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Cheers mate. We will get there eventually. I considered taking the modified 197 head off my kangoo briefly to fit for testing. Soon changed mind as that would make 2x broken f4r's 😅 Forgot to add washed it on Sunday morning. Quick acf50 over the bare alloy parts and rcl kit.

I also have a stock of 1.2 racks if you want a freebie. Had a few off breakers sent incorrect when looking for a dci one.

Cant see no machining required on 250 pistons to be fair in 172 mate. Whats reason behind it? Same block height as 250 iirc and no protrusion. Look similar to meg2 pistons with valve cutouts so shouldnt have a problem with vvt activated. What cr are you aiming for. 1.3-1.5mm gasket should put...

Dci rack for ref. Shoud give a bit more room, and solid mounted compared to the bushes on 172 rack.. Megane headgasket on and send it.

Excellent cheers for doing some digging mate. I was unsure how valve float influenced afr - Ive read a couple of posts stating similar issues but on different engines and it has also pointed to not enough spring pressure or fitted incorrectly. I guess lack of valve control at that rpm will...

Cheers mate, much appreciated. I have tons of ecumaster logs here from mapping too.

I do indeed, 197 vvt so full 40 deg on inlet. We ran it up with solenoid disconnected and no difference up top. I know Haswell ran 182 vvt on this with 182 inlet cam, 197 exhaust cam. He said when full 16deg was activated on that setup it spooled later and lost power, bizarelly. To quote...

This is the old afr graph showing the issue move at 14psi. Exhaust manifold pics for ref..note longer runners on cyl 3 & 4 where egts spike briefly. Cylinders 1/4 & 2/3 are paired for twin scroll so assume no gate/backpressure issues and boost holds rock solid.

Its got to be something simple. I will drop a 182 inlet cam in over winter, needs cambelt doing next year anyway. Need to mod the 182 inlet for a trigger wheel for cam sensor, same as the kangoo. Im curious about the double valve springs, i.e lack of valve control at that rpm for whatever...

Ill get it resolved eventually mate, hopefully😂 Brainstorming whats changed on it since Haswell had it. Basically engine is the same apart from headwork, different valves, different valve springs, cam's and thinner headgasket to raise the cr which is still low around 8. Head is ported and has...

Updates. Apoligies long as f**k - TLDR - looks pretty but still not mapped/doesnt work right. Trip down to EfiParts on Sat for a pm dyno/mapping slot. Worst weather possible, of course! Non stop torrential rain..i honestly didnt feel like going on the morning as i hate driving this in the...

From a quick look at the pics, its going to require sills and jacking points replacing/welding.

Great job on refreshing the steering wheel.

197 plug is a 7 heat grade, compared to 172 which is a 6 heat grade. So essentially you would be running a slightly colder plug. Cant see you needing it unless cr increase etc. With cr increase or high rpm screamer, the colder plug would be better for increased combustion chamber temps/knock...

The line on its own wont change the fluid temp if its just a replacement for oem. Just drop the pas fluid level to the minimum mark, flush the old out for fresh and you wont have any issues.

Small update Knocked up a small loom to add a couple more switches on the ecumaster canbus switchboard today in the sacrificial dash panel. Daft hours work. Both setup in ecu and working. Not sure what to use them for yet. Poss sport throttle map and linear for street. Maybe rolling anti lag...

Cheers mate. Just a have a go hero i guess. Think about the issues and usually get a resolution several months later 😁 Cheers mate. Getting there slowly, i really hope the fuel system works this time round. Itll be nice and linear, lay the power down in a fashion and fu k off into the sunset...

Not guilty on that one. Cash converters £50 special for clip only. Need to get a half decent thinkpad or something similar as a slight upgrade. Put all ecu/diag software on it. My other laptop is on its last legs and is struggling as its also ancient/getting hammered with win11 updates.

Update ZF gear tooth speed sensor arrived today (part no GS100701). This is the same sensor ive seen for £70 -100 on a few tuner places, where in reality its £30 from Rs Components. With weather being good and curious to see if it was a goer, i freed a couple of hours up this afternoon to fit...

Lower charge temps are always a winner. No downsides.