Jump to content

Track day bump, can we fix it?


Recommended Posts

Qwertyseiw

My Aerorace took a fairly hefty side-on impact with the tyrewall at Knockhill yesterday (I wasn’t the driver!). The front struck first but the rear also took a heavy load, the panhard rod is noticeably bent. But the front right suspension took the brunt and was completely crushed into the side of the car and has damaged the frame (see pic). Is this a straight forward cut, shut and bend job to fix? or do I need a new frame and complete rebuild?

I’ve never faced this scale of job before so all advice appreciated.

Regardless, I doubt I’ll have it fixed for Knockhill next weekend!

 

ED241745-2A52-4208-975D-A5C92AFAC4B1.jpeg

FA107589-B370-4FB6-895F-170502DE2131.jpeg

  • Sad 4
Link to post
Share on other sites
OldStager

wow, firstly how is the driver...

 

not sure i would be happy just replacing the bent bits, the bits that are not bent will have had some pretty large loads through them, thinking in particular the welds at each joint.

i am no expert in crash damage i am sure those more qualified will comment.

Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary

The critical bit might be the rear of the chassis, but then it all depends on the route you take to repair it.

 

If going the “official*” route, Westfield, from memory, but check, because situations change over time, can replace the front half of the chassis, from the end of the drivers footwell forward with a new part chassis, if the damage is bad enough, however, historically, I don’t think the rear had ever been replaced, I think by the time they get to that stage, it’s typically. A replacement full chassis.

 

If using a local fabrication company or specialist, or yourself if you have the ability, then in theory you could cut and replace any tube. Though you’d probably need to make up a jig to hold some parts true, while you cut the damage away.

 

*official, only in so far as there are no “authorised” repair shops for chassis damage, in the way there are with say, a tin top, outside of the factory itself.

 

If you did want to use an Independant then someone like Siltech would be my favoured choice.

 

Whats the damage to the back like?

 

Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary

PS, hope the driver survived both the crash and having to break the bad news to you, reasonably unscathed!

 

At the end of the day, it’s only metal and plastic, and it IS fixable!

Link to post
Share on other sites
maurici

The problem I see here is that both front sides have moved, unless the picture is fooling me, im pretty sure the left hand side has moved outboard quite a lot. So you have no true points to even draw flat in plywood to use as a jig/guide.

Probably someone with the right skills should be able to redo the front. If i was facing the same issue, i would reshell "reframe" the car...

Take an old unregistered chassis... drop it over your chasis... (legal bits not to be discused here) and crack on.

 

  • Like 1
Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary

Just in case you're not aware, if your chassis is beyond economic and/or safe repair, it can be returned to Westfield and they will manufacture a new (direct) replacement, with the same chassis number as the old one. The old one will then officially/legally be destroyed, as it no longer has a chassis number.

 

It does not require insurance etc to write off the chassis for this to happen, it's something you can speak directly to the factory about.

 

Personally, and this is my personal feeling only, assuming it has the rear chassis damage you mention, too. I'd never have quite the confidence in the current chassis again, even after repair. It's silly, probably, as done properly, it should be fine. But I'd far rather have a full new chassis around me.

  • Like 2
Link to post
Share on other sites
OldStager
3 minutes ago, Dave Eastwood (Gadgetman) - Club Secretary said:

 

Personally, and this is my personal feeling only, assuming it has the rear chassis damage you mention, too. I'd never have quite the confidence in the current chassis again, even after repair. It's silly, probably, as done properly, it should be fine. But I'd far rather have a full new chassis around me.

that would be my view as well, even though any tube repairs were done correctly.

i am sure this happens as lot with tube framed cars when on a circuit but if it were mine i would re - chassis the car.

i did once have an arguement with the tyre wall at loton, other than bent wishbones and a broken upright all seemed to be fine - until i tried to get the car set up for geo again, the chassis had moved 3mm yet you could see no obvious place where the distortion had occured. 

  • Like 1
Link to post
Share on other sites
Dave Eastwood (Gadgetman) - Club Secretary
2 hours ago, Qwertyseiw said:

My Aerorace took a fairly hefty side-on impact

 

Also, can i check, are you sure this is an Aerorace? It may just be a very early version, but the Aerorace was a specialist chassis designed for race use, made from lighter gauge steel, and with quite a bit of development in terms of extra bracing.

 

I can't see any of the bracing at the front in those pictures, that I'd normally expect, though as I say, maybe it's just an early version. I'm not sure, but I also thought the Aeroraces were all Sierra independent rears? 

 

Important to get your chassis versions correct with Westfields, when looking at repairs, replacing parts etc, as there are sometimes subtle, but non the less key differences.

Link to post
Share on other sites
Qwertyseiw

Thanks for all the replies. The car was built in 2014. I traced and spoke to the builder before buying the car. He said it was commissioned as a basic track car built to Aerorace spec, but I do remember his saying something about difficulty getting a chassis from Westfield quickly so they sold him one they had been using as a reference chassis, so it may not be a pure Aerorace.

Link to post
Share on other sites
Qwertyseiw

I attach a pic of the rear. The panhard rod is bent but everything else looks as if it will realign if I replace the rod.

 

 

6E538D5B-9A98-4D20-AB0B-D716B04B7E32.thumb.jpeg.f8f0720c4f84f4f06c178fc41628ce36.jpeg

573B1302-5501-4B54-9B6D-C9A2EDAD5B49.jpeg

Link to post
Share on other sites
NigelO

I’m no engineer, so I’m just offering an opinion 

 

I bought my Westie knowing it had been in an on-track bump and had had part of the chassis replaced. From the story I’ve been given, it looks quite similar to OP’s, but near side. The bump was enough for one of the header pipes to be dented, presumably by the lower wishbone folding back. The repair was at least ten years ago and the extent of chassis replacement can clearly be seen by the welds on the tubes and the less-than-perfect finish of the chassis paintwork (hand-painted). The repair section is the entire first 250 - 300mm of the chassis and about 500mm of the near side lower chassis rail (pas the engine mount) and about 250mm of the upper rail. Like OP’s shunt, I’m guessing the whole of the front end got pushed over - looks like the repairer wasn’t worried about taking the repair as far back as was needed.

 

I’ve just taken the body off ready for paint and a couple of very small sections of paint flaked off the chassis, which gives me a good opportunity to check the condition of the steel - still shiny metal.

 

The car’s geometry was set up by Matt at ProComp and nothing untoward was reported, so I’m assuming everything is pointing where it should be. The caster was very low, but I’m told that’s not uncommon, so I got Matt to make up some adjustable top wishbones to dial in some more caster.

 

Like I said, I’m no engineer, but I figured that if the car had lasted ten years after the repair, without rusting, falling in two or only going round left-handlers, it would have done so by now.

 

Good luck OP and as others have said, as long as the driver is OK, the rest is just metal and fibreglass and can be fixed.

 

 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

Please review our Terms of Use, Guidelines and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.