Visit to MK Motorsport very interesting.
27-07-2012, 02:29 PM
#42
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Totally agree about the Vibration. Before it cracked the block you could hear a slight buzz at certain rpm gone in an instant. I took expert advice afterwards the block cracked , they looked at the set-up suggested doubling the weight on the rear of the crank refitted a heavy flywheel that apparently moves the vibration. On the re-build the vibration was gone. We also suffered the belts turning inside out we always removed one for Topspeed runs to stop them taking each other off. Solution the same as you. We have not cracked another block since but Brunters is a stiff test. The MK girdle will help on the vibration front without taking half the strength out of the crank caps as it seems the crank caps are not the problem certainly my crank survived a 4 chunk block split & was measured to within 'as new' spec.
We can but try this solution if it works we will have a Topspeed record over 215mph if it dont a big bang but at least i will try.
We can but try this solution if it works we will have a Topspeed record over 215mph if it dont a big bang but at least i will try.
When i was starting to build this engine up i had an ikengineering crank nice billet lightweight crank and as i always do i sent it to mike jennings to be checked over and straight away he said you cant use that for this application as its not counter balanced enough..
We also never run to light a flywheel all for the same reasons as youve mentioned..
I now have a custom arrows crank with narrow journals to help with the space in the block girdle set up..it has huge counter balancing compared to the others weve looked at!!
Just working out exact rod lengths at moment and cr ratio etc as were using some pretty trick cosworth xd pistons..
cheers danny
27-07-2012, 03:35 PM
#44
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Well ive just been speaking to mk some more about the girdle kit and as ive said im perfectly happy with mine as is rod but as said theres always room for improvement when it comes to development and as most already know mk is a bit of a perfectionist!!
Anyway version 2 is already under way!!!lol..all the good ideas will be put together and there will be an even better one made in the near future..
Imo i dont think it needs to be even better and there might not even be a market for it but il happily bolt it to something insane to test it!!!lol
cheers danny
Anyway version 2 is already under way!!!lol..all the good ideas will be put together and there will be an even better one made in the near future..
Imo i dont think it needs to be even better and there might not even be a market for it but il happily bolt it to something insane to test it!!!lol
cheers danny
27-07-2012, 05:08 PM
#47
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[quote=Fullflush;5988259]Why not speak to Karl Norris, he has the engine in the Sunbeam revving to 10k[/quote
he has a shorter stroke engine,hence the higher revs but not something im interested in..
Also its not the power were talking about as i believe its circa 600 hp so not really a problem down there also being high revving it will have less torque and prob not as big a torque spike..
Although i dont know all the facts on his high revving sunbeam??
Im not sure he would agree on anything were doing either as he doesnt even believe in long studding the block etc and imo thats madness !!
cheers danny
he has a shorter stroke engine,hence the higher revs but not something im interested in..
Also its not the power were talking about as i believe its circa 600 hp so not really a problem down there also being high revving it will have less torque and prob not as big a torque spike..
Although i dont know all the facts on his high revving sunbeam??
Im not sure he would agree on anything were doing either as he doesnt even believe in long studding the block etc and imo thats madness !!
cheers danny
27-07-2012, 05:33 PM
#49
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Im sure james just tests engines for a big company that test big manufacturers engines but he may of heard of these sort of problems before??
cheers danny
27-07-2012, 06:11 PM
#50
I don't know much about NVH and it can be a bit of a black art. But I'm sure just having the right experienced people have a look, will soon tell you more than most on here know. And I'm not dissing anyone on here, but it's simply amazing if you speak to people who have worked in a specialist area for a long time.
27-07-2012, 06:40 PM
#51
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I don't know much about NVH and it can be a bit of a black art. But I'm sure just having the right experienced people have a look, will soon tell you more than most on here know. And I'm not dissing anyone on here, but it's simply amazing if you speak to people who have worked in a specialist area for a long time.
Yes your right mate as mike jennings was right in the forefront of development etc on the hart engines etc so he has a mass of knowledge in this area..
cheers danny
27-07-2012, 09:01 PM
#53
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im suprised a girdle has caused such a stir, makes me realise how far behind my beloved YB is in terms of development compared to propper tuners, i.e Jonus or Dahlback for I5 engines,
glad im 5 cylnder powered now
p.s Steve, thats a Lima isnt it?
Sean
glad im 5 cylnder powered now
p.s Steve, thats a Lima isnt it?
Sean
28-07-2012, 08:33 AM
#54
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me to!!!! Great thread but i get the feeling some think this is Formula 1. I dont know the Maldon Mafia or any other terrorist group
im just building a yb to attempt to reach 215mph in a 23 year old Taxi it will either do this or not. Its a hobby to keep the mind of a 66 year old pensioner alive with a bit of help from his cardigan wearing mate . This rebuild of my yb is costing about 8k not 80k .
28-07-2012, 10:32 AM
#55
I just googled pinto main caps on google images....and this appeared lol How cool is that !
http://www.fordpinto.com/your-pintos...d-pinto-motor/
http://www.fordpinto.com/your-pintos...d-pinto-motor/
I still drool over it and it's mine. It's a pretty straight forward deal. It's a .030 over stock stroke, 2.3, alcohol motor. The build up is:
Turbo block
Moldex billet crank
GRP rods
CP pistons
ARCA head
Esslinger 2232.5 cam {solid roller}
Sheet metal intake {454" plenum}
Custom header {1 3/4" primary}
Tial V60 wastegate
Tial B50 BOV
Wilson 105MM TB
8 212# injectors
NOS 50 shot {to spool turbo}
Borg Warner S480 turbo
5" exhaust
Reactor fly wheel
Motor plate is also adapter from 2.3 to SBF, then a JW bell to a 180 short planetary powerglide.
I plan to turn the motor 94-9600 RPM and it should put out around 14-1500 HP.
28-07-2012, 03:50 PM
#56
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What a savage engine that pinto is!!! lovely bit of work on that!!!
The girdle on that looks very simple and straight forward and i bet that is very effective too?
cheers danny
The girdle on that looks very simple and straight forward and i bet that is very effective too?
cheers danny
28-07-2012, 06:31 PM
#59
28-07-2012, 10:28 PM
#61
Steve
29-07-2012, 12:41 AM
#62
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29-07-2012, 02:32 PM
#63
Advanced PassionFord User
im only messing, the drive wasnt too bad and i got afew ideas of mark.
Glad you like the panels, did you have a good holiday aswell?
Matty
30-07-2012, 06:45 AM
#65
Testing the future
why not speak to the experts?
http://vibrationfree.co.uk/
as James says, this is a highly specialised area that very few people know much about, as is obvious from this thread. you can't just chuck stuff at an engine and hope it makes it better, as often it can make it worse. you have to first diagnose the problem in detail before you can look at solutions.
http://vibrationfree.co.uk/
as James says, this is a highly specialised area that very few people know much about, as is obvious from this thread. you can't just chuck stuff at an engine and hope it makes it better, as often it can make it worse. you have to first diagnose the problem in detail before you can look at solutions.
30-07-2012, 11:07 AM
#66
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why not speak to the experts?
http://vibrationfree.co.uk/
as James says, this is a highly specialised area that very few people know much about, as is obvious from this thread. you can't just chuck stuff at an engine and hope it makes it better, as often it can make it worse. you have to first diagnose the problem in detail before you can look at solutions.
http://vibrationfree.co.uk/
as James says, this is a highly specialised area that very few people know much about, as is obvious from this thread. you can't just chuck stuff at an engine and hope it makes it better, as often it can make it worse. you have to first diagnose the problem in detail before you can look at solutions.
Also a block girdle isnt going to make things worse and im not chucking things at my engine because iv had any problems in this area im just making the best engine i possibly can in one go...nothing to diagnose as youve put it..
The tall block is to take stress away from hig revving and gaining capicity without squashing it all together and strengthening the block at the same time,the girdle is to brace things even further and to stop the main caps going walkies so imo there wont be any issues with vibration or harmonics
cheers danny
30-07-2012, 07:38 PM
#67
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As said ive spoke to mike jennings in great detail about this..he is very knowledgeable when it comes to these things as he was involved heavily in all the 4 cylinder hart f1 engines and others..
Also a block girdle isnt going to make things worse and im not chucking things at my engine because iv had any problems in this area im just making the best engine i possibly can in one go...nothing to diagnose as youve put it..
The tall block is to take stress away from hig revving and gaining capicity without squashing it all together and strengthening the block at the same time,the girdle is to brace things even further and to stop the main caps going walkies so imo there wont be any issues with vibration or harmonics
cheers danny
Also a block girdle isnt going to make things worse and im not chucking things at my engine because iv had any problems in this area im just making the best engine i possibly can in one go...nothing to diagnose as youve put it..
The tall block is to take stress away from hig revving and gaining capicity without squashing it all together and strengthening the block at the same time,the girdle is to brace things even further and to stop the main caps going walkies so imo there wont be any issues with vibration or harmonics
cheers danny
if they were so good why dont engine builder like harvey gibbs, jullian godferry ect not go down this road.
thanks steven
30-07-2012, 08:46 PM
#68
i am interested to no something, if a tall block set up is such a good thing why does more tunners not do this then. the only engine i no of , of the top of my head with a tall block is martin from reyland .
if they were so good why dont engine builder like harvey gibbs, jullian godferry ect not go down this road.
thanks steven
if they were so good why dont engine builder like harvey gibbs, jullian godferry ect not go down this road.
thanks steven
30-07-2012, 09:40 PM
#69
Advanced PassionFord User
oh i know i was only messing, it was still good to come and have a chat. i was aware of your work before i had set of and was just ready to see some of it, dont worry theres always next time.. ill be back haha
05-08-2012, 02:34 PM
#70
PassionFord Post Whore!!
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