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Gotta love big revs on a YB - now with FFD goodness

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Old 23-04-2012, 10:40 AM   #41
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What turbo is on that Magenta cossie?
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Old 23-04-2012, 11:32 AM   #42
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not all rwd cosworths have traction problems in the dry its all in the set up! a good beam / diff / tyre and suspension set up = no problems
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Old 23-04-2012, 11:44 AM   #43
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does anyone know why the magenta one has the bearing on the rocker cover rolling on the cam belt..?
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Old 23-04-2012, 11:57 AM   #44
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Quote:
Originally Posted by ajamesc View Post
not all rwd cosworths have traction problems in the dry its all in the set up! a good beam / diff / tyre and suspension set up = no problems

Correct!
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Old 23-04-2012, 02:12 PM   #45
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Quote:
Originally Posted by ajamesc View Post
not all rwd cosworths have traction problems in the dry its all in the set up! a good beam / diff / tyre and suspension set up = no problems
Agreed!
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Old 23-04-2012, 02:35 PM   #46
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whats with the extra guide roller on the cam belt on the last video?
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Old 23-04-2012, 02:41 PM   #47
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Quote:
Originally Posted by CossieRich View Post
What turbo is on that Magenta cossie?
Holset Pro52
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Old 23-04-2012, 02:47 PM   #48
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Quote:
Originally Posted by saph4be View Post
whats with the extra guide roller on the cam belt on the last video?
It prevents the cam belt bouncing.
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Old 25-04-2012, 08:28 PM   #49
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The size of the turbo in that last vid explains why it comes in brutal and causes massive wheel spin, but defo looks good
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Old 25-04-2012, 08:40 PM   #50
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am I the only one that think's the first cossie doesn't sound good

Sounds like it's got a screamer pipe? which I hate the sound of

HKS SSQV "BOV" - facking hate them too!

What is it actually revving too? sorry if I missed it in the thread.

I've known a cossie with hydraulic lifters to rev to 8500 and occasionally the lifters would pump up, so i'd definately say solid's are the way to go over 7800ish
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Old 25-04-2012, 08:59 PM   #51
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Quote:
Originally Posted by Karl View Post
That last video shows exactly the problem with RWD and big power in a cossie! Very hard to use it effectively without huge amounts of wheelspin!
Not if it's set up properly

Decent rear beam (set up properly) decent tyres, knowing to feather the throttle SHOULD it start to spin the tyres makes pretty good acceleration in my experience

Last edited by MAD Ade; 25-04-2012 at 09:17 PM.
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Old 25-04-2012, 09:02 PM   #52
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Quote:
Originally Posted by JamesH View Post
Correct!
You should know mate
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Old 30-04-2012, 12:23 PM   #53
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So what it needed for big revs on a yb?
Std internals balenced or steel rods or what?
Can l6/l8 be tweeked for high rpm or do you have to go aftermarket?

CheeRS Fraser
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Old 30-04-2012, 09:47 PM   #54
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Steel crank, h section rods, custom pistons, solid lifters, decent valve springs (isky), cams, head work, the list goes on and on....

Last edited by MAD Ade; 30-04-2012 at 09:48 PM.
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Old 30-04-2012, 09:56 PM   #55
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I disagree ade. Standard crank it absolutely awesome. 9200rpm and 710bhp 2.0 we have out there on standard crank, all beit lightweight, knife edged and polished
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Old 30-04-2012, 10:01 PM   #56
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Love how this sounds.may have been posted before.


http://www.youtube.com/watch?v=TLw0mMLHmIw
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Old 01-05-2012, 07:15 AM   #57
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Quote:
Originally Posted by J1mbo View Post
I disagree ade. Standard crank it absolutely awesome. 9200rpm and 710bhp 2.0 we have out there on standard crank, all beit lightweight, knife edged and polished
+1.

Stock bottom end is fine.
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Old 01-05-2012, 09:50 AM   #58
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Whats considered high revs ,before we decide on parts?
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Old 01-05-2012, 07:27 PM   #59
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Quote:
Originally Posted by Jasu View Post
+1.

Stock bottom end is fine.
You're both nuts, standard rods and crank, 700+ brake and 9000 prm? I wouldn't want to be running standard rods above 8 grand or above 550 brake....
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Old 01-05-2012, 07:31 PM   #60
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Quote:
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You're both nuts, standard rods and crank, 700+ brake and 9000 prm? I wouldn't want to be running standard rods above 8 grand or above 550 brake....
I think the problem is m.a.d power and torque is different to every one elses
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Old 01-05-2012, 07:47 PM   #61
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Quote:
Originally Posted by MAD Ade View Post
You're both nuts, standard rods and crank, 700+ brake and 9000 prm? I wouldn't want to be running standard rods above 8 grand or above 550 brake....
Hah...

Std. rods are very strong, I believe that most H-rods are weaker.

I'm building my own with new original internals (bottom end).
And hoping for +800hp.
I hope it comes alive in summer.
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Old 01-05-2012, 09:40 PM   #62
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Wo wo, who said standard rods? NOT me, standard crank only. We have just done gaz's engine 635bhp on std polish beam rods and would not take it past 7750. That's all they're good for IMHO.
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Old 01-05-2012, 09:40 PM   #63
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Quote:
Originally Posted by ajamesc View Post
I think the problem is m.a.d power and torque is different to every one elses
haha
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Old 01-05-2012, 09:42 PM   #64
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Oh, and ade, the standard crank design is better than some steel cranks out there, infact most.
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Old 01-05-2012, 10:23 PM   #65
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I am enjoying this thread some great info here Gents
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Old 01-05-2012, 10:32 PM   #66
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Quote:
Originally Posted by J1mbo View Post
Oh, and ade, the standard crank design is better than some steel cranks out there, infact most.
Correct most thats why choosing the right make is the key and having a custom spec that is know and tested is the best way to use one.

Mark
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Old 01-05-2012, 10:36 PM   #67
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Quote:
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Correct most thats why choosing the right make is the key and having a custom spec that is know and tested is the best way to use one.

Mark
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Old 05-05-2012, 12:22 AM   #68
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Quote:
Originally Posted by J1mbo View Post
Wo wo, who said standard rods? NOT me, standard crank only. We have just done gaz's engine 635bhp on std polish beam rods and would not take it past 7750. That's all they're good for IMHO.
Quote:
Originally Posted by J1mbo
I disagree ade. Standard crank it absolutely awesome. 9200rpm and 710bhp 2.0 we have out there on standard crank, all beit lightweight, knife edged and polished

"+1.

Stock bottom end is fine. "

This chap (Jasu) seems to think you can take a standard bottom end to to 9200rpm and 710bhp. What rods have you used on the above engine?

Mine's on a standard crank, nothing wrong with it, would'nt dream of continually revving it over 8500 though. Agree the standard rods are reaching their limit at 7500 rpm

Last edited by MAD Ade; 05-05-2012 at 12:41 AM.
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Old 05-05-2012, 12:30 AM   #69
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Quote:
Originally Posted by Jasu View Post
Hah...

Std. rods are very strong, I believe that most H-rods are weaker
Your opinion, you'll find out the hard way.
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Old 05-05-2012, 12:33 AM   #70
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Quote:
Originally Posted by J1mbo View Post
Oh, and ade, the standard crank design is better than some steel cranks out there, infact most.
Agree, but I'm talking Arrows or the like, yes there is some crap out there.
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Old 05-05-2012, 04:35 AM   #71
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Quote:
Originally Posted by MAD Ade View Post
Your opinion, you'll find out the hard way.
Hah...

You mean that the rods do not last high revs or do you mean that "bad rod ratio"?
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Old 05-05-2012, 09:10 AM   #72
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Rods I wouldn't take to that power Jesu So I agree with ade.

But my comment was the crank only which is awesome.

Jesu. Your rods will break before that power. And the standard 1.66 rod ratio is pretty poor. We run them in the 1.7s or 8s dependant on what cc engine.

I'd advice auto Verdi or arrow rods if your looking or them sort of figures.
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Old 05-05-2012, 03:18 PM   #73
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J1mbo, have you seen broken orig. rod?
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Old 05-05-2012, 05:26 PM   #74
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Gotta love the sound of a tuned YB!
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Old 05-05-2012, 06:06 PM   #75
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Quote:
Originally Posted by bamba View Post
Love how this sounds.may have been posted before.


http://www.youtube.com/watch?v=TLw0mMLHmIw
Lol at the bird talking about brakes and not shoes or handbags.
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Old 05-05-2012, 09:06 PM   #76
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Quote:
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J1mbo, have you seen broken orig. rod?
Not through power or rev personally.
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Old 05-05-2012, 10:02 PM   #77
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You should know mate
Certainly mate!
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Old 05-05-2012, 10:03 PM   #78
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Out of interest and this is just aimed at sparking a debate and hearing tuners views

the 550-650bhp usually quoted as the limit for the rods, where does this come from?

Have tuners tested to destruction, I know its hard finding on different specs with reliability over a certain amount of miles.

or is it a threshold just over rs500 btcc power that is just assume to be near the limit.

Has anyone ever gone to 700 on standard rods reliably?
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Old 06-05-2012, 07:17 AM   #79
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Original rods holds over 500hp with orig. bolts and I know that those bolts are weakest link. You can take +700 with orig. rods + proper bolts. However, they do not last forever. Nothing does.
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Old 06-05-2012, 10:25 PM   #80
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