BTB Zone 6 branch fitted !

[Templ8e30]

I fitted my zone BTB 6 branch manifold today and am very impressed with the build quality and power gains.

I had to loosen the rhs engine mounting and jack the engine up a couple of inches to allow me to get the rearmost part of the manifold to fit between the suspension turret and the end of the exhaust studs and also removed the steering coupling to improve access but otherwise it went straight on

I also fitted a scorpion back box at the same time, sounds nice with a quiet burble at idle/low speed but turns into a proper menacing bellow at full throttle and high rpm. The 6 branch gives it a nice creamy 6 pot wail above 4k rpm a bit like the E46 M3 CSL as well

I've been for a good blast in the countryside and it definately has more power with a little less torque between idle and 2500 rpm. I nearly shit myself when doing an overtake, changed down into 2nd at about 35mph and punched the throttle, the revs shot up much more quickly than expected and I had to take evasive action to avoid clouting the rear right hand side of the car i was overtaking

This manifold is well worth the money and I wouldn't hesitate to buy one again.

I'll have to get her on a dyno and post the printout, I'm expecting some good results.

I'm ready for my trip to the 'ring now

Thanks to Sal for making this happen, your efforts are highly appreciated buddy

Here's some before and after shots

[dazleeds]

nice one mate

cant wait for a spin in her now

looks good and goes even better mmmm

cant wait to see ur dyno figures either mate

[Theo]

How come there is a loss of low end torque as a result of fitting the new manifold? Will I experience this when I fit my Hartge one, or is it a characteristic of this manifold in particular?

[billgatese30]

looking good Iain, can't wait to see how it goes/sounds/looks etc atthe next meet, you going to ferrybriidge next weekend or not?

[Templ8e30]

Chris, I am going to ferrybridge. See you there, I'll fetch some bibs so you don't drool all over my front wings

Theo, because of the design of the manifold having larger diameter and longer pipes there is a trade off, more power at the top end sacrificing low end torque. Just like fitting a lumpy cam will give more at the top but less at the bottom. It's not that much of a loss though You'll probably gain/lose less with the Hartge manifold.

Cheers,

Iain T

[Dan318-is]

but ian, what HT leads are you running?

[billgatese30]

Good man Iain, i can't wait

so are you giving free passenger rides or what

[Simon13]

Iain u don't need to jack the engine up or lose the steering coupling to fit it.

they sound a bit too high pitched for my liking

[topspark]

Iain ,

I see your drive is getting some pain again , what cam did you fit eventually??

lee

[stuartgallafant]

they sound a bit too high pitched for my liking

thats coz 'someone' had a racing dynamics exhaust...

[Simon13]

it's moved cars, wednesday my man!

[stuartgallafant]

cant wait!!!

[Andy335Touring]

Theo, because of the design of the manifold having larger diameter and longer pipes there is a trade off, more power at the top end sacrificing low end torque. Just like fitting a lumpy cam will give more at the top but less at the bottom. It's not that much of a loss though You'll probably gain/lose less with the Hartge manifold.

Cheers,

Iain T

You might get some torque back with a remap i guess ?

[Simon13]

if it's a 2.7 u shouldn't really notice too much loss down low due to the stroker nature of the engine.

it's more noticible on a 2.5, they rev even better with a 6 branch top end

[M5pilot]

Glad you like it Iain. It certainly does deliver.

Once it soots up inside the noise will change slightly. Stainless steel manifolds when new can sound a bit harsh.

Sal

[Templ8e30]

but ian, what HT leads are you running?

I've got Magnecor electrosports leads, only got them coz the originals were breaking down and these were the same price as a new genuine set but with a lifetime guarantoo. They felt like they gave more power and response but then my old leads were shagged

Iain u don't need to jack the engine up or lose the steering coupling to fit it.

they sound a bit too high pitched for my liking

There was no way they were going on without jacking up the engine, there wasn't enough space between the end of the exhaust studs and the suspension turret to allow the rear section past. Like trying to get a round peg in a square hole

You might get some torque back with a remap i guess ?

Megasquirt coming next

Cheers,

Iain T

[Dan318-is]

how much was that then like 80 quid?? (for 6 leads)

car is coming along very nicely mate

[Templ8e30]

how much was that then like 80 quid?? (for 6 leads)

car is coming along very nicely mate

About £90 iirc. Good quality leads.

Not much left to modify mate, think the bodywork and carpets are the only original bits left

Oh yeah free rides at ferrybridge but it may be several folks at once at this rate

Iain T

[Dan318-is]

you reckon four will be cheaper than six? best of luck mate

[cliffybabe]

i want a 6 Branch

[stuartgallafant]

i want a 6 Branch

shut up you big girl!!

[cliffybabe]

i want a 6 Branch

shut up you big girl!!

thats nice

[stuartgallafant]

i love you really! by the way, Oguz's 6 branch sounds glorious now its worn in!

[Cabrio]

Re: magnecor leads they are an improvement in spark and longevity over originals and cheaper so its a win win..available through convertible register in BMW Car Club at a discount..different thicknesses signified by diff colours Blue and red ones for thicker race car ones...black ones for original diameter...silicone leads

[Simon13]

i assumed u took all the studs out the head and fitted new studs and nuts!

if all the studs are out of the way it will fit without raising the engine off the mounts

[Templ8e30]

i assumed u took all the studs out the head and fitted new studs and nuts!

if all the studs are out of the way it will fit without raising the engine off the mounts

I fitted all new stainless studs a month or so ago when I fitted the big valve head !

No more rusty crusty exhaust studs for me

Iain T

[Simon13]

fair enough but why didn't u just take them out again? if they had copper grease on them they slide out?!

did u remove the standard manifold with the engine hot or cold?

[stevetigger]

I would lose the twin DTM style rear pipes!

[Simon13]

oh steve u are a div

[stevetigger]

oh steve u are a div

Why?

[Simon13]

i don't know u just are, u sold the cab yet for 6 bags for instance? or bought some 16 alpinas brand new from the dealer for 1k?

[stevetigger]

i don't know u just are, u sold the cab yet for 6 bags for instance? or bought some 16 alpinas brand new from the dealer for 1k?

You know I can get Alpina's for a grand new!! I proved that and No the car is still with me because I'm not selling it. I don't need to ever sell it, but I might buy another E30 Sport!

So really, I am not a div because I posted up a comment! Who made you the zone questioner?

[Jhonno]

Si is question master..

[reggid]

Do you have a sound clip mate? What exhaust are you runnin?