Internal or External WasteGate?

[McGruff]

Looking into getting a new O2 Housing and Downpipe. I am hear alot of awesome things about the O2 Elminator Housing and Downpipe combo. My question is what is better? and Internal Wastegate or a External? Pros and Cons of both?

thanks.

 

[L2RTSiAWD]

What turbo are you going to be running?

Later,

 

[McGruff]

looking at a big16g i just want to beat some of the cocky mustangs that run around here. nothing to special just wann run mid 12's or so.

 

[L2RTSiAWD]

34mm internal gate is fine on that turbo.

Later,

 

[Violater101]

Without seeing your mod's which arn't listed, if you aren't awd, then you will have more trouble getting into the 12's than you think on a Big16G, not that it can't be done. Usually with that setup, you use a internal wg.

 

[McGruff]

I am sorry i ment to say mid 13's to low 13's...12's are outa my league for right now. Thanks The internal waste gate i guess is better so i dont have to worry about buying another part. THanks

 

[mike9146]

My Big 16 w/34mm internal holds 11psi with no creep on a full 3" system. No problems.

Mike C.

 

[RedTSiAWD]

Originally posted by mike9146
My Big 16 w/34mm internal holds 11psi with no creep on a full 3" system. No problems.

Mike C.

need some clarity on this topic....

if i were to go w/ that setup above......and i have a mbc or ebc...are there any possibilities for boost creep? i would really appreciate somebody setting me straight...thanks

JD

 

[Black95GSX]

I doubt you'd creep your setup if everything is designed "properly"


Keep in mind AGP's L2R and the FP Green both have the option of an internally gated 34mm flapper...... if it's designed properly, it'll work without creep/spike.

 

[IPT]

I am interseted to hear from anyone with and AGP turbo to see if their internal wastegate works well.

The one on the Greens do not work the best. RObert recommends an External.

 

[Black95GSX]

They work great.

A local DSMer has one, he can run 15psi whenever he wants and can also crank boost up to 22psi and it holds steady on his 3" exhaust (no cat) without creeping.


I'd say that's a good enough test

 

[fast_talon]

I am using an SBR-G50 (www.slowboyracing.com) T3/T4 50 trim, with an internal wg. When I first installed the turbo I had the MBC set to 15 psi and no problems. I am now boosting at 21 psi, and so for the internal WG is working great.

 

[ryan2987]

With the option on the APG Lr2 for the internal 34mm wastegate, will you lose any power or cause problems if i were to turn the boost up to between 18psi-25psi. I was just wondering if its worth going with the internal

 

[IPT]

Originally posted by Black95GSX
They work great.

A local DSMer has one, he can run 15psi whenever he wants and can also crank boost up to 22psi and it holds steady on his 3" exhaust (no cat) without creeping.


I'd say that's a good enough test

Just curious if any one has heard of running lower boost than 15psi.

Again just curious.

 

[Black95GSX]

First off, I always find it funny when people brag about there compressor wheel on garrett setups... when they don't talk about housings or turbine wheels


As far as the wastegate goes.... I think it can go down to 11, but do not hold me to that... why you would want to run lower then 15psi... I'm not sure

An internal wastegate is NEVER going to work as well in a turbo as an external. I dont' care what someone tells you.

Externals just yeild better control, and faster spoolup times.


But yes, the L2R's internal setup does work, and it works well for an internally setup turbo. The local who has an L2R with an internal has no complaints.

 

[IPT]

Originally posted by Black95GSX


Externals just yeild better control, and faster spoolup times.

What would be the definition of "better Control"? IF an internal can let the boost be as low as 11 psi and as high as 30 psi (just pulling this number out of the air). Then is it not controlling the boost? What is better whwn comparing that?

The biggest advantage to the External wastegate is that it has a larger and stronger actuator. That allows the wastegate to open and close quicker. I would imagine that this is what you are talking about when you say faster spool up... Right?

If this is true that question I have is How much quicker would the spoolup be on an external wastegate compared to an internal?? Are we talking about 100 rpms, 200 rpms, 500 rpms.. What??

The point I am making is that for most people and internal wastegate is what they need. They are cheap, some work excellant, and they are hundreds of dollars cheaper then an external setup.

 

[McGruff]

I figured the Internal would be what i need. I am only going to be going to the strip everyonce in a while.. Its primarly a street car. I will Make sure i port around my wastegate to make sure it opens in the full area for maxium peformance. I will leave External setups for the pros

 

[Whistler]

but u guys do have to admit.....external gates look alot better!!!!!!!

 

[RetardedAWD]

My boost is rock steady at 12psi with the 3 inch ss Eliminator o2 and DP on my ported big 16g with 34mm wg mod. It doesnt creep at ALL. I had it set at 15psi but I dont need to turn it up for right now.. it saves on tickets =) =)

 

[rdrkt]

Originally posted by IPT
What would be the definition of "better Control"? IF an internal can let the boost be as low as 11 psi and as high as 30 psi (just pulling this number out of the air). Then is it not controlling the boost? What is better whwn comparing that?

It all depends on what turbo you are looking at. What turbo do you know or have personal expirence with that can hold 11psi with no creep till redline yet still hold 30lbs?