about cosworth ex manifold ...from other topic
15-12-2006, 02:09 PM
#41
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Originally Posted by Mike Rainbird
Originally Posted by MAD YUM
Originally Posted by CossieRich
Dave,
Mike is just on the phone asking Harvey if you are correct and then will let us know his answer
Mike is just on the phone asking Harvey if you are correct and then will let us know his answer
I bet
I made that up anyway
.So was l correct what did harvey say???
15-12-2006, 02:11 PM
#42
Originally Posted by MAD YUM
Originally Posted by Mike Rainbird
Originally Posted by MAD YUM
Originally Posted by CossieRich
Dave,
Mike is just on the phone asking Harvey if you are correct and then will let us know his answer
Mike is just on the phone asking Harvey if you are correct and then will let us know his answer
I bet
I made that up anyway
.So was l correct what did harvey say???
15-12-2006, 02:34 PM
#44
Rich,
If the hat fits
.
Phil,
No I won't, as I have already discussed this at length with someone who knows manifold design inside out, so I'll leave you to bandy around your theories and stick to rigourous testing. FYI there is no way on this planet that heat from the manifold could transfer through the water-jacket and cause any issues. If you believe that, you're STUPID .
If the hat fits
.Phil,
No I won't, as I have already discussed this at length with someone who knows manifold design inside out, so I'll leave you to bandy around your theories and stick to rigourous testing
. FYI there is no way on this planet that heat from the manifold could transfer through the water-jacket and cause any issues. If you believe that, you're STUPID .
15-12-2006, 03:41 PM
#52
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Originally Posted by Bosch-Man
Mike......if the gas temperature is too hot and is sustained like on a top speed run you can very well hole a piston..FACT ...so surely the manifold being inefficent could cause this?
...so surely the manifold being inefficent could cause this?
15-12-2006, 03:46 PM
#53
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Originally Posted by MAD YUM
Originally Posted by Mike Rainbird
Originally Posted by RichardPON
Originally Posted by MAD YUM
what did harvey say???
What the matter Mike??? Harvey on the phone
Poor old fucking rainbird & harvey always get a shoeing from you 2
Remember boys what they say about bullies!
15-12-2006, 03:48 PM
#54
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Originally Posted by Doug Stirling
Originally Posted by Bosch-Man
Mike......if the gas temperature is too hot and is sustained like on a top speed run you can very well hole a piston..FACT ...so surely the manifold being inefficent could cause this?
...so surely the manifold being inefficent could cause this?
15-12-2006, 03:48 PM
#55
Originally Posted by Franco
Originally Posted by MAD YUM
Originally Posted by Mike Rainbird
Originally Posted by RichardPON
Originally Posted by MAD YUM
what did harvey say???
What the matter Mike??? Harvey on the phone
Poor old fucking rainbird & harvey always get a shoeing from you 2
Remember boys what they say about bullies! Mike knows im joking 
15-12-2006, 04:02 PM
#57
Originally Posted by Bosch-Man
Mike......if the gas temperature is too hot and is sustained like on a top speed run you can very well hole a piston..FACT ...so surely the manifold being inefficent could cause this?
...so surely the manifold being inefficent could cause this?. High comp is all very well on engine dynos where the load is held for a few seconds at a time, but on a car being held flat out, it is suicide without the aid of race fuel .I have yet to see a 2wd manifold cause such a restriction that you describe. However, I will of course tell Euan that he is sitting on a time bomb regarding trying to push his shonky 2wd manifold and T4 equipped car too far
. Funny how at 2.5 bar HELD on this shonky manifold / T4 (which achieved 60bhp AT THE WHEELS more than my own Sapphire on the same rollers - which was engine dynoed at 515bhp), he was the fastest car at Woodbridge 
.Obviously following your advice, I will be ditching my 2wd manifold as well
. Or perhaps instead I will running suitable compression ratio instead and having lots of ignition advance and no heat related issues .
15-12-2006, 04:12 PM
#59
...mike everthing has a limit and Euan was running within the manifolds effecienty area....unlike his T4 ROFL ....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones
....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones
15-12-2006, 04:16 PM
#60
DEYTUKURJERBS
Originally Posted by Bosch-Man
on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston..
Limit on power has fuck all to do with limit on reliability.
Esp not if mapped correct.
15-12-2006, 04:16 PM
#61
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Originally Posted by Bosch-Man
Mike......if the gas temperature is too hot and is sustained like on a top speed run you can very well hole a piston..FACT ...so surely the manifold being inefficent could cause this?
...so surely the manifold being inefficent could cause this?After a long and very interesting convo with Alan at AVA i beleive i have no worries about my exhaust manifold...
my car had no problems with water or oil temps after 5 runs down woodbridge..
the car is now back at AVA to extract a bit more power..
it will be extensivly tested at the new increased power levels to check temps etc..
The exhaust manifold will not be changed.
15-12-2006, 04:34 PM
#66
DEYTUKURJERBS
Originally Posted by Bosch-Man
...what would happen if you forced 2.5bar from a GT35 out thru a 4x4 manifold?
boost pressure just shows restriction, not flow.
the extra backpressure from the manifold would make 35psi but less power than on a better manifold.
not much related to reliability really if mapped right.
and?
15-12-2006, 04:41 PM
#67
Originally Posted by Bosch-Man
...mike everthing has a limit and Euan was running within the manifolds effecienty area....unlike his T4 ROFL ....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones
....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones .I disagree with your comments and I believe that high compression is BAD for top speed runs.
I will be sticking with the 2wd manifold, and I will have a relatively low compression (but not as low as Euans
).Martin ran high boost through his 2wd manifold (although not 2.5 bar
) and did 194mph with it - no issues.
15-12-2006, 04:45 PM
#69
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Originally Posted by Mike Rainbird
Originally Posted by Bosch-Man
...mike everthing has a limit and Euan was running within the manifolds effecienty area....unlike his T4 ROFL ....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones
....You keep on about hi comp melting engines...i aint on about that issue even though with race fuel its safe enuff on my idea of that style engine ...again your new engine will be within the tolerences .....put 600 + bhp on a std 2wd manifold and do many top speed runs you are running a risk of a holed piston...for the sake of 1k your best off with one of your tubular ones .I disagree with your comments and I believe that high compression is BAD for top speed runs.
I will be sticking with the 2wd manifold, and I will have a relatively low compression (but not as low as Euans
).Martin ran high boost through his 2wd manifold (although not 2.5 bar
) and did 194mph with it - no issues.mines is super low comp
not short on power so no need to raise it tho
15-12-2006, 07:33 PM
#74
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Originally Posted by martin-reyland
Originally Posted by Bosch-Man
..was it over a genuine 550bhp? TUV approved?
You told me some time back that your 194 was achieved on less than full boost & that 560/580 was all that was used. Can you please clear this up.
Lee maxed at around 177ish so no way he had 600bhp at the end of the straight, do you agree. Only Neil, beside myself , has run with a claimed Power over 640 & Neil had probs with Charge air & ran out of ouff at 186, obviously way down on Power by the end of the straight.
Of course Mike has done many runs in his dreams & so is qualified to say what happens at these Power levels
.Rod
15-12-2006, 08:44 PM
#75
Originally Posted by ThePH
Originally Posted by martin-reyland
Originally Posted by Bosch-Man
..was it over a genuine 550bhp? TUV approved?
You told me some time back that your 194 was achieved on less than full boost & that 560/580 was all that was used. Can you please clear this up.
Lee maxed at around 177ish so no way he had 600bhp at the end of the straight, do you agree. Only Neil, beside myself , has run with a claimed Power over 640 & Neil had probs with Charge air & ran out of ouff at 186, obviously way down on Power by the end of the straight.
Of course Mike has done many runs in his dreams & so is qualified to say what happens at these Power levels
.Rod
I ran 1.8 bar to gain 194 odd mph with a 2wd manifold,(perhaps my engines don't need loads of boost
)Bruce did 191 (with a 2wd manifold)
Gay Rainbow did 182?? (with a 2wd manifold)
Kev went to the moon and back with a 2wd manifold
You ran how many mph with a 2wd manifold,
Every man and his dog has used the 2wd manifold without probs!!
can you see a pattern?
Is this all about Ades engine?
15-12-2006, 09:13 PM
#77
Originally Posted by Bosch-Man
Martin can YOU see the pattern...nothing there over 550bhp.
15-12-2006, 09:30 PM
#78
Too many posts.. I need a life!!
i can not see why you would go for a 2wd manifold if you are wanting 450+ bhp as you are spending a lot of money building the engine so why skimp on a 2wd manifold when you can get a GOOD tubular manifold for about £900 that do give more all round power :
we have been testing one to a 2wd and is all round BETTER
So can have more power with less boost Or just more power lol
on a 2wd manifold when you can get a GOOD tubular manifold for about £900 that do give more all round power :we have been testing one to a 2wd and is all round BETTER
So can have more power with less boost
Or just more power lol
15-12-2006, 09:42 PM
#80
Too many posts.. I need a life!!
but when building a big bluid why not. peeps all ways use the 2wd
but a tubular will only add. and for the peeps running bigger turbos you can have them boosting up faster too
as we have tested on an escort
but a tubular will only add. and for the peeps running bigger turbos you can have them boosting up faster too
as we have tested on an escort