External Gate Options

[BLACK92TY]

Finally about to get the Ty out of hibernation this weekend and I'm already losing sleep thinking about boost creep.

Hopefully it was just a glitch last time I had it out but I'm thinking that won't be the case. As always.

Truck was tuned and running strong before I ran into the boost creep brick wall last time. I've done lots of searches and the recurring theme seems to be external wastgates.

Issue is I'm running the stock turbo. Do guys actually do that? How does that work with the stock internal wastgate then?

I'm trying to buy time before another upgrade. Was gonna just order a cheap bolt on turbo from RPM since I'm still running the stock T/C. But then I saw that too has an internal gate.

Any suggestions? I know people are gonna be on me about racing and I can't give them the benefit of the doubt running them while I'm wounded! Any suggestions would be appreciated.

 

[Syclone22]

Re: External Gate Options

Will you be replacing your stock turbo these come
oem with a actuator gate and is set for 1 bar spring
pressure but can be raised with a manual or electronic
boost controller i have never had any issues with my
Tial external wastegate .

 

[dgoodhue]

Re: External Gate Options

What are your performance goals for your Typhoon? I wouldn't buy a new turbo just to solve the boost creep, ie do you even want a bigger turbo?

Do you have a catalytic converter? How much is your boost creeping to? Also not all internal wastegates have boost creep, if combination of exhaust housing/wastegate and actuator are properly sized it shouldn't be an issue.

 

[BLACK92TY]

Re: External Gate Options

I thought some boost controllers couldn't even solve the creeping issues from the material I've read. Is this true?

And yeah I'd like a better set up than the factory turbo. I should've clarified I was trying to buy time before I need to do things like turbo swap, A2A, converter etc... I could've expanded a big more I suppose.

Truck has Digs 17 in 1 chip. He did wonders with his tune. I'm thinking there's just only so much this little Mitsu turbo can handle. The motor was reworked s few years back. 4 bolt mains, new crank, forged Eagle H Beam, Forged SRP pistons, L35s, custom cam around .600 lift or so (i cant remember now) 60lb inj, CAT delete, stock trans, Usually run about 20psi maybe 22psi at the track.

Overall performance goals are to get this thing to run like AutoAddictions Truck But that won't be for a while due to funds!

Id like to get it into low 12's, ideally high 11's. But I know shaving even something like 6/10ths is a lot of work. I really was looking into RPMs bolt on set up which gains were only like 40hp but I'd just like to turn key and go. Next year I can start pulling shit apart, this year I just want to cross a few buddy's off the checklist.

 

[BLACK92TY]

Re: External Gate Options

The creep was up to 30psi...

 

[dgoodhue]

Re: External Gate Options

8-10psi creep is a lot. The better heads, cam and free flowing exhaust is adding to the stock turbo wastegate issues. You can add an external wastegate on the crossover pipe. I don't have any experience with them but for others it has seemed to work. You could use that external with other turbo as well for future upgrades. I don't recall any ever going that fast with the rpm bolt on turbo's so I am a little skeptical that it would hit the high 11's that you are looking for.