| Page: |
| Home > Show Us Yours! > OT: Sprite A-series race engine | |||||||
 1849 Posts Member #: 672 The oversills police Oslo, Norway |
19th Mar, 2009 at 02:03:06pm
Robert Tarzwell style pistons:) He did that on his race engines |
||||||
 7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
19th Mar, 2009 at 02:35:18pm
On 19th Mar, 2009 carl talbot said:
On 19th Mar, 2009 theoneeyedlizard said:
What about if they were raised? On 19th Mar, 2009 Vegard said: On 19th Mar, 2009 theoneeyedlizard said:
I'm with Sprocket! The kidneys are lower than the outside. Although, what would be the reason for them to be like this? It's in the 6th post. F*ck loads of Squish , and probably , detonation and broken pistons Unless the plug positions are moved , head chamber altered , I recon a raised crown like that would tend to cause dead zones in the combustion Yes, but it isn't raised. That shape mirrors the combustion chamber shape, for maximum squish and efficient combustion. On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
||||||
|
667 Posts Member #: 1376 Post Whore clock tower with a sniper rifle |
19th Mar, 2009 at 02:45:08pm
On 19th Mar, 2009 MikeRace said:
yeahhh Didnt he tummle off a big rope and die?  wasn´t that the karate guy, can´t remember his name now…ricky or something, didn´t he get mute?? Smashed his adam apple on that rope, bad guy jumped on him with?? internationally known as "big" swede |
||||||
|
326 Posts Member #: 1323 Senior Member |
19th Mar, 2009 at 06:18:55pm
On 19th Mar, 2009 Vegard said:
On 19th Mar, 2009 carl talbot said:
On 19th Mar, 2009 theoneeyedlizard said:
What about if they were raised? On 19th Mar, 2009 Vegard said: On 19th Mar, 2009 theoneeyedlizard said:
I'm with Sprocket! The kidneys are lower than the outside. Although, what would be the reason for them to be like this? It's in the 6th post. F*ck loads of Squish , and probably , detonation and broken pistons Unless the plug positions are moved , head chamber altered , I recon a raised crown like that would tend to cause dead zones in the combustion Yes, but it isn't raised. That shape mirrors the combustion chamber shape, for maximum squish and efficient combustion. There's an intsy wintsy possibility that it may have been a theoretical question |
||||||
 1346 Posts Member #: 2340 Post Whore Dublin Ireland |
19th Mar, 2009 at 07:56:28pm
Colin it dead right here these are not raised crown piston quite the contrary what has been done is the piston dish has been made to match the shape of combustion chamber and the reason is as the Viking says to improve squish,
On 17th Feb, 2009 Rob H said:
I find the easiest way is to super glue the bolt to the end of one of my fingers. ______________________________________________________ |
||||||
 160 Posts Member #: 1085 Advanced Member Netherlands |
19th Mar, 2009 at 08:44:33pm
thanks for the comments:) And, yes, the kidneys are indeed lowered; interesting way to lower CR, which is basically why I posted them in the first place. It's very quick in any case. I've only driven it for 1 mile (from the container to storage) but I had a blast, going sideways most of the time. If all goes as planned to be seen somewhere on a French racing circuit soon. Problem is that seller forgot the exact spec, but from the way it revs it's anything but standard. Here's some more of the car as a whole. There's a remote oil filter/ry sump type system fitted as well. 1963 Cooper
|
||||||
|
7765 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
19th Mar, 2009 at 09:19:04pm
It's not a way to reduce CR, it's a way to gain valve clearance. Instead of a milled slot, this is the proper, albeit difficult way to do it. On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
||||||
|
667 Posts Member #: 1376 Post Whore clock tower with a sniper rifle |
20th Mar, 2009 at 07:10:48am
LOVELY CAR! Never seen a bugeye in race trim before, so cool! What is the curb weight app.?
internationally known as "big" swede |
||||||
 6549 Posts Member #: 1149 #1 Basshunter Fan Force Racing ICT Dept Manager Miglia Turbo Am frum Yokshyer tha noes! |
20th Mar, 2009 at 11:51:33am
LAVVVVLEEYY 1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.
|
||||||
 863 Posts Member #: 951 Post Whore Bromsgrove |
20th Mar, 2009 at 12:21:29pm
Neat aero screen solution on this car. 'Where does the engine go?' |
||||||
 4638 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
20th Mar, 2009 at 06:43:12pm
Yes very tidy ! :) |
||||||
|
160 Posts Member #: 1085 Advanced Member Netherlands |
20th Mar, 2009 at 10:52:04pm
Thanks for the feedback; I wish I could take credit for the work, but it was done by a friend of a friend (literally), who then had something go wrong with his brain and bought a Lotus Super 7 clone instead. I actually bought it with the intention of recouping some of the cost of having a 40ft container shipped (I failed miserably in that attempt btw, thanks a lot credit crunch On 20th Mar, 2009 G13B said:
LOVELY CAR! Never seen a bugeye in race trim before, so cool! What is the curb weight app.? 1963 Cooper
|
||||||
|
4314 Posts Member #: 700 Formerly British Open Classic The West Country |
20th Mar, 2009 at 11:35:38pm
Fantastic little froggy. Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
||||||
 9327 Posts Member #: 59 First mini turbo to get in the 12's & site perv Herefordshire |
21st Mar, 2009 at 12:49:43am
mmmmmmmmmmmm I want one tooo |
||||||
|
160 Posts Member #: 1085 Advanced Member Netherlands |
1st Apr, 2009 at 09:44:24pm
you can still have this one; the potential French buyer thought a leaking master clutch cylinder was enough reason to go back to Paris with an empty trailer... the rumor is true; they are quite mad (apart from list member Thierry of course On 21st Mar, 2009 Nic said:
mmmmmmmmmmmm I want one tooo 1963 Cooper
|
||||||
|
444 Posts Member #: 2885 Senior Member |
7th Apr, 2009 at 09:23:01pm
I dont think the crown is raised enough around the valve cutouts to cause any kind of burn obstruction? |
||||||
|
493 Posts Member #: 3894 Senior Member sallys gap. garden of Ireland |
8th Apr, 2009 at 12:09:01am
hario, the crown of the piston is machined down (lowered) to match the kidney shape of the chamber, unless ive read your post incorrectly, then im sorry.
|
||||||
| Home > Show Us Yours! > OT: Sprite A-series race engine | |||||||
|
|||||||
; racing it myself only crossed my mind when I saw it in the flesh (and even then; the cost, even with this for a starting point). I'm sad to see it go, but glad that someone will now campaign it, albeit in France| Page: |