BTB Zone 6 branch fitted !

[billgatese30]

but I might buy another E30 Sport!

want to buy mine for £10k

[gazm3]

Ill give you 10p.

[billgatese30]

done

[dazleeds]

Bang goes another potentialy good thread

[billgatese30]

yeah, sorry Iain, anyway,

post a sound clip so we know what to expext this weekend

[massive]

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

You would think, but my brothers VR6 leads were cheaper than golf gti ones - how they come to that conclusion i dont know

[gazm3]

Bang goes another potentialy good thread

Thats rich.

[Templ8e30]

yeah, sorry Iain, anyway,

post a sound clip so we know what to expext this weekend

I've got a waterproof microphone coming so I can video my Nurburgring trip so when it arrives I'll use that to make a clip. The exhaust sounds much better under load than just revving it

Simon, much easier to undo 1 nut and jack the engine up than fanny about removing 12 studs that were tightened in.

Cheers,

Iain T

[gazm3]

Many thanks Ian for the disc!.

See you at Ferrybridge.

Cheers Gareth.

[billgatese30]

i can't wait, either that or i'll hear it at the weeekend

[oguz327]

The btb 6 branch gets deeper aswell, done about 400 miles with mine and its getting more bass now.
Well pleased with it, so addicted to the sound you just wanna red line it everywhere
Many thanks Sal for the btb and Simon for fitting it

Just wondering what can if anything can be done about the low end loss in power?
Not too bothered as ive got used to driving it more like a 16 valver

Will have to see if i can get a sound clip together.

[stuartgallafant]

stick a lairy cam in it oguz!!!

bang goes another monkey!!! (the £500 variety!!!)

[M5pilot]

Oz,

A remap will help towards getting some low end torque back.

Look forward to hearing the car!

Sal

[reggid]

Just wondering what can if anything can be done about the low end loss in power?

Stroker

what are your engine specs at the moment?

[stuartgallafant]

dont suggest a 2.7! he doesnt need anymore encouragement!!!

[M5pilot]

OK, 2.8 M52 Crank based then

[Simon13]

OK, 2.8 M52 Crank based then

more work for no gains over 2.7

[oguz327]

OK, 2.8 M52 Crank based then

more work for no gains over 2.7

ffs dont start you two


To be fair i am quite happy with the performance as it is for now allthough you can never have too much power its fine for the time being.
I thought about cam but i thought this would only give more power further up the rev range once again same situation.

Remap would be cool but can this be done considerering i have a tech1/early engine managment system?

All of the above are over £400

[oguz327]

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

Just out of interest, where did you get your big valve head from or who did you get to modify yours?

[stonesie]

Remap would be cool but can this be done considerering i have a tech1/early engine managment system?

MS with a maf conversion

[e30_Turbo]

Remap would be cool but can this be done considerering i have a tech1/early engine managment system?

MS with a maf conversion

or Ms in alpha N mode and no maf either!

Or there is the later management on the early engines, a few bits needed but supposed to work well plus you can get a Zone chip too!

HTH, Mark.

[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

Just out of interest, where did you get your big valve head from or who did you get to modify yours?

I had the headwork done by this place http://www.impulsedevelopments.co.uk/ not cheap but top quality work.

Cheers,

Iain T

[M5pilot]

OK, 2.8 M52 Crank based then

more work for no gains over 2.7

Correction - there are gains, the low end torque is more - I've driven Adam Patchton's 2.8 and while it doesn't make huge power top end it certainly beats a 2.7 for low end grunt and midrange power.


Sal

[M5pilot]

Just fitted a BTB 6 branch to a zoners car but with a difference. The downpipes are made to fit BTB's single pipe system which is also on the car now.

I've not heard anything like it! The GUG (which resides in ireland now) is also getting the same 6 branch and exhaust fitted. Should go alot better than it did before with the blown scorpion and the old manifold.

Ant is coming over tommorrow to do some work and we will attempt to make a video clip.

BTB's stuff is pure class if a little expensive.

Sal

[Simon13]

i've been in Adam's car and that just isn't true. Infact it went very well but didn't pull like a good 2.7

Maybe Adam's car would of been better if bexleys hadn't cocked the maf up.

How can u honestly think that a manifold made by btb can be better than a firm like Racing Dynamic's?

I'll have the two manifolds next to each other 2moro, i'm sure the bore size on the btb is smaller for a start.

Iain why didn't u fit bigger valves to 2.5 head?!

[M5pilot]

i've been in Adam's car and that just isn't true. Infact it went very well but didn't pull like a good 2.7

Maybe Adam's car would of been better if bexleys hadn't cocked the maf up.

How can u honestly think that a manifold made by btb can be better than a firm like Racing Dynamic's?

I'll have the two manifolds next to each other 2moro, i'm sure the bore size on the btb is smaller for a start.

Iain why didn't u fit bigger valves to 2.5 head?!

You've not driven Adam's car, you've been in it. You've not even driven karan's car......I have. The Silver C2 had more grunt than karan's cr and patchton's has more low end than that.
Adam complains about the MAF conversion because of it's poor cold starts which has no effect on performance once warmed up - get your facts straight.
I'm in a better position to you to comment on this. The only real experience you have of a 2.7 is your own 180bhp version (with RD manifold - I wonder what it does without).

Since when did bore size mean everything in manifold design? BTB actually said the Bore size of the RD was too big. Joe (owner of BTB) is a highly respected individual in the autmotive industry. BTB have a fantastic reputation amongst engineers also.

The ONLY reasons you have issues with BTB are:

1) I sell their stuff and your anti Sal/E30zoneshop and everyone knows it.
2) You don't have one
3) Everything you have automatically becomes better than everything else.

Sal

[oguz327]

Remap would be cool but can this be done considerering i have a tech1/early engine managment system?

MS with a maf conversion

or Ms in alpha N mode and no maf either!

Or there is the later management on the early engines, a few bits needed but supposed to work well plus you can get a Zone chip too!

HTH, Mark.

Would upgrading slightly to the newer engine management be that much better than the older style one or just easyer tune?
Would i be right in thinking it wouldnt be an easy swap aswell?

[Jhonno]

MS with a maf conversion

or Ms in alpha N mode and no maf either!

Or there is the later management on the early engines, a few bits needed but supposed to work well plus you can get a Zone chip too!

HTH, Mark.

Would upgrading slightly to the newer engine management be that much better than the older style one or just easyer tune?
Would i be right in thinking it wouldnt be an easy swap aswell?

its not all that difficult afaik

go MS

[M5pilot]

If your going to do anything get rid of the AFM. You can't do a MAF conversion with your current management anyway.

MS running simple Throttle Angle with barometric will see a massive transformation in throttle reponse, noise and power.

You may lose even more low end torque though as losing the AFM for a hollow tube will further slow down intake airspeed.

I'll be able to explain practically when the C2 comes back from paint shop (if owner is around to give me keys.)

Sal

[oguz327]

fair few options, interesting stuff

[stuartgallafant]

i like the sound of some of it. wonder if it will help my iS

[Templ8e30]

Iain why didn't u fit bigger valves to 2.5 head?!

For a start bigger valves would not fit in the 525e piston pockets without having them machined.

I use the car as a daily driver so I couldn't afford or be arsed to have the car off the road for a week or so so I could strip the engine again and have the machining work done.

Also bigger valves would mean a more peaky/revvy engine which I don't want.

Cheers,

Iain T

[Sy_325]

i got a full exhaust system made by BTB for GUG. the gains are impressive to say the least, here are a few snaps before i put the system on about a month ago... single bore system now replaces the standard dual system...







quality outfit, big thanks to sal for helping me out with this system!

[oguz327]

That looks horny as

[tomson]

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

Just out of interest, where did you get your big valve head from or who did you get to modify yours?

I had the headwork done by this place http://www.impulsedevelopments.co.uk/ not cheap but top quality work.

Cheers,

Iain T

Iain,

what did you have them do to your cylinder head? Im almost ready to get mine sorted and im wondering if i should use these guys, their web site looks like they know what they are doing....

Cheers

Tom