of those?  i trust it's the same engine as yours...)

It'd be nice if 3.2 cams would have a simular effect of a 2.6!
« Last Edit: 03 October 2007, 22:08:38 by Omega2000w »
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ffcgary1

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Re: 3.0 inlet onto a 2.5???
« Reply #11 on: 03 October 2007, 22:14:15 »
 I have seen some omegas fitted with c25xe engines , but prob only after a failure of the original motor. To all intense and puposes they are the same motor just ancillies were changed, and some say that they were faster, but dont ask me how. :-/
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Elite leather, cruise control, 3.0ltr cams, gas flowed 3.0ltr inlet manifold, 4 bar fuel pressure regulator, rear side window demisters, rear electric windows. projectors /HID'S, h/l washers.
Jaguar XJ6

TheBoy

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Re: 3.0 inlet onto a 2.5???
« Reply #12 on: 03 October 2007, 22:23:41 »
Quote
I have seen some omegas fitted with c25xe engines , but prob only after a failure of the original motor. To all intense and puposes they are the same motor just ancillies were changed, and some say that they were faster, but dont ask me how. :-/
Must be a recon from a cav or veccy  :-/
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Martin_1962

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Re: 3.0 inlet onto a 2.5???
« Reply #13 on: 04 October 2007, 10:40:41 »
Quote
Quote
Quote
I bought a 3.0 to break for the cams and the fuel pressure regulator i got from ebay.

 Total cost including the car and all the seals and gaskets was about £400.

 Cams on avg go for about £100.
if you have an x25xe engine then you need  inlet and ex cams.
if you have an c25xe engine then you only need the inlet cams.

What about a Y26SE?

Yeah - What about the Y26SE?

(Martin, do i have one of those?  i trust it's the same engine as yours...)

It'd be nice if 3.2 cams would have a simular effect of a 2.6!

yes you do
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