That old twin plenum devil...

[wedg1e]

Worth doing on an NCK 3.9? Albeit now a 3948cc... and if so, what to pay for the full TP setup? £250? £500? £1000?

Answers on a bankers' draft...

[GreenV8S]

One went for about £1500 on ebay last year, which seems silly money to me. I know they're rare, but there's not *that* much to them.

[wedg1e]

GreenV8S said:

One went for about £1500 on ebay last year, which seems silly money to me. I know they're rare, but there's not *that* much to them.

[planman350i]

Save yourself about £1500 and weld two scrap plenums togther!!!!!:

www.mgcars.org.uk/v8_conversions/files/engine/fuel_injection.html

[350matt]

Far better off fitting ACT's stuff, the most effective mod is the larger & shorter trumpet base. Alternativly you try just cutting down the existing trumpets by 25mm

Matt

[wedg1e]

There'a a full TP system on Ebay, ending tonight. Start bid is £500 but no takers yet.
I did read somewhere that Rover created a special cam profile for the twin plenum Vitesse that can't be had for love or money....

[kevinday]

Take a look at this ACT page, second item down should suit you sir!

www.actproducts.co.uk/multithrottle.php

If you do buy perhaps I should claim a commission

[wedg1e]

kevinday said:

Take a look at this ACT page, second item down should suit you sir! www.actproducts.co.uk/multithrottle.php If you do buy perhaps I should claim a commission

Nice! But I was hoping for improvements on the (relative) cheap...

[FrenchTVR]

Eek, would agree that is quite pricey.

I may try Matt's modification to the trumpets while I have mine in bits. Do you lose any torque etc or does it just allow the engine to breathe more freely?

[350matt]

see
www.pistonheads.com/gassing/topic.asp?t=157392&f=12&h=0

[wedg1e]

Hmmm. The system on Ebay failed to attract any bids (start bid was £500, mind) so I emailed the seller with an offer.
I'm not holding my breath... even though his description failed to mention whether he even knew if it worked, also there are obviously a few bits missing etc etc... hell of a chance at half a K.

[chunder]

planman350i said:

Save yourself about £1500 and weld two scrap plenums togther!!!!!: www.mgcars.org.uk/v8_conversions/files/engine/fuel_injection.html

Have seen this done also but welded so that both inlets are on the same side - with a y piece you can then re-use existing AFM and filter set up (although this particular 400rwhp 5 litre SD1 used a Haltech with a MAP sensor). Not too difficult to make a custom link between the butterfly's and away you go for much less than the money being asked for the genuine items.

[broadside]

Wedg1e,

How you doin' ?

Have a look at the DJE Rover V8 Website, there is a piccy of a twin inlet plenum on their induction components page. Could be worth giving them a ring ?

Hope this helps.

Any meetings coming up soon ?

Regards

Nige'

[wedg1e]

broadside said:

Wedg1e, How you doin' ? Have a look at the DJE Rover V8 Website, there is a piccy of a twin inlet plenum on their induction components page. Could be worth giving them a ring ? Hope this helps. Any meetings coming up soon ? Regards Nige'

Hi Nige: there is a get-together tonight at Shafto's (see NE regional list) but I don't think many are going. Next up is the Cobweb run on March 6th...

[broadside]

Wedg1e,

Oops missed the meet last night and I will miss the cobweb run too as I am already prebooked on a family shindig. Damn the relatives !!!

Will try for next meet, but the 450 is having some work done on her next month, so we will see.

Regards

Nige'