Tial wastegate eBay

[TTM]

ORIGINAL: 944 man
This interests me Tom, but it frustrates me too, because Im not getting it. Simple explanation appreciated.

Well, given that the timing valve is the mechanical part of the boost controller in the factory set up, it means that it won't be able to cut boost to a lower value than what the wastegate spring allows. Like any other boost controller, the timing valve can add boost over what the wastegate spring will allow, but not allow for less.
So, if a factory car is supposed to run 0.75 bar at full load, you want the KLR to be able to cut boost as low as possible in case of knock.

If a spring of 0.4 bar was originally chosen, then it may mean that Porsche found that the engine would still be able to run safely 0.4 bar of boost with reduced ignition advance in case of knock.

 

[T3rra]

That's interesting. So what's the situation with most people who run stage 2?

Is the klr need as part off a chip set or can you just use stock klr? As the klr is made redundant by delte the cycle vavle?

So is it safer and better 2 run a weaker spring rate then boost rate? Don't dual port wastegate increase the opening resistance on the wastegate due 2 pressure both sides?


http://canada.europartsetc.com/inventory_quote.html?catalogid=1&year=1987&make=PO&model=944-T-001&category=76


Here's the company that the wastegate was brought from

 

[scam75]

ORIGINAL: T3rra

Blue tubing don't really appell to me. Light to keep things looking... Well black

Black.silver and gold( zinc ) will be my colour scheme.

How much you looking for anyway?

Hi T3rra

Cost me £55 inc delivery. You can have it for £40 posted.

Stuart

 

[TTM]

ORIGINAL: T3rra
That's interesting. So what's the situation with most people who run stage 2?

Is the klr need as part off a chip set or can you just use stock klr? As the klr is made redundant by delte the cycle vavle?

So is it safer and better 2 run a weaker spring rate then boost rate? Don't dual port wastegate increase the opening resistance on the wastegate due 2 pressure both sides?

All aftermarket chipsets I am aware of involve removing the timing valve to control boost with an external boost controller (either manual or electronic aftermaket), meaning removing the ability of the software to reduce boost in case of knock. It will reduce timing only, but not boost.

General consensus is that you won't get knock if using proper fuel and running at the peak boost pressure the chips were made to run at.