chaseracer Posted July 3, 2021 Author Share Posted July 3, 2021 IT'S OFFICIAL: the 720 is in-build at Sparrow Central! The Visa Solex is in a bucket of petrol and the new tinware is off to the powder-coaters this week. brownnova, mat_the_cat, The Moog and 4 others 6 1 Link to comment Share on other sites More sharing options...
St.Jude Posted July 3, 2021 Share Posted July 3, 2021 1 minute ago, chaseracer said: IT'S OFFICIAL: the 720 is in-build at Sparrow Central! The Visa Solex is in a bucket of petrol and the new tinware is off to the powder-coaters this week. Surely the petrol is meant to go in the carb? Not the carb in the petrol? LightBulbFun 1 Link to comment Share on other sites More sharing options...
chaseracer Posted July 3, 2021 Author Share Posted July 3, 2021 I thought the fuel consumption was a bit heavy... 😁 Deep cleaning, pre-vapour blasting. When it arrived, it was complete/all good but proper clagged up. No more. LightBulbFun, Stanky, CaptainBoom and 1 other 3 1 Link to comment Share on other sites More sharing options...
chaseracer Posted July 16, 2021 Author Share Posted July 16, 2021 jaypee, Floatylight, bunglebus and 15 others 18 Link to comment Share on other sites More sharing options...
Noel Tidybeard Posted July 16, 2021 Share Posted July 16, 2021 3 hours ago, chaseracer said: golly that's loud! 😎 chaseracer 1 Link to comment Share on other sites More sharing options...
chaseracer Posted July 17, 2021 Author Share Posted July 17, 2021 theshadow, Coprolalia, Tickman and 6 others 9 Link to comment Share on other sites More sharing options...
chaseracer Posted July 18, 2021 Author Share Posted July 18, 2021 In other local Dyane news, Laurence is a glutton for punishment, it seems! This moved under its own power yesterday, for the first time in 20+ years. The engine came out of the original racer circa 1995, and was used in at least one 24-hour race; it will have a check/light rebuild then go back in. EDIT: Further prodding has revealed a considerable amount of bran flakes where large areas of the chassis used to be. I think we've found our winter project... Jim Bell, LightBulbFun, mk2_craig and 3 others 6 Link to comment Share on other sites More sharing options...
richardmorris Posted July 18, 2021 Share Posted July 18, 2021 Is it a dyane engine then? Remind us oh mighty one the exact compression differences! Link to comment Share on other sites More sharing options...
chaseracer Posted July 18, 2021 Author Share Posted July 18, 2021 Yes - 9:1 pistons for racing, so Dyane motors were always favourite before the right parts became more easily available to rebuild a 2CV engine to the higher spec. 2CV 602 - CR=8.5:1 (29bhp) Dyane/Ami8 602 - CR=9:1, with assisted induction from the fan via the tube on the top of the shroud (33/35bhp, depending what you're reading) Sparrow 720 - block machined to accept larger steel barrels, so CR may be slightly higher; 48bhp running the standard twin-choke carb and cone filter, will be a few more with assisted induction through the Visa 652 Solex. We'll know more when it's been tested on the rolling road. LightBulbFun, Coprolalia, Floatylight and 3 others 6 Link to comment Share on other sites More sharing options...
wuvvum Posted July 18, 2021 Share Posted July 18, 2021 Never knew the Dyane engine was supercharged... chaseracer 1 Link to comment Share on other sites More sharing options...
dollywobbler Posted July 19, 2021 Share Posted July 19, 2021 7 hours ago, wuvvum said: Never knew the Dyane engine was supercharged... Only in a very loose term. A supercharger actually compresses the air rather than just blowing it around a bit. This is more just a fancy cold air feed. chaseracer 1 Link to comment Share on other sites More sharing options...
chaseracer Posted July 19, 2021 Author Share Posted July 19, 2021 Hence, 'assisted' not 'forced'...! 😉 Link to comment Share on other sites More sharing options...
catsinthewelder Posted July 20, 2021 Share Posted July 20, 2021 Kind of trickle charged 😉 Coprolalia, chaseracer, wuvvum and 3 others 6 Link to comment Share on other sites More sharing options...
chaseracer Posted December 7, 2021 Author Share Posted December 7, 2021 It's been eventful* over the past few months at Sparrow Central, but he's back on track and my 720 is next on the bench. Things is finally happening! Floatylight, mk2_craig, Tickman and 4 others 7 Link to comment Share on other sites More sharing options...
hairnet Posted December 7, 2021 Share Posted December 7, 2021 On 7/20/2021 at 8:50 AM, catsinthewelder said: Kind of trickle 😉 he only does that when he drives it chaseracer 1 Link to comment Share on other sites More sharing options...
richardmorris Posted December 7, 2021 Share Posted December 7, 2021 Oh good, more copy for the January edition the hotel California of publishing! chaseracer 1 Link to comment Share on other sites More sharing options...
dollywobbler Posted December 7, 2021 Share Posted December 7, 2021 5 hours ago, chaseracer said: It's been eventful* over the past few months at Sparrow Central, but he's back on track and my 720 is next on the bench. Things is finally happening! It was ever thus. Not sure I know of a busier person than Sparrow. I guess there is a reason for that. chaseracer 1 Link to comment Share on other sites More sharing options...
hairnet Posted December 7, 2021 Share Posted December 7, 2021 will there be a hubnut road test LightBulbFun 1 Link to comment Share on other sites More sharing options...
chaseracer Posted December 16, 2021 Author Share Posted December 16, 2021 On 03/07/2021 at 18:03, chaseracer said: IT'S OFFICIAL: the 720 is in-build at Sparrow Central! No, really... 😁 CreepingJesus, Jim Bell, 320touring and 7 others 10 Link to comment Share on other sites More sharing options...
mat_the_cat Posted December 16, 2021 Share Posted December 16, 2021 How have I missed this?! Link to comment Share on other sites More sharing options...
chaseracer Posted December 17, 2021 Author Share Posted December 17, 2021 Apparently, there are 'secret tweaks'... Racing improves the breed. Link to comment Share on other sites More sharing options...
chaseracer Posted December 23, 2021 Author Share Posted December 23, 2021 Just awaiting carb seals from ECAS... brownnova, wuvvum, Six-cylinder and 11 others 14 Link to comment Share on other sites More sharing options...
chaseracer Posted December 23, 2021 Author Share Posted December 23, 2021 The car itself will go to Hereford in the new year, while the bodywork (door bottom repairs / window seals / new locks) will be done by my mate Spanners near Solihull. This is convenient, because I need to clear the garage for electrical work on Chaseracer Towers. It's all starting to happen quite quickly... Floatylight, Bamboocarman, Tickman and 1 other 4 Link to comment Share on other sites More sharing options...
chaseracer Posted December 23, 2021 Author Share Posted December 23, 2021 https://www.instagram.com/p/CXtCR_JILEH/?utm_medium=copy_link&fbclid=IwAR2C2bmv8FrfEEjcbofTGFB9s7MekPkKFuTi7x4CSefJEtIHG_ZJdiqHL3o Floatylight 1 Link to comment Share on other sites More sharing options...
chaseracer Posted January 29, 2022 Author Share Posted January 29, 2022 On 23/12/2021 at 17:51, chaseracer said: The car itself will go to Hereford in the new year... And so it went, earlier today... 😎 AnnoyingPentium, Mrs6C, Surface Rust and 6 others 9 Link to comment Share on other sites More sharing options...
chaseracer Posted January 30, 2022 Author Share Posted January 30, 2022 The new engine has been run on the test rig - I saw it yesterday - so now Pete will fit it to the car, complete a fairly short job list (front windows/seals, new shocks, E10 fuel line, sort rear lights) then get a ticket and shake it down for a couple of hundred miles. puddlethumper, Tickman, sdkrc and 8 others 11 Link to comment Share on other sites More sharing options...
Tickman Posted January 30, 2022 Share Posted January 30, 2022 Outstanding news Link to comment Share on other sites More sharing options...
chaseracer Posted February 1, 2022 Author Share Posted February 1, 2022 Military strategists will tell you: no battle plan survives first contact. And so it is with work on old cars... Actually, it ain't that bad. The new engine's in, but a few small issues have been discovered by Mr Sparrow and his crack team. A rear wheel bearing was a bit noisy, so has been replaced. The gearbox had something in it that might once have been EP80; it now has the excellent lube Pete uses in his race car, as well as a new breather. The big one is this: That used to be the sender unit in the top of the fuel tank, which is also full of gunky shit. Might* explain some* of the running issues. Replacing tank/sender with new: "do it once, do it right". sdkrc, Fumbler, LightBulbFun and 8 others 11 Link to comment Share on other sites More sharing options...
richardmorris Posted February 1, 2022 Share Posted February 1, 2022 Can I pinch the last two pics please Dave? I desperately need something to put in the next issue. chaseracer 1 Link to comment Share on other sites More sharing options...
chaseracer Posted February 1, 2022 Author Share Posted February 1, 2022 No prob, Rich. richardmorris 1 Link to comment Share on other sites More sharing options...
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