BreakMyWindow

Glad your cyber ego hasn’t deflated too much. Pen is in the mail... ?

Deep Breaths Dave... No we’re sharing our experiences on experimenting with iat’s and how that has affected engine performance. That article you’re harping on about does make sense but I don’t think it’s entirely true and as mentioned several times, a measurement tool i.e a dyno would definitely confirm what effect iat’s has on the m54’s engine performance.

What colour Bimmersport pen would you prefer?

Something tells me you’ve got a box full of them.

Is all the suspension original?

Yeah engine under tray off and a pressure test. Can you smell any coolant while driving?

Exploding pistons as a result of shitty aftermarket tuning?

Bumpity bump

Well to anyone that thought TL;DR for this, Dave found comfort in a paragraph he found on the internet. He also accepts himself.

I found this on the MS43. I think really the only way is to do some data logging or dyno testing to see what effect the iat has on fuelling, timing, engine power.

Making stuff up? I’m sharing the results from my experimenting on a dyno with s62 iat’s and made the assumption that iat’s can influence fueling on the m54 as well, but perhaps not the case with the ms43. (M54 engines).

I'd like to donate to the cause, I've got a set of facelift corner tail lights I'll give to you next coffee meeting @aja540i

I think you’ll find there’s a difference with the iat disconnected, certainly on a dyno measuring afr’s. This is absolutely the case with the ms52 dme programming and suspect also true for ms43 dme’s too.

I dunno the evo in those clips couldn’t seem to pass the 130 on the initial straight. Off the mark might be a different story though. Looked like the evo needed some Tweaks. Loads of understeer.

Let the fun begin!

I'd imagine Gull force 10 would have an impact on combustion temperatures rather than the fresh air being drawn in. IAT's or "sucked air temperature" is the temperature of the air being drawn in to the intake manifold before it gets used to combust. If IAT's are cooler then the dme adjusts the fueling and timing accordingly which results in more efficiency, more power and torque. It is the MAF which calculates how much air volume is being drawn in to the cylinders. A few years back I ran an experiment on a dyno by putting one of the M5's maf's (that is used also to measure IAT's as it has an integrated sensor) in the fridge for 10 mins in between dyno runs. The result was about 10rwkw's more peak with IAT slightly over ambient vs about 30deg C over ambient on the first run.

I think IAT and KTMP have an influence on spark ignition timing. If the engine feels sluggish after crawling traffic or on hot summer days it's probably a good thing (so long as it feels better with cooler air, and there are no other engine faults) The dme is protecting the engine from likely damage as a result of pinging. You really want a dyno when playing around with this kind of thing imo.

Nope not my old one. But yep was an individual and had “Press release car” on the options list.

Here’s the link to what the owners are looking for in new ownership and leadership. So if there’s people or a person who thinks they can handle it... Talk to the owners.

It is actually about ownership and leadership, Karen. The owners of Bimmersport are looking for someone to take over - That includes administration, hosting etc etc. the whole shebang. It is no skin off of my nose if i’m a good admin or not. This is a free to its members forum forf**k sakes. How about appreciating for a change that a lot of hard work has gone in to keeping this forum running over the years. So If you’re up for that challenge then reach out to the owners. But to me it sounds like you just want to pick and choose where to add “value” Dave which is not the main issue here.

Make an offer to buy it, appoint your own admins then everyones happy.

Some good insights here on owning/maintaining and restoring an e39 touring.

Hopefully the old Toyota sports car comebacks egg on some classic comebacks from Mazda, Nissan and Honda.

I think i read last week about 55k. Looks very capable and sounds a bit v8 like... artificial cabin engine noise maybe?

Bump now on TM. Reserve is not far off the start price, which is basically what I paid to get the TC rebuilt. https://www.trademe.co.nz/a/motors/car-parts-accessories/bmw/gear-boxes/listing/2763140457?bof=6k4qjjpS