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Learning how to build Lotus Seven replicas...together!
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PostPosted: December 25, 2017, 12:21 am 
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Joined: December 24, 2017, 6:12 pm
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Hi! Ive been lurking here for years and finally signed up

I've always loved the ultra light lotus 7 style stuff. my background is in tracking and racing Honda's , and I still do that (NASA, Scca w2w, and I'm the Motorsports director for the Gridlife series, so I'm at the track a lot) , but I stumbled upon an incredibly unloved old , one off (the only full body car they made, and the only racecar they have made) Fraser. It's a boutique new Zealand company that builds nice cars.

In a previous life, when new, Steve millen drove this one a few times, but I guess it was always problem riddled. Miss fire prone due to the exhaust header being basically wrapped around the distributor, and I think that's what killed it finally for me on the first weekend I had it at the track, but oh my was it unbelievable fun to drive

Then I bought an R1 engine...

Image2017-08-22_07-48-18 by Adam Jabaay, on Flickr

Honda racecar project

Image2017-12-24_10-12-19 by Adam Jabaay, on Flickr

Image2017-12-24_10-12-40 by Adam Jabaay, on Flickr

Image2017-12-17_03-42-19 by Adam Jabaay, on Flickr

R1!
Image2017-12-24_10-14-02 by Adam Jabaay, on Flickr

How it looked when I got it . Bolt on roll bar will be rebuilt, it's a cobbled together piece now. Some other crash protection will be added too, for driver and fuel cell.

Image2017-08-12_11-29-12 by Adam Jabaay, on Flickr

A pic from Fraser cars from when brand new. Close out panel for "passenger" side got lost sometime in the last 20 years, and the paint job got a lot uglier!

Image2017-09-17_09-30-22 by Adam Jabaay, on Flickr

Steve millen driving it in the 1993 (I think) wangharei (spelled incorrectly I'm SURE) street Races in new Zealand, a street circuit race I believe.

Image2017-07-23_07-46-18 by Adam Jabaay, on Flickr

Me driving it at Gridlife Blackhawk Farms track day picnic this August. Oh it was fantastic. (I went through it all prior for safety, put new-er Hoosiers on, and new fluids, etc)

I think part of the reason it exploded (actually melted a Piston, bottom end is still useable with hone/new piston) is it's a CRAZY 4age. I believe it is most of the parts of an old formula Atlantic engine. It's also (it turns out) a twin disc low inertia clutch, and TRD close ratio trans. It's dry sump too. I think it did not like the regular gas I put in. (was told "I think it's just a stock engine" )

I'm not able to really play with something that nuts and expensive, and pay my bills, so it'll get sold off or mothballed, and the r1 will go in. This is strictly for fun and smiles
Image2017-08-09_07-08-28 by Adam Jabaay, on Flickr

It's hot crazy huge brakes. 1.25" thick, 12+" rotor. They work well . Incredible brakes....must be a lower temp pad as it had no bite issues , with a light car and such huge brakes. It did no noticable wear to Hoosiers in a half dozen sessions too. I love having a 1000 lb car!

Image2017-08-03_07-47-22 by Adam Jabaay, on Flickr

There is a lot to really like underneath, despite the neglect. It'll be a LOT easier to work on with a bike engine, this Toyota is JAMBED in

Image2017-07-23_07-45-42 by Adam Jabaay, on Flickr

Image2017-09-26_09-44-39 by Adam Jabaay, on Flickr

Forged everything in bottom end...

I love this angle. So much.

Unsure how I'm going to do the paint (the terrible yellow is basically falling off)....but I'd like to do it "original" for itself and restore to the tartan theme. It'll have to be DIY though

Image2017-07-23_07-45-01 by Adam Jabaay, on Flickr

From August at Blackhawk . My 3 yes old loves this car

Image2017-12-25_06-51-50 by Adam Jabaay, on Flickr

Image2017-12-25_06-52-15 by Adam Jabaay, on Flickr

Our dumb RV we've remodeled, and the beaut

Image2017-12-25_06-54-47 by Adam Jabaay, on Flickr

It got loud at the track for Emma. Mommy covered her ears

Image2017-12-25_06-55-05 by Adam Jabaay, on Flickr

That's all for now....bike engine progress soon!


Last edited by Adamjabaay on December 25, 2017, 8:58 am, edited 18 times in total.

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PostPosted: December 25, 2017, 4:57 am 
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Only one pic?

Convert to crank trigger ignition and ditch the distributor entirely.
You already have Carbies so only need to control ignition.
Probably able to adapt later model Toyo parts for a lot of it.
Even the cheapest Megasquirt should be able to handle it?

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PostPosted: December 25, 2017, 8:16 am 
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Joined: December 24, 2017, 6:12 pm
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RichardSIA wrote:
Only one pic?

Convert to crank trigger ignition and ditch the distributor entirely.
You already have Carbies so only need to control ignition.
Probably able to adapt later model Toyo parts for a lot of it.
Even the cheapest Megasquirt should be able to handle it?


Had trouble with forum , then the 3 year old was being crazy at the Christmas party!

Pics will be edited in a minute...

I think because it was my first post, and needed approval or something. Posted it to go look for image links , and it disappeared, twice


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PostPosted: December 25, 2017, 10:23 am 
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It's much better if you upload the pics directly to the forum as they'll always display and they will stay with the thread.

Not one picture is displaying when I open the post.

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PostPosted: December 25, 2017, 10:30 am 
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Weird, they work fine for me. I uploaded to flikr as I have on other forums

I'll look into uploading to forum, didn't know that was an option


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PostPosted: December 25, 2017, 11:21 am 
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Very similar to a Mallock.

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PostPosted: December 25, 2017, 6:49 pm 
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Toyotaphobe
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Adamjabaay wrote:
Weird, they work fine for me. I uploaded to flikr as I have on other forums

I'll look into uploading to forum, didn't know that was an option


It's super easy to upload to the forum, you just have to remember that they display in reverse order. So you load the first one last and the last one first.

You can even comment on each picture individually or load them inline with your text to make it even easier for us to follow along.

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PostPosted: December 27, 2017, 9:52 am 
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Joined: December 24, 2017, 6:12 pm
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Image2017-12-27_07-48-28 by Adam Jabaay, on Flickr

Baffle came in . Gotta buy a Barnett clutch setup next , but engine mockup will start soon


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PostPosted: January 25, 2018, 2:05 pm 
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Posts: 99
Very cool car, I am looking forward to seeing the build. A race car with both Paddle Shifting and 10,000+ RPM's sounds very exciting.
Question how safe is that add-on to the roll bar? Is that sufficiently safe in a rollover?


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PostPosted: January 25, 2018, 4:58 pm 
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Too bad you're giving up on your Cosworth, err Toyota. Toyota borrowed some dimensions from the Cosworth, like valve diameters and angles, bit it's its own engine. I wonder what it will cost to get the motorcycle engine in though? Are you going to adapt a driveshaft to the engine sprocket? Are your ratios going to work out? Because of the offset to install it may not be much smaller in the car... I would mock this stuff up before I sold the 4AGE. Good luck!

If you dress your daughter in shirts with ferocious dinosaurs, it' no wonder she grows up to like race cars!

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PostPosted: January 26, 2018, 8:20 am 
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We are Slotus!
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Yo-
I'd call a three-year-old, wearing a helmet and sitting in a racecar at Blackhawk "Parenting Done Right." Good on ya!

Keep us posted on the (re)build. Lotsa pictures!

Good luck with it!
:cheers:
JDK

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PostPosted: January 26, 2018, 11:37 am 
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I like the car; it looks like a lot of fun. I am very interested to see the adaptation of the motorcycle engine to the existing driveline. I'm also curious about the weight difference when it's all said and done. Please keep the pics coming.

As for the pics, if you can make them a little smaller it will be easier to see.

On the Honda, are those solid rods supporting the steering column? If so, are you at all worried about what may happen to them in an accident? In my head, I can see those breaking losing and becoming spears.

Ken


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PostPosted: January 28, 2018, 10:06 am 
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Still gathering parts and stuff for the R1 swap, and doing lots of reading here and elsewhere. The Fraser roll bar will need completely redone after my w2w Civic is Done fab work wise.... adding a rear halo section over the fuel cell too, under the body work, and some side impact protection under the body work too.

I'll be using a Hawk machine adapter on the r1, it's currently sitting on top the pile of parts.

Parting out the 4age setup slowly to pay for it all, and it'll be pretty easy to cover all the r1 swap (500$ for most of the r1 parts from a friend makes that easy!). Since minimal actual progress on that,here is a pic of the Civic. Lol

Image2018-01-03_07-42-43 by Adam Jabaay

Image2018-01-26_06-16-37 by Adam Jabaay

Two of the classes I intend to race in (scca STL and NASA HC2) require oem pedals but allow modifications for driver comfort. Since I have moved the seat 15" rearward, I needed some comfort mods. These are the mods!

And the steering column bracing is about finished, just need to weld it all up. Dimple die'd it all, and many electronic items will be mounted on it. No more Spears!


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PostPosted: February 9, 2018, 12:30 am 
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Louisville's luckEseven Lauds Locosts
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welcome! #homosexualforjabaay

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PostPosted: February 9, 2018, 8:52 pm 
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Nobody but you or me will get that joke Emile. Lol


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