fiestaturbo.com

[freak power]

As you can see from the last pic you have a 105ps spec body to a 65mm one that i'm using on the zetec and cvh manifold conversion

[Excursion]

I've done this before with a Ford V8 TB, trouble is the restriction is the stock inlet.

[Smo]

Couple of questions:

How would standard management cope with a larger throttle body?

How does a larger throttle body affect low-end torque on an NA car?

[freak power]

I've done this before with a Ford V8 TB, trouble is the restriction is the stock inlet.

I'm building another manifold too

[chumkila]

That looks huge man!

[si 16valver]

no these look huge 42mmx4 and unrestricted manifold

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... &rd=1&rd=1

[freak power]

no these look huge 42mmx4 and unrestricted manifold

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... &rd=1&rd=1

Thats another story

[si 16valver]

yeah true but you might as well go the whole 9 if you want more power

[freak power]

yeah true but you might as well go the whole 9 if you want more power

Not everyone can afford to like i have done with my engine

[Smo]

Is this for turbo or NA use?

Was just wondering if my questions above were totally irrelevent or not?

[freak power]

Is this for turbo or NA use?

Was just wondering if my questions above were totally irrelevent or not?

Both

The standard management should cope, a remap will help make the most of it.

Any performance modification to a engine will affect low end torque on a n/a engine

[Smo]

Any performance modification to a engine will affect low end torque on a n/a engine

In a negative way? Or positive?

Sorry if that sounds stupid, but I was always under the impression that a smaller throttle body was better for low-end torque...

[freak power]

Any performance modification to a engine will affect low end torque on a n/a engine

In a negative way? Or positive?

Sorry if that sounds stupid, but I was always under the impression that a smaller throttle body was better for low-end torque...

And your right

A negative way

Also looking at a VW throttle body as it runs 2 one small for round town and when you put your foot down the 2nd one opens

[ScottP]

205 boys put the V6 VW/Audi throttle bodies onto Mi16 engines, both have the double butterfly thingy as standard but the VW one is miles bigger with the scope for a bit of porting too!

I THINK my mate who has done this says it gives about 5hp all through the revs and doesnt loose any torque lower down

[Smo]

Is this the sort of thing we're talking about here?

http://cgi.ebay.co.uk/VW-GOLF-GTI-MK2-8 ... dZViewItem

[BUTRE]

Nice and easy mod!

65mm TB can flow air for about 400bhp on a 4cyl NA engine... if the rest of the engine is up to it... the downside is at small openings and low rpm, but at high rpm and WOT it flows well

Every zetec inlet manifold is bad for performance due to the lack of plenum volume... it's volume should be 3 times bigger than std and with proper shape so air flow can be equally distributed to the 4 runners.

This also happens in the FRST and XR2i inlet manifold. No wonders that the new jamsport inlet manifold for the CVH gives to much gains on it's own! Air flow is not equally distribuited, but inlet pulses are way better than std and there is where the gains come from.

[Smo]

Would the Rover inlet, that is often used in the Zetec turbo conversions, see much improvement with an NA setup?

[freak power]

Would the Rover inlet, that is often used in the Zetec turbo conversions, see much improvement with an NA setup?

Yes but they are hard to come by now

[freak power]

Is this the sort of thing we're talking about here?

http://cgi.ebay.co.uk/VW-GOLF-GTI-MK2-8 ... dZViewItem

Yes thats the one, One is 52mm and the other is 32mm

[si 16valver]

now thats a cool throttle body doing what it does and all like the new 5 series bmw sport has twin turbos one small one big work the same the same one is in operation for low revs to spool up the bigger one to obviously reduce lag

[freak power]

I'm going to work on all idea's so keep a eye on this topic as i'm working on the inlet a bit more

[scarlet_pimp_mobile]

The Mk5 RS2000 inlet has the same big plenum for equal distribution like the rover turbo inlet but since I've never seen one on a fez I gather they just don't fit in the engine bay??

[Excursion]

Just noticed, it's spat a rod!

[freak power]

Just noticed, it's spat a rod!

Thats my old ZVH block that went bang, did well with standard rods and ARP bolts at 8800rpm's Just us it as a jig and mock ups now