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What have I done now..... V6 seiw build


Steve (sdh2903)

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Steve (sdh2903)
20 minutes ago, CosKev said:

Look great.

How have you decided the height of the stacks?

Just going as high as you can in the space?

 

Yeah pretty much. I've gone as long as possible overall whilst allowing for a 20-25mm clearance between bell mouth and underside of the filter and the 15mm thick filter foam. There is scope for 15mm more runner length if I end up going to a airbox instead but we'll see. 

 

I could have had a shorter lower piece and a longer stack but then the round to oval transition would have been very sharp. But then again I think it's the overall runner length that's important. 

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A socially distanced pass 

Well after 8 months with no westy in the garage I'm now the proud (Well ish) owner of  a lot of parts that may well, one day, end up drivable  A cheeky eBay bid later (not expecting to win mind) a

Not sure it would make much difference. The pwm bosch valve has very small increments of movement. A 1 percentage point of movement is almost impossible to see by eye.   Got back on to inter

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Steve (sdh2903)

After I'd printed the full bank set I thought I'd better assemble up on the engine as although everything had been trialled in sections not with all the seals in place. Unfortunately this brought up an assembly issue with the sealing o rings. 

 

When pressing the bodies into the lower adapters the o rings were riding up due to the profile on the throttle bodies. Doh. 

 

So some trial and error prints ensued along with different size orings. Ended up with a smaller o ring and a sloped section on the adapter which resulted in the seal staying put and compressing well. Hard to see in the print below

 

20210112_130510.thumb.jpg.76515f57b10a760eb0ade9aee87e6746.jpg

 

20210112_130451.thumb.jpg.e0b27f871e1c15aa3c376aa0d8de1213.jpg

 

Also after that little faux pas I also dropped one of the sets of throttle bodies and cracked it. Lucky they are only 20 quid a set! Although the replacement set looked like they had done a fair bit of work

 

20210112_112347.thumb.jpg.7155834506052300de9e370cacc3a0f7.jpg

 

So all the new adapters now printed and all test fitted

 

20210112_133255.thumb.jpg.5d2781a221ea0e54e05d8cb57ae8eca7.jpg

 

20210112_133441.thumb.jpg.2f5da953eb5ef83de7add96ee2bce491.jpg

 

And a backplate roughly cut out. 

 

20210112_152038.thumb.jpg.148572327cabbf5def0e9e72e0ff00c4.jpg

 

With regards to the bodies. The outlet starts to shape to oval and has a small lip after the butterfly. 

 

20210112_114620.thumb.jpg.f10ca275d8574e7f44b0b855192d15dc.jpg

 

Heres the lip

 

20210112_122851.thumb.jpg.9ab7df8bf550839bb9e04de4a3515e58.jpg

 

20210112_122905.thumb.jpg.e6a9004a2a03723853f1ccf354e13de6.jpg

 

So my thoughts are do I leave it as designed or do I smooth the lip and open up the outlet?

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Gary Taylor

I would leave it as is, the lip will induce a slight turbulence into the airflow which will aid atomisation and the slight restriction will accelerate the airflow. Originally there would have been a lot of research into the flow dynamics and smoothing it all out can do more harm than good. It’s the same ideas as when flow porting heads.

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CosKev
48 minutes ago, Steve (sdh2903) said:

 

 

 

 

20210112_133441.thumb.jpg.2f5da953eb5ef83de7add96ee2bce491.jpg

 

They look great,nice job😎👌

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Steve (sdh2903)
16 hours ago, Gary Taylor - Scotland AO said:

I would leave it as is, the lip will induce a slight turbulence into the airflow which will aid atomisation and the slight restriction will accelerate the airflow. Originally there would have been a lot of research into the flow dynamics and smoothing it all out can do more harm than good. It’s the same ideas as when flow porting heads.

 

I would agree just on the basis the designers at keihin know far more about what they're doing than some numpty in his garage armed with a dremel 😁

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  • 4 weeks later...
CosKev

How are you getting on?👍

 

Been expecting a video with some nice noise for atleast a week.......😁

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Steve (sdh2903)

Haha. I currently have about 5 ‘projects’ on the car running concurrently, i really need to get at least 1 finished:d

 

Although I’m currently having to work away from home and with a 6 hour drive each end of the week, so time is non existent for this month and probably next, which may lead to putting the old inlet back on and putting the TBs on the back burner as I’d rather be driving it than faffing with it come the spring.

 

hows your mental creation coming along @CosKev must be running by now?

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CosKev
4 hours ago, Steve (sdh2903) said:

hows your mental creation coming along @CosKev must be running by now?

 

No not yet, surprising how long it takes making up parts 😏

Gone over to a full size alternator to sort the voltage issues,so had to make up new mounts for that. 

Fitted a CWA400 Pierburg water pump,that needed a new bracket as the mounts were totally different to the CWA200🤦‍♂️.

Most of the stuff is made now though,so need to decide on coating for the manifolds etc then swap the engines over.

 

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  • 4 weeks later...
Steve (sdh2903)

Finally finished some jobs yay. Well nearly...... 

 

First up was an electronic brake pedal switch. The hyd one was getting intermittent and I had forgotten to take a feed for the freewheel input so killed 2 birds with 1 stone. Many thanks to @Greenstreak-Andy D for his mount design.

 

Secondly. I needed to refit my dash switch hoops that were the iva failure. Ever since I cut the dash it had annoyed me where I'd placed the mirror control switch. It just looked plonked on. A bit drastic I know but a new dash from @Rednop1 was bought.

 

20210226_141728.thumb.jpg.ed0b6c2c09b3c6fedea86e849b139b67.jpg

 

20210226_141738.thumb.jpg.ed796072e5f70564850a7427dc2bb8b9.jpg

 

Slightly altered the other switches too. I've changed the separate side/dipped switches into a combined one as I didn't like the fact I could in effect have the headlights on with no sidelights.

 

Added in a dash mounted indicator switch, a slight issue last year with the freewheel left me with no indicators so thought in the unlikely event of another issue I wouldn't have to start waving my arms around like a dafty.

 

Lastly I've added in a switch for ignition and start. I will go keyless at some point and the switch is there ready to do so. 

 

Just waiting on a cig lighter socket to turn up then I can refit the lower console and the dash. 

 

Regarding the itbs. I drew up and printed up a frame to make a filter. 

 

20210305_112317.thumb.jpg.edd43948cf6708b795ca6e50dcd6d211.jpg

 

This joins together and then bolts to the back plate. 

 

20210305_115302.thumb.jpg.aee4483bd34c0f6f8614fe47bddd1a80.jpg

 

Then the mesh cut

 

20210305_133311.thumb.jpg.1f48a0d227da76fca3d7f13deb417814.jpg

 

And then folded and after a million stab wounds the legs were all pressed into the holes. A bit of locking wire holds it secure.

 

20210305_143933.thumb.jpg.78cf51c7f7f3581abded1cbcd7006081.jpg

 

I have a sheet of air filter material to somehow attach to this now. I've trialled some high temp contact adhesive to see if it's suitable for the foam. 

 

Ive still been putting off the linkage but can't really avoid it further. The guy who I took inspiration uses a simple threaded bar to link them. So I'll try that first. 

 

If not I'm going to try one of these 

 

https://www.venhill.co.uk/universal-1-into-2-throttle-cable-kit-u01-4-125.html

 

Just need to check that 33mm of throw is enough. 

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CosKev
16 hours ago, Steve (sdh2903) said:

I didn't like the fact I could in effect have the headlights on with no sidelights.

 

Surely this would be a IVA fail?🤔

Presuming they just missed it?🤷🏾‍♂️

 

Filter looks like a great start👌

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Steve (sdh2903)

Yes I think it should have failed. I only noticed it when I was driving to IVA. Good job I did all the button pushing during the test ;) the only one he really paid attention to was the fog light logic.

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CosKev

If you used the same IVA centre that Raptor Cars take their cars too I think quite a lot slips through the net there 😏

Pics they put up of cars going for IVA one had side repeaters built into motorbike wing mirrors,no vision from the rear,passed😏

Another one with side repeaters on the scuttle, passed😏

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Steve (sdh2903)

Well it's their nearest centre but I don't know if they use livingston or not. I agree though some of the pics of cars 'ready for iva' definitly have things that shouldn't go through. 

 

They definitly wouldn't go through with the tester I had but he was covering from Carlisle, it was definitly the most stringent iva out of the 3 I've done. Aside from the silly dash fail issue on the switch guards, he also went as far as timing the wipers to accurately count the number of sweeps per minute, blink rates of indicators and a few other bits and pieces that hadn't come up before. 

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Dave Eastwood (Gadgetman) - Club Secretary
Just now, Steve (sdh2903) said:

he also went as far as timing the wipers to accurately count the number of sweeps per minute, blink rates of indicators and a few other bits and pieces that hadn't come up before. 

 

Wow, I remember you saying what it was like at the time, never had anything that fastidious, thank goodness!

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Steve (sdh2903)

In fact from memory I was nearly getting a fail on the wiper sweeps as they were just out according to his count. It was only the freewheel control having an intermittent wipe which saved me, as it meant the required sweeps changed for 3 speed wipers rather than 2.

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