There is more to life with TurboRenault.co.uk

Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Marks RX7 - lets break a rotary.

My mate done something very similar when his 33 GTR was off the road for an engine build.

Engine was at mine and the car was elsewhere for storage. When he was bringing the car out of storage, he was taking it off axle stands and the decat dropped off the downpipe flange and sat itself upright. No one seen it. Lowered the car down and it punctured a hole in the footwell. Lots and lots and lots of swearing.

Unfortunately these shitty things happen. 😒
 
My mate done something very similar when his 33 GTR was off the road for an engine build.

Engine was at mine and the car was elsewhere for storage. When he was bringing the car out of storage, he was taking it off axle stands and the decat dropped off the downpipe flange and sat itself upright. No one seen it. Lowered the car down and it punctured a hole in the footwell. Lots and lots and lots of swearing.

Unfortunately these shitty things happen. 😒
Indeed mate, was ridiculous situation and happened so fast. But with any luck a decent fix and I can forget about it.
 
The car hopefully gets welded up tomorrow morning, let’s hope for a good job.

I’ve had to remove the CDI ignition boxes and ECU to make sure I avoid another disaster of him accidentally melting these components. I need to also ensure that he has all of the right fire protective equipment to protect parts of the very new and expensive loom.

In other news I’ve spent more hours on with the tuner fine tuning various items. I didn’t really realise quite how complex this set up is, it’s truly next level to anything I’ve done before with electronics on cars.

What has impressed me the most is the sheer amount of safety measures and strategies that are in place as well as the ability to scale these in terms of warnings, alarms and full limp mode, even shutting down front or rear rotor or both.

They cover every conceivable sensor being read from fuel pressure, knock, ignition, lean/rich conditions via lamda, coolant pressure, oil pressure, oil temp, coolant temp, water/meth pressure & volume, EGTs and more.

Likely loads I’ve missed too but he’s programmed so many strategies that with my history of blowing up these engines this fills me with so much confidence.

Drive by way has bought a whole new raft of features and clever strategies too from launch control, ALS, flat shift, traction control but DBW can of course be used as part of safety features too by limiting throttle under certain conditions.

Once the car is up and running and im used to the dash I’ll do a comprehensive overview of how it all pieces together. It’s superb.

In terms of getting things moving. I’m waiting on the 02 sensor to arrive from Aus, I’m using the tuners specific sensors but should be here by Friday. I’ve had M10 nuts arrive today for the turbo to manifold flange so I can start putting all of that back together over the next few days.

Once funds allow I plan to add the Syvecs GPS module which starts to introduce even more snazzy features including onboard timing/lap times etc.

At our expected power level the gearbox is going to be a real issue. They start to chew through 3rd gear quite easily so until I can decide on a gearbox solution we will limit boost/torque in 3rd. The cheap option is an OS Giken gear set from Japan at a cost of around £1500 with a 3 month wait or the more elaborate HGT 6 speed sequential at a cost of around £13k. You know me
well enough by now to know which one I’d like 😂

This weekend we need to confirm and set timing next but the engine builder accidentally fitted the timing wheel back to front meaning I cannot read any of the marks. It’s a simple removal of a few belts plus 4 bolts to pull the pulley off and remedy this. Once this is all done we can get to the driving and tuning.

I’ve also managed to find an MOT station local that can help with the emissions bit of the test 😉
 
Afternoon folks.

Floor pan repaired, no more hole. Awaiting some raptor 2k to cover the area from underneath to match the rest of the car.

New 02 sensor has arrived, need to get the plug changed to match loom.

Turns out my clutch switch is broken, well of course it is, this is Lucifer the cursed after all. Fucking car !

IMG_0093.jpegIMG_0094.jpeg

Pretty obvious really when you look at it, should have noticed way sooner but I’m special sometimes. 😂 New one on order.

I’ve spent all morning putting the car back together including setting the ride height all round. Hopefully I can get off my driveway, no doubt I’ll rip the one of a kind bumper off soon, watch this space.

IMG_0013.jpeg

As part of this mornings fun and games I’ve had a bit of a lesson from the tuner on how the water/meth set up works and I have to say it’s bloody amazing. It combines multiple safeties which in itself is clever as it stops someone special like me blowing stuff up but it’s the tuning that I find so bloody clever.

The Ecu automatically reduces fuel injectors based on the meth pressure and in turn the meth jets themselves based on required overall mixture. It then works in unison with the CDI ignition to advance/retard based of his set parameters. (Boost/rpm/pump duty)

It then then has additional safety layered over the top telling the wastage to operate at a set boost pressure if any alarms are hit. So no meth pressure or empty tank = automatically switching to lowest boost setting and at the same time adjusting AFR target accordingly to stop lean conditions. There was so much more that went over my head but the point is it makes a mockery of my previous small little 1 x 500cc jet in throttle body elbow. 😂

Anyway, I’ve bored you all enough.

Next step is check timing with a light but also using what I’ve learnt is called the “bubble method” to 100% confirm TDC as I’ve read reports that the trigger wheel i have has been out as much as 7 degrees compared to their own timing marks so after all this I’m not taking any risks. Rotary’s don’t like timing issues - kaboom 💥

IMG_0098.jpeg

Once we’ve done this - full warm up sequence - check all is well, no leaks or obvious issues. Then a road test followed by an MOT.
 
Some positivity for a change.

First start up to full temp, starts perfectly and sounds great. Timing all set and in good shape.

I need to bleed/burp coolant system on next start up and apart from that I just need the new 02 sensor to come back with the correct loom plug.

With any luck I can go for a road test soon and then book an MOT.

Some positivity for a change.

First start up to full temp, starts perfectly and sounds great. Timing all set and in good shape.

 
Do you have to re tighten anything on a Rotary? My mate's just scored a rebuilt standard 13B from an RX8 for his Caterham type thing for a couple of hundred, he has always been lucky... Amazed by it's variable inlet port devices. Looks like he will need to alter the bonnet line a bit to fit it all on.. Yours sounds really sweet. Hope it all goes well.
 
Do you have to re tighten anything on a Rotary? My mate's just scored a rebuilt standard 13B from an RX8 for his Caterham type thing for a couple of hundred, he has always been lucky... Amazed by it's variable inlet port devices. Looks like he will need to alter the bonnet line a bit to fit it all on.. Yours sounds really sweet. Hope it all goes well.
No nothing out of the ordinary. Just a standard spanner check after first set of miles. As mines ported it likes to shake about a fair bit.
 
Some positivity for a change.

First start up to full temp, starts perfectly and sounds great. Timing all set and in good shape.

I need to bleed/burp coolant system on next start up and apart from that I just need the new 02 sensor to come back with the correct loom plug.

With any luck I can go for a road test soon and then book an MOT.

Some positivity for a change.

First start up to full temp, starts perfectly and sounds great. Timing all set and in good shape.


As good as it is to hear some good news.

Please keep these kind of posts to a minimum, they are far too short with nowhere near enough content. :D
 
As good as it is to hear some good news.

Please keep these kind of posts to a minimum, they are far too short with nowhere near enough content. :D
😂 as soon as it’s safe to do so and road legal I’ll get some longer and more engaging videos. Having said that running the engine in is the most boring task on the planet 😭
 
Well done bud, nice to hit a milestone like that (bar it being your 11th time...) lol

cant wait for some driving vids. how long till its booked for mapping?

Do we start the miles to rebuild counter now? 🤔 ;)
 
This mornings fun and games was checking water/meth set up.

Lucifer returns this morning with what looks to be a faulty pump. We are not quite seeing enough pressure & flow and the adjuster screw on top of the pump looks to be faulty. We managed to test to 2200cc per min but need to get up to 3000cc.

So Aquamist are on the case to replace pump or send me top section. I think this is like the 3rd or 4th DOA part I’ve had, mental.

Testing was worthwhile though as managed to find a rectify a few leaks in the system.

IMG_0142.jpegIMG_0149.jpegIMG_0178.jpeg



I’m going to collect 02 sensor and clutch switch tomorrow morning. Let’s hope they work.
 
Back
Top