551 A race oddity

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551 A race oddity

Post by MikeyBikey » Sat Jul 20, 2019 7:23 am

Epic stuff. What I think is great is you've taken a bag of bits and actually completed the build into a race car. It would have been so easy to not finish but you didn't so well done.


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551 A race oddity

Post by BigBobPilot » Sat Jul 20, 2019 8:29 am

philhoward wrote:
Sat Jul 20, 2019 7:22 am
Not the self-failing Nissan loom syndrome again?
Another "known issue" then! That's nice...


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by Corky » Sat Jul 20, 2019 8:58 am

Wow, that looks and sounds fantastic!

I fitted a heated screen to the SS1 DET that Steve and Josh now run. It was brilliant, but it doesn’t half sap the power. So my strategy was to turn it off just before the green light, but that was for a couple of minutes max’ , not twenty. I’ve got one fitted in my current sprint car as well, but as the original heater blower is less power hungry I’ve been using that instead and leaving it running most of the time.


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551 A race oddity

Post by swoakes » Sat Jul 20, 2019 10:03 am

Well done Ben car looks great. We had a misfire at Ty Croes which turned out to be cracked spark plug insulator. Easily done on the DET with the plugs in deep :oops: :roll:


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551 A race oddity

Post by philhoward » Sat Jul 20, 2019 12:23 pm

BigBobPilot wrote:
Sat Jul 20, 2019 8:29 am
philhoward wrote:
Sat Jul 20, 2019 7:22 am
Not the self-failing Nissan loom syndrome again?
Another "known issue" then! That's nice...
I keep hearing of (and seeing) cracking of the insulation - normally around the injector wiring and coil/power transistor area on the ET. Not that many SS1 DETs in use although Steve’s suggestion is a good shout.


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551 A race oddity

Post by BigBobPilot » Sat Jul 20, 2019 1:16 pm

It's not the spark plugs, I had the same issue with 2 sets of plugs & with plugs swapped between 1 & 2. I've not looked through the wiring yet to find the cause though.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by Dcrosby13 » Sat Jul 20, 2019 2:12 pm

I loiter on the Facebook DET page and I've seen people suggest a failing CAS can cause this sort of behaviour.


I break stuff...... :w

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551 A race oddity

Post by CNHSS1 » Sat Jul 20, 2019 5:44 pm

Good shake down by the looks Ben, although cant see much in 2nd vid :shock: I assuming you could see a little more than the Go Pro.

Car looks great in its final paint /warp scheme 8)


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551 A race oddity

Post by J55 JGL » Sat Jul 20, 2019 6:46 pm

Looks the dogs Ben 👌


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551 A race oddity

Post by BigBobPilot » Sat Jul 20, 2019 10:44 pm

CNHSS1 wrote:
Sat Jul 20, 2019 5:44 pm
I assume you could see a little more than the Go Pro.
Yes, a little bit. Along with the water leak & the wet race suit I did no wet weather prep on the screen inside (fairy liquid) or out (rain-X). I had both with me, but I was hoping the rain would stay away. I need a new wiper blade too.

Thanks John.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by BigBobPilot » Mon Jul 22, 2019 12:26 am

I’ve only spent a couple of hours on the car this weekend, after my Donnington test run.

Easy things first, I noticed from the in-car video that the cage foam on the roof diagonal was backwards, so wasn’t going to stop me clunking my crash helmet on the bar. I notched the end of the foam at the drivers door so it could slide as far to the right as possible, and lock it in to stop it rotating with vibration. Finally adding a 3rd zip tie on the far left.

I removed the ignition coil sub-harness & visually inspected it, then checked the resistance of every wire from pin to pin. Then the same on the main engine harness to the transistor power pack. There was nothing obviously untoward. Possibly one of the female terminals was a little loose, so I tightened up all the female terminals. After connecting it all back up, I ran the engine for a while with no issues. I pulled, pushed, wiggled & jiggled all the joints & coil wires with the engine running. I’ll put a spares pack together of a spare coil, the transistor power pack, coil sub-harness so I can swap bits out if there is any continued issue.

I’m not sure about a dodgy CAS, as the issue was specifically on no. 2 cylinder, with unburned fuel, even after swapping components around.

Last off was checking where I was getting tyre rubbing. With the slicks, I had thought I was rubbing the front splitter on the ground. But with the wets, the noise was definitely noise from the tyre blocks. Also there wasn’t a mark on the bottom of the splitter. I forgot to take my phone with me to the workshop, so I have no photos, but the inside corner of the tyres is catching on the bits of the inner wheel arch that are the wrong shape. i.e on the scallop where the standard fuel filler pipe runs (1) and the angled bit at the back that I think fits with the boot liner (2). The old photo from inside the boot shows the bits I mean. A little GRP re-shaping is required.
wheel arch shapes.JPG
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Also there was plenty of muck thrown up in the boot area, which isn’t too surprising as there was so much water & spray. Eventually, there will be a rear diffuser & flat under floor, which will improve the air-flow under the car, which was obviously throwing things up under the boot.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by BigBobPilot » Sat Jul 27, 2019 12:20 am

The drivers side wing is the last panel to be vinyl wrapped, so that's off again. Of course, that means the drivers door had to come off, which is pretty easy now, with the standard hinge pins replaced.
20190722_195640.jpg
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The gap to the hard top is visible. I had intended to cover this over, but hadn't got round to it. However, after water leaking through in my wet test session, it's jumped up the "to do" list. I pulled the screen finisher rubber away, as I wanted a strip of vinyl to sit underneath it, but first up, I ran a bead if silicone right across. Once this had dried and I cleaned it up, I ran some vinyl across & re fitted the rubber.
20190724_184929.jpg
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There are holes at each side that need a little more silicone, bit I sealed the screws on the roof, so I'm hopeful this will be an improvement on the water management.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by reliant-reviver » Sat Jul 27, 2019 4:37 am

The mouldings on early (narrower) inner wings have far shallower features, possibly even no relief for the fuel neck and a bird's beak of a corner indent. Likely not worth your time to widen another set but happy to supply some if wanted?


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551 A race oddity

Post by BigBobPilot » Sat Jul 27, 2019 2:49 pm

Thanks for the offer Phil, but I'll just modify the arches I've got, they are already seriously hacked about.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by BigBobPilot » Sat Jul 27, 2019 2:56 pm

I did say once the vinyl wrap was done on the SS1, I wouldn't be repeating it on anything else. However, I couldn't help myself... I rescued this beauty from scrap
20190714_173033.jpg
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It's going to be a new paddock bike, so I needed to make it match the SS1 of course. The main bit of the frame is wrapped, a little servicing, the addition of a saddle & some new orange accents.
20190727_104958.jpg
20190727_104958.jpg (229.79 KiB) Viewed 350 times
Last edited by BigBobPilot on Sat Jul 27, 2019 7:31 pm, edited 1 time in total.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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