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Posted (edited)

So i have today just changed my stock manifold to a toyo sports manifold, I am still on the stock ct9 turbo however now when the turbo is spooling up above 2k rpm it starts to sound like an aeroplane engine with a very highpitch whistling sound? is this completely normal due to the fact more air is flowing through the turbo now?



Let me know thanks josh



(Just to mention as well i am running BOV delete and a meshed turbo untill i get my FMIC pipe rewelded to change the BOV position as i cannot fit one on at the moment.)


Edited by wakeabby14
Posted

Boost leak, check all your joins on intercooler pipes. Had a similar noise when I fitted my front mount

I will check all the intercooler pipes tomorrow I was thinking it might be boost leak im just knackered and want to sit down haha been a busy day.

Posted

I'm thinking turbo spool is all I can hear

Ill still check all the intercooler pipes tomorrow, Im sure its just because its spooling up faster and going high rpm due to the mani upgrade, I will be putting a JAM plug and play on in the next few days when it arrive should be fun stock ecu atm

Posted

I take it you have a front (behind grill) air filter location

No air filter meshed turbo.

Josh

naaa

open the bonnet and use the butterfly flap shaft and rev it so we can hear it on standstill

( sorry i must of said to do it standstill not driving we cant hear fuck al really while driving )

Will do it tomorrow and update it for you sorry haha

Posted

When it comes to a ct9 a standard ported manifold is as good and if not better in most cases than an aftermarket item. Toyosport manifolds will only wreck your head. Even when you get them to fit right it will crack in shit after a while. Best advise I can give you is to port the std manifold. Costs nothing only your time.


Posted

When it comes to a ct9 a standard ported manifold is as good and if not better in most cases than an aftermarket item. Toyosport manifolds will only wreck your head. Even when you get them to fit right it will crack in shit after a while. Best advise I can give you is to port the std manifold. Costs nothing only your time.

The OEM manifold is the worst that can be fitted, even ported it's still a terrible design! The worst that can happen with a toyosport is it cracking at the collector, hardly gonna trash a head is it???

Posted

The OEM manifold is the worst that can be fitted, even ported it's still a terrible design! The worst that can happen with a toyosport is it cracking at the collector, hardly gonna trash a head is it???

Agree with you on that the port sizes are very small on the stock manifold and restricts flow. A Toyosports manifold will flow much better the cracking issue can be sorted with a simple brace welded in place.

Posted

Oem manifolds are proven.


I have ran several ported ones past 10 years .


Never an issue and making good power .


Toyosport manifolds are complete rubbish . I don't care how free flowing they are I wouldn't use one as a door stop.


Posted

Is the newer toyo sports not decent quality? They look decent from the pics I've seen.

Something tells me 5E Colin possibly got one recently? Could be wrong

Posted

Sorry mate but some of us on minimum wage dont just have £400-500 to spend on a racetech or a wepr manifold and are just doing what they can with the money they have...

You're just right mate, if it does your job that's all you need

Posted

Oem manifolds are proven.

I have ran several ported ones past 10 years .

Never an issue and making good power .

Toyosport manifolds are complete rubbish . I don't care how free flowing they are I wouldn't use one as a door stop.

Lol. What a load of bollocks. The only thing the OEM manifold is proven to do is cause more harm than good! Notice how it's usually ring lands on either 2&3 that go? That's more than coincidence.

Posted

Local car has 290kms on it. Standard unported manifold running 1bar on a ct9 for a long time at least 8 years. Still has the original engine unopened.


Personally I can't fault them. Imo good ported one is as good as any aftermarket one


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