K&N filters are rock catchers not filters, they flow very well at the expense of filtering as you'd imagine you can't really have one without the other.

Look inside your intake hoses mine had a nice coat of dust which magically disappeared after fitting a proper Bosch paper filter..
The Oil on K&N almost always finds it way on to the MAF too which causes no end of issues.
I didn't notice any drop in performance or MPG without it..

15mpg is about right if it is crawling around town or doing short journeys with steep hills etc

Mine will usually do 18 around town and the best was 26mpg on the M4 at 2600rpm which is around 70mph ;)

done with a brim to brim, no trip comp nonsense, however mine is accurate to a few tenths so it can usually be trusted.. ;)

Yep, F1 engines don't have to last that long!
 
Still not figured out where the exhaust is blowing.
At this rate I'm going to have to take the manifolds off just to have a look see!!
Tried restricting the tail pipes to increase the pressure but no joy
 
Still not figured out where the exhaust is blowing.
At this rate I'm going to have to take the manifolds off just to have a look see!!
Tried restricting the tail pipes to increase the pressure but no joy

manifold gaskets
The flange where the exhaust joins the manifold
Or the exhaust itself..

To be fair my Manifolds have a very slight blow, which is quite common, whipping off the manifolds is quite an easy job once the head shields are out of the way..
 
manifold gaskets
The flange where the exhaust joins the manifold
Or the exhaust itself..

To be fair my Manifolds have a very slight blow, which is quite common, whipping off the manifolds is quite an easy job once the head shields are out of the way..
I don't have heat shields on :( and no perceptible blow at idle. I have looked everywhere for telltale soot but don't see any
 
I don't have heat shields on :( and no perceptible blow at idle. I have looked everywhere for telltale soot but don't see any
Cylinder head gasket is another possibility if it is blowing to the outside world.

Similarly it can also blow into the Valley, take the oil cap off and rev the engine, if it sounds like you have another exhaust then thats the issue ;)
 
Cylinder head gasket is another possibility if it is blowing to the outside world.

Similarly it can also blow into the Valley, take the oil cap off and rev the engine, if it sounds like you have another exhaust then thats the issue ;)
Hadn't thought about headgasket. If i had to place a bet, it does sound like it's coming from underneath so hopefully not that. I'm paranoid that touching the heads will encourage the dreaded cracked block fun, given cracks occur where the head bolts go
 
Hadn't thought about headgasket. If i had to place a bet, it does sound like it's coming from underneath so hopefully not that. I'm paranoid that touching the heads will encourage the dreaded cracked block fun, given cracks occur where the head bolts go

A set of ARP studs negate any issues with thread pulling, you'd don't need to hang off a a scaff tube to get the last 90 degrees either ;)

IIRC ARP studs are torqued to 65lb/ft and thanks to the finer thread you get a much greater degree of control, great pieces of kit.

Whenever I do a RV8 a set of studs go in.. ;)
 
A set of ARP studs negate any issues with thread pulling, you'd don't need to hang off a a scaff tube to get the last 90 degrees either ;)

IIRC ARP studs are torqued to 65lb/ft and thanks to the finer thread you get a much greater degree of control, great pieces of kit.

Whenever I do a RV8 a set of studs go in.. ;)
Need to remember this!!!
Not that i plan to do heads on this car. Ever!
 
Are you kidding £500 for a reg that doesn’t even look right
 

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I don't have heat shields on :( and no perceptible blow at idle. I have looked everywhere for telltale soot but don't see any

Can you poke a strip of bog-paper on a stick down anywhere and see where it flaps?

Ticking noise might be head gasket. Only give-away on Gorsky's. Adding uv dye to coolant and then using a uv torch on the dipstick a few days later gave the game away. V8 should be smooth and quiet.
 
Do you re-set your fuel/trip computer each time you fill up to clear the residual memory of the fuel computor?? also is that 15 mpg poodling around town or on a motorway at crusing speed say 65 ish??? Have you tried a K&N panel air filter in your air box as these do help a little or do you just drive it like you stole it hence only 15 mpg. LOL
I always re set each time I fill up for the simple reason that the sender unit is busted and don't want to pay for what really is a small light to go out. Simples, I brim the tank and know I can go 200 miles average, it is a 4.6. So drive 180 miles and brim the tank again which usually takes about 80 ltrs and as it is 100 ltr tank know I am right. However I do keep a 20 ltr top up in the back for Justin.
 
started up, gearbox fault. I'd left it overnight in neutral.. i know, i know. moved to R and got a grindy/whiny noise :eek: back to neutral quick!! D, no problem, back to R and it really thumped into gear :(
checked for faults and saw something about the selection switch value :/
 
Received my Landy Zone keyring today. LOL
I always re set each time I fill up for the simple reason that the sender unit is busted and don't want to pay for what really is a small light to go out. Simples, I brim the tank and know I can go 200 miles average, it is a 4.6. So drive 180 miles and brim the tank again which usually takes about 80 ltrs and as it is 100 ltr tank know I am right. However I do keep a 20 ltr top up in the back for Justin.
WOW i would have thought they would do more than 200 miles to a full tank!! Do you drive yours like you stole it?? LOL
 

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