Mike Rainbird

iTrader: (3)

Can you please detail the specifics, I am VERY interested in seeing the differences.

What turbo?
What dyno?
Engine spec?

Have you any pictures of the tubular design of the 2wd "copy"?

msport

I really cant see the meaning of making a 2wd copy.. Why make a copy of a already well proven and existing manifold? Those cant really be that hard to get? In my opinion you should only make a manifold to improve something.

Ford in the 80s had this long piped 2wd manifold due to the turbos of those days built happily backpressure and researh had not come that far to deal with it, later came the 4wd manifold as turbos started to get better, and with the benefits of lower rpm torque and faster spoolup(even with a larger turbo!)

The manifold is basically just a tube to transport the exhaustgasses to the turbo. The most important is the turbo, feed the turbo like it wants to be driven. Some turbos can make use of very short manifolds and use the stronger exhaustpulse to drive itself on real low rpms, others dont like this at all and chokes(due to clog in turbinehousing)causing lots of backpressure and broken engines(if not monitored/mapped correctly) I have already been jumped by these "super macho manifoldbuilders" that seem to solve everything with their manifolds. Its not quite that simple, well it is if you only produce long manifolds cause those work with every turbo on the market(even those from the 80s), but they dont make use of the advantages that a short manifold have. Ie It could be even better.. I use to like explaining in everydayterms for people to understand: If you put a tonne of TNT in the end of a cave and blow it off, where does it make most blastwave? If you can make use of the wave near the explosion or far out in the cave entrance, which would drive a windmill the best? Or if you put a bullet in a gun as used to and shoot a guy, or load the gun and put the bullet in the end of the barrel? See my point? It the way it works, IF the turbo is in the game. I really dont want to be nosy, I just want people to know more and maybe test own theories more than just follow the flow and not develop anything new. And really!!? Ł1000 for a manifold?! darn, I can get you manifolds in titaniumbased stainless for that! And it will look as you want! Full custom if desired.

Peter G

Who says that the manifold is a "copy" of a 2wd???
It would be great to see some of your work msport, and dynopapers from some Swedish YB engines.

Peter G

msport

Well hold your horses.. read the thread before flaming.

By Rainbird:

"Can you please detail the specifics, I am VERY interested in seeing the differences.

What turbo?
What dyno?
Engine spec?

Have you any pictures of the tubular design of the 2wd "copy"?

There are people who have seen my manifold designs, mostly in motorsports, i am not into streetracing. I can give you references if you need? For ex 1 Hillclimb YB 570+bhp 700+nm, 1 WRC YB National rallycar 363bhp 650+nm, 1 GrpA YB National rallycar, 1 cosworth YB FOCUS 4x4 National Sprintcar.. Need more? Its real demands on performance not just shine. I have seen nice manifolds from you also, so dont take it hard now.

Peter G

Im not flaming. Take a look on page 5 or 6 in this forum and you will find all the answers. Can you please tell us the Rallyteams that use your manifolds? As far as I know, there´s only one manifold that is classified on YB engine in Sweden, and thats the old WRC. Can you also show us dynopapers?
Im not taking this hard msport. I belive in what I do, and you belive in what you do...Okey? But you have talked about this for nearly 3 years. And NEVER show some results. Just talk... And theres alot of more people than me that is waiting. If your customers mostly is in the motorsport, I guess there will exist some proper dynopapers. So wheres the problem to give some feedback and not just words...???

Peter G

foreigneRS

i thought that swedes do take it hard - well they have in all the films i've seen




















sorry, just trying to lighten the thread up a bit it's a good one.

rapidcossie

a proven manifold would be a good seller

msport

Peter,

I dont have dynopapers on my computer, i have seen them in real life. I am not too much for computers, so I have not even bothered to get them in, and for second I dont have any need to put it all here.. See any pictures of my manifold designs? any dynopapers? no.. I dont have to advertise. 3 years and nothing.. well I just gave you, what 5-6 engines.. 3 of them built by me from beginning. I am not saying these are the best manifolds in the world or engines, I am trying to just say something else. I understand you have to advertise a lot and make you look the best ever since you are living on it. I do other job for living. Learn turbos Peter and you will propably be the best in the world on manifolds. I was just wondering, when i was up to cosworths and done them for a couple of years you came up from nowhere and started welding manifolds, suddenly you are the best? Where did you gain all knowledge from? Reading books?



Who said My items run in Sweden??? In national GrpH 4wd the turbo is free as long it has a 34mm restrictor, You are allowed to modify the manifold to accept the new turbo. Who cares after that.. nobody.. its free basically. In other countries you have other classes and rules.

CossieRich

iTrader: (1)

and they say us MADettes are touchy and like to start war

msport

Cant be done, there is no such thing as a universial manifold. Almost every turbo has different characterics and works different on different manifolds. But if you say for ex the best proven manifold for a garrett gt30r, then its a different thing. But it does not end there.. then you have camshafts, valves, compression, flow and so on that affects.

Gordon1

https://passionford.com/forum/viewto...964&highlight=

have a look

Mike Rainbird

iTrader: (3)

Have done .

Gordon1

sorry it was my dyno
thanks

Mike Rainbird

iTrader: (3)

Which is?

CossieRich

iTrader: (1)

i do hope your Dyno is TUV approved otherwsie the figures will be classed as mis-leading and inaccurate. Isnt that right Michael?

Stavros

TUV or not, it takes a few twiddles on dials to get whatever number you fancy.

CossieRich

iTrader: (1)

Steve,

I know mate. Im just winding Mike up. he deserves it after all

Gordon1

my dyno is a maha lps3000 4wd
that is calibrated twice a year

GARETH T

oooow dont tell mike that,, if it isnt bench dyno which is TUV approved he wont believe you!

redit your post and say its a superflow engine dyno

Gordon1

does not matter to me any way lol
all the testing is done on one dyno

CossieRich

iTrader: (1)

Has Mike Rainbird checked that the calibration was done properly.

weegie

sorry rapidcossie but bp was recorded in manifold at different places and turbo and exhaust aswell as temps trust me i think they always are

Mike Rainbird

iTrader: (3)

Exactly the way it should be done . I may not agree with the final figures as being a totally accurate representation of the actual bhp (especially if they are flywheel figures ), but as a back to back comparison, the difference will still be relevant . So ignore the MAD morons .

Any chance of the graphs over-layed so we can see the difference? If you don't know how to post them up, email them to me and I will do so for you .

foreigneRS

as long as the ambient conditions are the same

Mike Rainbird

iTrader: (3)

Dyno should be able to correct for this, providing that the barometric pressure and ambient temp of air entering air box is properly recorded and entered .

foreigneRS

even if one run is done at a temperature high enough for ACT related ignition retard to be occurring?

Mike Rainbird

iTrader: (3)

I would imagine that any "proper" test would be carried out on the same day . However, would need to see the dyno runs to confirm this .

Anonymous

...i beleive the 2wd manifold has a flaw and thats the angle it makes as it comes from the head...the tubular are all str8 out..what can happen is at serious power levels the heat doesnt expell properly due to the bends and can travel back causing over heating and a dead engine

I maintain over 550bhp GET A TUBULAR.

Mike the reason i quote only 570bhp at 2.5bar is because it isnt live mapped if it was it would be over 600bhp

Mike Rainbird

iTrader: (3)

So Lee's must just be the exception that proves the rule , as his made 605bhp on normal Super unleaded and has been maxed out at Bruntingthorpe without issue . Albeit only achieving a piffling 177mph* (due to 3.9 gearing), but it was revving to just under 8000rpm* at that point .

So to concure, I TOTALLY AND UTTERLY DISAGREE .

*Which incidentally is higher speed and revs than Ade's achieved before his let go, so something else needs to be considered as the problem IMO .

PS. Aren't you ignoring your own advice then You say 550bhp is safe limit for 2wd manifold, yet claiming to be running 570bhp with your one - something smells funny - aaaah yes, it's BULLSHIT

Anonymous

Mike thats if i did run 2.5bar which i wont be 2bar max for 550ish the limit

...it doesnt mean every engine will blow ...but please bare in mind lee's was a dyno 605bhp so 560 max in car ...the safe limit for no worries is 550bhp..over that you are risking...and deffo 650 + its operation certain explosion..of course this only applies if you are maxing the car out regualary...

Mike Rainbird

iTrader: (3)

Wasn't Ade's just over 600bhp on the DYNO on normal unleaded? So SIMILAR to Lee's in the car .

And as to your fictional power claims, that's like me saying if I ran my T4 at 40psi, I would have 600bhp . It just doesn't work like that .

But you CAN'T run 2.5 bar with a 2wd manifold according to you . MAKE UP YOUR MIND .

Anonymous

...who is talking about Ades?


...but my car would have 600bhp at 2.5bar

..yes you can run a 2wd manifold at 700bhp (if it could) providing it wernt a competition car.

Martin-Hadland

iTrader: (2)

interesting that YOU believe this , what about the angle the gas has to pass through in the head casting.......

Stavros

Maybe Phil has modded his engine so the sparkpug holes are now his exhaust ports

Martin-Hadland

iTrader: (2)

or maybe his exhaust gasses now exit through the holes in his pistons!!!

Stavros

No, thats MAD Ade

rapidcossie

how would you know?

unless your weegie Colin

Anonymous

..Martin just stating some facts...i assume your new engine is running the 2wd manifold?