Z300swb?

[WorldClassAccident]

Hmm... possibly not my best purchase then. We will see.

[y cymro]

Originally Posted by Danny_HUFC

When i was 18 my dad bought me a nice e46 3 series, and because i knew best, I put a k&n filter on and the spray suff you get in a can with it fucked up my air flow meter and cost me about £300 for a new 1!

You over-oiled it which caused your problem. You only need to re-oil after cleaning the filter. This is clearly explained in the instructions. We all know best when we're 18

[y cymro]

Originally Posted by WorldClassAccident

Hmm... possibly not my best purchase then. We will see.

There's nothing wrong with the filter. K&N is a good choice. It is oiled during production so doesn't need any more to be added. Over-oiling is why people suffer problems. The pre-install I suggest is to ensure you don't suffer similarly, though I've not done that with the K&Ns I've installed and not had a problem.

[WorldClassAccident]

Well it is going on regardless. I think your idea of a blast clean with the MAF removed is sensible though.

My first attempt at a timed run wasn't totally successful

https://youtu.be/uDkZK7nsTDg

[WorldClassAccident]

I found a longer private road and did three runs from rolling up to 80mph and each run was within 0.1 seconds of each other for each of the splits.

This is the benchmark video against which the air filter 'improvements' will be measured.

https://youtu.be/FLirNQ-R2lk

[y cymro]

Your times are unusually repeatable, and your gearbox is far more consistent than I am at changing gears. I notice a flat spot at around 77mph that isn't noticeable in the lower gears. Could you capture the Rev counter next time too.
Well done, look forward to the 'after'. Adding the CAI will give most improvement.
Your car sounds good by the way.

[WorldClassAccident]

I did try to get the speedo and rev counter. A bit of a challenge when accelerating flat out down a single track lane holding the steering wheel with one hand and a camera phone with the other and a big brick barn approaching really quickly!!!!

:-)

I might clean the MAF and see if that makes any difference. I guess it must be pretty dirty after 100,000 miles and 15 years. Might make a difference but if it doesn't I won't bother posting the results.

i am looking forward to the 'With cone filter' and 'With the cone filter and cold air flowerpot' results. If the two Aussie guys on the earlier link are to be believed then the cone filter alone with either do nothing or actually reduce power (but sound great) but the cold air flowerpot should have a noticeable benefit. Well a purpose built kit for a Honda S2000 improved his power.

[y cymro]

Originally Posted by WorldClassAccident

I did try to get the speedo and rev counter. A bit of a challenge when accelerating flat out down a single track lane holding the steering wheel with one hand and a camera phone with the other and a big brick barn approaching really quickly!!!!

Then you've done really well

Originally Posted by WorldClassAccident

i am looking forward to the 'With cone filter' and 'With the cone filter and cold air flowerpot' results. If the two Aussie guys on the earlier link are to be believed then the cone filter alone with either do nothing or actually reduce power (but sound great) but the cold air flowerpot should have a noticeable benefit. Well a purpose built kit for a Honda S2000 improved his power.

If you take the top off the OEM filter assembly you'll notice that the air is forced through a couple of 90 degree bends which doesn't help air flow. Also, on the standard Z3, the cold air feed is a small area and again forced through tight curves before being squeezed behind the headlamp and entering the air box. All of this is inefficient and changing airflow to a straighter line will help power and driveability. For this to work, plenty of cold air, and insulation of engine bay heat are musts. Replacing the air box with a cone filter removes obstructions and provides a larger filtering surface. Your K&N filter will flow air at least as well as a brand new OEM filter, and should not suffer obstruction as quickly as the OEM will over time. The Z300 front design should allow you to guide cold air towards the filter in a straighter route than standard towards the flowerpot, which will channel the air to the filter and also protect the intake from engine bay heat. Having said all that, my aim was to introduce a hairy induction note without losing anything else.
Providing warm air will spoil power whatever filter system you use. I remember on my first car the option to direct the air intake straight to the exhaust manifold
in cold weather which quaranteed to remove some of the meagre 48bhp it started with.

[WorldClassAccident]

Still waiting on the new air filter kit. Grrr. The only thing I had heard from them is the standard email when I placed the order "Thank you for choosing Welcome to ModWorld - the online home of car mods. We want to let you know that your order has been received and will be processed as soon as possible" No phone number and no reply to emails. Not happy. Their registered head office is in Southampton so I might wander down with a persuading stick.

Anyway, decided to clean my MAF while I was waiting.

1) Get some cleaner and locate the MAF. It is the square thing with the wire coming out the right side.


2) Notice which way round it is fitted. Arrow reflecting the direction of air flow towards the engine .


3) Unclip the air box and undo the big jubilee clip clamping the hose at the other side


Remove the section with the MAF not forgetting to twist and release the cable


Look inside but don't touch. There is the clever bit that you need to keep clean


You can clean this side too but don't blow the dirt onto the element behind


Lots of cleaner. Don't use WD40 or Carb Cleaner. This stuff leaves no residue and is specifically for cleaning electronic stuff. I still had the sensor upside down so any dirt dripped off it rather than gathering around the base


After doing that there was absolutely no visible difference at all. It did smell nicer though. I left it to dry and then refitted it. A very easy 5 minute task. I shall now go for a drive and see if the car feels any different (or just smells nicer)

[Tribute Automotive]

Originally Posted by WorldClassAccident

Masybe someone with photoshop skills could to better but here is a start


The bonnet will be cut and changed a bit to fit the standard standard door skins and the little side wings on the Z300S.

Then when I feel like Ferrari Friday I undo the bonnet hinges and swap the fronts.

Maserati Monday and it is just swap them over again.

What could possibly go wrong?

[WorldClassAccident]

Loving the two tone.

getting a bit too excited about getting the end result. Tidied some of the garage and fitted some shelves. Hopefully I will clear enough room to actually be able to work on the bonnet when it arrives.

[WorldClassAccident]

Bonnet arrives tomorrow. Yay!

[Roadster]

looking forward to seeing the new hybrid

[Roadster]

Has it arrived yet Nick?
Im hoping for at least pics but maybe its worthy a video.

[WorldClassAccident]

[IanA]

Did Dan carry it like that all the way from Dorset?

[Mitchelkitman]

Well.... he probably stopped for a coffee break on the way

[WorldClassAccident]

Planning a holder to hang whichever bonnet isn't on the car. Bonnet hinges bolted to the top and bonnet dangles down. Locking castors on the base to let me wheel it around easily.

[Paul L]

WCA - Looking forward to seeing the new bonnet in place.

Good luck, Paul.

[WorldClassAccident]

Made some progress on the bonnet carrier

This is the Z300S bonnet on the car


There is a pile of wood and a chop saw


And there is the partially finished holder glued and screwed ready for the cross members to be fitted tomorrow


Not forgetting the locking casters so I can wheel it around the garage