Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
|
it wasnt a c20xe
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
was on standard rods and pistons, had arp's
what caused it to blow, reving to 9k lifting off and putting the power back on again, going round crainer curves.....
|
Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
|
 I wouldn't like to lift in craner curves lol - I've gone round donnington in my gti and I thought it was a no no to lifting there 
Maybe the sudden drop with the turning caused a bit of oil starvation?
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
i wasnt driving at the time, wasnt so much a lift off, maybe going from 100% throttle to 90 to 100 again in a flash, 8900rpm -9000rpm in third gear.
most engines blow up hitting a limiter, this was simulating hitting a limiter.
|
johnscorsaXE
Member
Registered: 14th Sep 04
Location: Walsall
User status: Offline
|
9k rpm, fookin ell broster. your corsa must have been an animal!
|
Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
|
quote:
Originally posted by Paul_J
I'm assuming Standard gti / Vts rods are a bit more substantial compared to corsa ones?
My car gets regularily taken to 7800 rpm and car hasn't blown itself apart yet.
Depends if you are comparing like for like. The reciprocating mass of the piston is what causes failure, usually because the effort required to change the direction of the piston becomes too great for the spec of the crank/rods/piston itself.
This could happen at a comparatively low rev limit with an engine whose stroke is comparatively long, assuming pistons are the same bore. Of course comparing two engines of the same capacity you would have to reduce bore to increase stroke which affects the weight of the piston and thus its reciprocating mass.
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
quote:
Originally posted by broster
quote:
Originally posted by ed
That crank is a work of art. End of
i appreciate the comment, it is ace, machined from a solid chunk! how fantastic
It's machined. FUCK ME! It's even more of a work of art now, I would have thought it was forged cos machining something like that would be a mission!
|
alistairolsen
Member
Registered: 21st Jan 06
Location: glasgow
User status: Offline
|
when yuo lift off there is suddenly a lot less exhaust gas to pump out, so the piston travels with no resistance and this is when te breakage occurs.
|
steveboyslim
Member
Registered: 20th Sep 00
Location: herts
User status: Offline
|
With the correct rods ,pistons, valves and springs the engine would be safe to about 11,000+ rpm
Steve
|
lee mitchell
Member
Registered: 26th Jan 01
Location: kent...drive's: eveyones conversion cars hard lol
User status: Offline
|
quote:
Originally posted by steveboyslim
With the correct rods ,pistons, valves and springs the engine would be safe to about 11,000+ rpm
Steve
the man himself 
|
Mattb
Member
Registered: 2nd Feb 03
Location: Under your sisters bed
User status: Offline
|
Also to add, a dry sump set up allows the bottom end to run at a vacuum, meaning that there is less resistance when the piston is forced down on compression etc 
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
11k rev limit
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
should sound interesting hu! be like a bike going past!
hello steve
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
Just need to get it to 19k and you'll have yourself 0.4 of an F1 engine
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
power wise ill be producing just a little bit less power per cc than an f1 engine! now thats exciting!
|
jr
Member
Registered: 20th May 02
Location: Kent
User status: Offline
|
thanks for my MMS today, i want one now
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
pmsl, im so tempted to share the MMS to the rest of the world, but i feel it will be so much better once complete on thursday! you excited
|
Marc
Member
Registered: 11th Aug 02
Location: York
User status: Offline
|
I'm excited, I want pics
|
Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
|
I want an MMS
Is it what I think it is?
|
willay
Moderator
Organiser: South East, National Events
Premium Member
Registered: 10th Nov 02
Location: Roydon, Essex
User status: Offline
|
big picture of a goat.
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
robin you got mms, as has marc
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
I think broster has some carbon fibre pistons that only last 100 miles, but let the engine rev to 20,000 RPM and he doesn't want anyone to know apart from the people who got the MMS....
|
Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
|
nope, it was completely unrelated 
I think the one today was too.
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
Wont somone please buy some carbon fibre pistons though, please!
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
robin, you sure... was it a small box that was stuck to some carbon??? kinda related
|
