What does an external wastegate do differently to a stock internal one?

[4bella]

Just wondering wat does upgrading to an external wastegate do to a car from the stock internal one? Does it make a different sound? what does it actually do? will the flutter sound, sound different?

[Guest Mashrock]

there isnt much point doing it to a standard turbo which already would be internally gated.

but with larger turbos it controls boost alot better i think??????????

i dont think there is any sound difference at all.

unless you rep a screamer pipe.

[doridori32]

Internal gates are useless.

Probably limit you to 1bar boost, and also they like to spike and play happy games with you on EBC's.

They are around 20mm MAX. whereas a external gate can go as big as 60mm.

I use a 35mm gate on our race car.

No spike, nothing

Cheers

[pnblight]

Internal gates are useless.

Probably limit you to 1bar boost, and also they like to spike and play happy games with you on EBC's.

They are around 20mm MAX. whereas a external gate can go as big as 60mm.

I use a 35mm gate on our race car.

No spike, nothing

Cheers

yet again a quote from a genius well anyone running a hks2835pro cant run more than bar you reckon thats funny i seem to remember there happy to at least 1.7bar ,god i can run 1.5 out of my 320hp garretts no problems(525rwhp) so i dont know why internals cant run more than 1 bar.

The biggest advance with running an external wastegate over internal is it can reduce manifold back pressure and flow higher volumes gas. but most internals wastegate are well designed for the turbo there fitted to (in unalter state)and can produce good reliable hp. HKS,TOMEI,GARRETT etc etc do know how to design turbos and dont make as the quote above a useless waste gated turbo

:kick:

[Guest Mashrock]

i used to run my t28 off my gti-r at 1.5 bar with no problems of boost wandering all over the place.

this is with internal gate. but my guess your using much larger turbos?