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renrut

Original Poster:

1,340 posts

89 months

[news] 
Friday 4th March 2011 quote quote all
Wanting to pick the brains of the PH massive. I'm looking for info on what Noble change on their V6s to get the extra power out and keep them reliable under forced induction compared to the common or garden Ford / Jaguar / Mazda V6?

I'm aware they add on 2 turbos (GT28s?) but beyond that finding concrete information is difficult. Some say they've got forged pistons to drop compression, some say its different rods, some say nothing. Its all just hearsay and I'd like to cut through all that and get some solid answers.

Hopefully someone on here will have the answers, and ideally a shopping list biggrin

The devil

2,006 posts

67 months

[news] 
Friday 4th March 2011 quote quote all
Majority of the turbos are t25

Blu3R

1,765 posts

83 months

[news] 
Friday 4th March 2011 quote quote all
They have shorter rods.

renrut

Original Poster:

1,340 posts

89 months

[news] 
Friday 4th March 2011 quote quote all
T25s and shorter rods? A lot less than I was expecting. Anyone have the specific turbo P/Ns, I assume Garrett ones?

Adrian W

9,252 posts

112 months

[news] 
Friday 4th March 2011 quote quote all
What car are looking to put this engine in?
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TuxMan

8,143 posts

122 months

[news] 
Friday 4th March 2011 quote quote all
There is a bit more than suggested , STD turbos are T25 or T28 both supplied by Universal turbos , Noble also fit a larger capacity sump and there are oil squierters machined in to the block to cool piston crowns , as suggested the con rods are shorted although STD cast pistons are kept . Also machined into the head are oil supply feeds for the turbo's . Tux

mgbond

6,171 posts

116 months

[news] 
Friday 4th March 2011 quote quote all
TuxMan said:
There is a bit more than suggested , STD turbos are T25 or T28 both supplied by Universal turbos , Noble also fit a larger capacity sump and there are oil squierters machined in to the block to cool piston crowns , as suggested the con rods are shorted although STD cast pistons are kept . Also machined into the head are oil supply feeds for the turbo's . Tux
Don't forget that the rods are also aroow rods and that the bolts used are ARP 2000.

Bondy

Boosted LS1

13,613 posts

144 months

[news] 
Friday 4th March 2011 quote quote all
So, did they lower compression by using a shorter rod whilst keeping the stock piston? Surely not.

renrut

Original Poster:

1,340 posts

89 months

[news] 
Friday 4th March 2011 quote quote all
Adrian W said:
What car are looking to put this engine in?
Well I've got an S-type with the AJ-V6 in it already and although I love the car, a little bit more power is always nice. So I was wondering what the damage would be to get a more powerful version of the engine built up then dropped in. As Noble have already done the leg work it would be rude not to pay attention.

mgbond said:
TuxMan said:
There is a bit more than suggested , STD turbos are T25 or T28 both supplied by Universal turbos , Noble also fit a larger capacity sump and there are oil squierters machined in to the block to cool piston crowns , as suggested the con rods are shorted although STD cast pistons are kept . Also machined into the head are oil supply feeds for the turbo's . Tux
Don't forget that the rods are also aroow rods and that the bolts used are ARP 2000.

Bondy
Thanks for that. Sounds like its a bit more intensive than just some shorter rods and a couple of turbos then what with machining work on the head and block.

TuxMan

8,143 posts

122 months

[news] 
Friday 4th March 2011 quote quote all
Boosted LS1 said:
So, did they lower compression by using a shorter rod whilst keeping the stock piston? Surely not.
Yep mate that's exactly what they did !!!

Adrian W

9,252 posts

112 months

[news] 
Friday 4th March 2011 quote quote all
renrut said:
Adrian W said:
What car are looking to put this engine in?
Well I've got an S-type with the AJ-V6 in it already and although I love the car, a little bit more power is always nice. So I was wondering what the damage would be to get a more powerful version of the engine built up then dropped in. As Noble have already done the leg work it would be rude not to pay attention.

mgbond said:
TuxMan said:
There is a bit more than suggested , STD turbos are T25 or T28 both supplied by Universal turbos , Noble also fit a larger capacity sump and there are oil squierters machined in to the block to cool piston crowns , as suggested the con rods are shorted although STD cast pistons are kept . Also machined into the head are oil supply feeds for the turbo's . Tux
Don't forget that the rods are also aroow rods and that the bolts used are ARP 2000.

Bondy
Thanks for that. Sounds like its a bit more intensive than just some shorter rods and a couple of turbos then what with machining work on the head and block.
The reason i asked was that the exhaust syatem will cost lots, you may be able to reduce the cost by using Noble manifolds, however you may find that you dont have enough space, the turbo's on the Noble are fairly close to the exhaust ports.

Boosted LS1

13,613 posts

144 months

[news] 
Friday 4th March 2011 quote quote all
TuxMan said:
Yep mate that's exactly what they did !!!
Oh dear, lol.

chuntington101

4,693 posts

120 months

[news] 
Friday 4th March 2011 quote quote all
It might be worth looking into a Rotex style supercharger also. THese are very small and could potencial be fitted to the front of the engine, or the side. Might make install a little easier.

there is a company call TTS that have kits for the Honda S2000 and Civics, maybe something could be built for the jag.

Chris.

Mike Tuckwood

1,261 posts

83 months

[news] 
Friday 4th March 2011 quote quote all
Boosted LS1 said:
Oh dear, lol.
Scarey huh! :-o

key750

162 posts

60 months

[news] 
Friday 4th March 2011 quote quote all
But cammes and timming are the same?

paulcundy

1,886 posts

149 months

[news] 
Friday 4th March 2011 quote quote all


"you may be able to reduce the cost by using Noble manifolds"

oh yes that will be because they last so long.....(needs a smiley here)

Regards
Paul C

TuxMan

8,143 posts

122 months

[news] 
Friday 4th March 2011 quote quote all
I thought the Jag engine had VVT , so I do wonder if the manifolds will fit ???

andygtt

7,385 posts

148 months

[news] 
Friday 4th March 2011 quote quote all
Boosted LS1 said:
TuxMan said:
Yep mate that's exactly what they did !!!
Oh dear, lol.
supports up to 500bhp like that tho so whilst surprising it wasn't exactly a bodge

andygtt

7,385 posts

148 months

[news] 
Friday 4th March 2011 quote quote all
TuxMan said:
I thought the Jag engine had VVT , so I do wonder if the manifolds will fit ???
yes they do smile

dont think for one moment that they would be an easy fit on our car, believe me I have considered it hard... but with mine reving to nearly 8k Im just not sure I need the extra revs of the Jag head.

renrut

Original Poster:

1,340 posts

89 months

[news] 
Friday 4th March 2011 quote quote all
Adrian W said:
The reason i asked was that the exhaust syatem will cost lots, you may be able to reduce the cost by using Noble manifolds, however you may find that you dont have enough space, the turbo's on the Noble are fairly close to the exhaust ports.
They put a V6 twin turbo diesel in there so there should be space for some turbos and pipework. But it depends on how big the turbos are I suppose. I'd imagine the ones on the diesel are pretty tiny being only just over 200bhp between 2 of them.

A Rotrex was the first thing I looked at but stopped because the front of the engine is pretty cluttered already. Maybe worth a second look. If I changed over to electric PAS (no idea how difficult that is) then I could lose the PAS pump and have a nice location for it and it would be neatly tucked out of sight too.
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