Plenum insulation gasket and plenum spacer

[PH430]

This weekend i will mount my plenum spacer and insulation gasket on my Chim.
Next week there will be a dynorun.

Can anyone tell me, do i place some loctite between the inletmanifold, gasket and plenumbase?

Cheers,
Pieter

[SILICONEKID343HP]

Plenum spacer is a total waste of time but the insulator gasket is worth a punt .

[Mr Haribo]

There is no need for any sealant between the inlet manifold and the plenum the gasket is the seal
It makes a better job than the sealant !

[PH430]

Mr Haribo said:

There is no need for any sealant between the inlet manifold and the plenum the gasket is the seal
It makes a better job than the sealant !

Thanks, i am curious there will be an improvement.

[PH430]

SILICONEKID343HP said:

Plenum spacer is a total waste of time but the insulator gasket is worth a punt .

Why is the spacer a waste of time? There are a couple of Chims they run better on it.

[Sardonicus]

Use grease or Vaseline on the thermal insulator mating faces so that if you have to separate the trumpet base from the inlet manifold in future the gasket does not de-laminate as you separate the joint ask me how I know

[PH430]

Sardonicus said:

Use grease or Vaseline on the thermal insulator mating faces so that if you have to separate the trumpet base from the inlet manifold in future the gasket does not de-laminate as you separate the joint ask me how I know

Thats a good one, i will do that. Thanks for the advice.

Cheers

[SILICONEKID343HP]

PH430 said:

Why is the spacer a waste of time? There are a couple of Chims they run better on it.

The spacer makes it run worse ,so many have been thrown in the bin .

[Sardonicus]

SILICONEKID343HP said:

The spacer makes it run worse ,so many have been thrown in the bin .

Didnt make mine run worse been fitted for the last 4 years both Lucas & MS did some other mods at the same time so cant vouch for it giving another 20hp though

[PH430]

SILICONEKID343HP said:

The spacer makes it run worse ,so many have been thrown in the bin .

My Chim is running lean at the moment and is shutting in the revs till 2300 rpm. On the forum there are Some Chims are fittings of a spacer that disapaer the shutting.

[PH430]

Sardonicus said:

idnt make mine run worse been fitted for the last 4 years both Lucas & MS did some other mods at the same time so cant vouch for it giving another 20hp though

What kind of mods did you make?

[jojackson4]

What size are you going for 10mm?

[PH430]

jojackson4 said:

What size are you going for 10mm?

I ordered the sc power spacer. Are there different sizes?

[jojackson4]

I think it to get your plenum to the same cc as your engine
The plenum is sized for the 3.5l
And have read that a 450 needs 10mm
What's 200cc between friends

[PH430]

jojackson4 said:

I think it to get your plenum to the same cc as your engine
The plenum is sized for the 3.5l
And have read that a 450 needs 10mm
What's 200cc between friends

My Chim is a 430. I think the spacer is 10mm
Most Chims 430 on the forum with a spacer did work out to have a better running engine.

[jojackson4]

Good let us know it's 1 thing I am doing + trumpet base and flared trumpets (ATC)

[PH430]

jojackson4 said:

Good let us know it's 1 thing I am doing + trumpet base and flared trumpets (ATC)

What is the enige you have?

Maybe next year i will mount a 45mm manifold with 45mm plenumbase with ACT Carbon trumpets.

[jojackson4]

500

[PH430]

jojackson4 said:

Good let us know it's 1 thing I am doing + trumpet base and flared trumpets (ATC)

I will do let you know

[macdeb]

SILICONEKID343HP said:

Plenum spacer is a total waste of time but the insulator gasket is worth a punt .

I'm with Daz here. I tried one, went for a drive, came home, took it off and threw in the bin. Made my car drive worse not better. As some of the more informed have said before the extra available air is the wrong side of the throttle. Placebo is a word to remember, some on here reckon that just the fitting of a smooth bore elbow 'transforms' the car

Edited by macdeb on Saturday 26th October 17:34