M50 Manifold passer på 523, juhu!!

[Haug530D]

sendte en mail til alipna527 om M50 manifold på 523 og fikk mail tilbake, dette lover godt, jeg kommer til å kjøpe manifold fra Namotorwerks dog, men her er svaret jeg fikk:

Here are some details of my kit. Please note that you will also get the big bore

throttle body and Asc housing in the package.

Here are some details:

The Bbtb/manifold conversion is designed to remove the restrictions that BMW

deliberately built into the M52 2.8 engine. They did this to restrict the power

to 193 bhp (the same bhp as the old 2.5 unit). The reason for the restriction is

the German insurance market, which penalises cars which have more than 194 bhp.

However, the 2.8 has a much better torque figure than the 2.5 unit. It will fit

all E36 328s and all E39 528s up until 1998 model. It will also fit he 323 /523

models with similar gains in bhp.

The kit takes about 4 or 5 hours to fit. The only downside after installation is

the fuel rail cover cut outs don't quite match the manifold, though it is barely

noticeable. Also a small piece of one of the fuel rail bracket needs trimming

off. Everything is reversible, should you ever wish to resort back to the original.

Power gains with a free flow filter are in the region of 20 -25bhp, typically

giving around 218bhp on a 328 and around 193bhp on a 323.. Tests have shown that

this manifold will flow 275 cfm of air as opposed to the standard 185cfm!

Schrick make a free flow manifold, which costs £900 without the body! The

Schrick unit flows 250cfm.

The manifold itself is an extensively re worked second hand M50 manifold. The

modified manifold has a new custom made chamber, screwed and bonded into the

underside, which houses the idle valve, air sensor, and oil recirculation valve

in exactly the same position as the original M52 manifold. The manifold comes

complete with the previously used seals that came with it. Though you might

prefer to buy new ones. I can supply new seals at £25 for a set of six. There

are also two new special fittings, which accept the standard M52 stabiliser

brackets and idle valve cage.

Also in the kit is a big bore throttle body and if you have 'ASC', a big bore

traction control body. These are sold on an exchange basis, where you return

your old body or bodies once the kit is fitted. I will also need the plastic

chamber from your old manifold that houses the idle valve etc. The manifold

comes with a slightly reworked one already fitted.

E39 5 series models require a Pas reservoir relocation bracket at £15. I can

supply a brand new manifold instead of a second hand one at an extra £210. You

can retain all your old parts for an extra £115.

This conversion has to be easily the best power per pound that you can buy for

the M52 328/323 engine. The engine revs all the way to the redline without any

hesitation at all. Whereas the standard engine struggles from 4,500 revs.

The cost is £340 without traction control or £390 with traction control. + £20

postage. I can fit the kit for £100 (In Essex)

I can supply the throttle body on its own which can be fitted prior to the full

manifold conversion. This will cost £120 for non traction or £170 with traction

control. These are exchange prices, so I will need your old ones back after

fitting. The manifold can be added later.

In Summary

Bbtb/manifold kit £340 with exchange throttle body.

Bbtb/manifold kit with ASC (Traction Control) £390 with exchange throttle body.

With both of the above options, I will need your old throttle body and plastic

icv chamber/seal returning to me after fitting. If you have ASC, I will also

need the ASC unit.

Pas relocation bracket for E39 5 series £15 (Not required for E36 323/328)

If you prefer to keep your old parts, please add £50 for the throttle body, £50

for the ASC unit, and £15 for the icv cover.

The manifolds are second hand. If you prefer a brand new manifold, then please

add £210 to the overall price.

New manifold to head seals are £25 per set of 6.

I can allow £60 off the price if you supply the donor manifold.

Fitting is £100

Postage is £20

You can phone me on 01245 442851 or 07968 391056.

email alpina527@aol.com

Thanks, Ian

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