Surge Holes In T88

[high_hp]

hey guys i have a 33gtr and i want to drill some surge holes in my turbo ,,,,,its a t88-34d mostly want it done for the sound it will make can u guys please help

[bigmikespec]

Unless it surges don't do it... Surge holes/slots will reduce the compressor efficiency higher up.

[R31Nismoid]

hey guys i have a 33gtr and i want to drill some surge holes in my turbo ,,,,,its a t88-34d mostly want it done for the sound it will make can u guys please help

Just get a drill out mate, space them so you can fit around 8 holes in if you want great sound.

[high_hp]

my turbo does surge i dont have bov is there any websites i can look at to give me more of an idea on how to drill and were to drill in my t88

[JonnoHR31]

A BOV has nothing to do with surge, a BOV prevents flutter which is very different.

[R31Nismoid]

my turbo does surge i dont have bov is there any websites i can look at to give me more of an idea on how to drill and were to drill in my t88

That's just the external wastegate fluttering, don't worry about it.

[high_hp]

arhhhhhh rojor my turbo does surge through any help on websites on how to drill them would be great guys

[high_hp]

my gate is a 60mm hks

[wolverine]

Just get a drill out mate, space them so you can fit around 8 holes in if you want great sound.

That's crap Nismoid....

.......you need at least 10 if you want the sweet sound.

[high_hp]

lol how and were to drill on the t88-34d

[mico]

Unless it surges don't do it... Surge holes/slots will reduce the compressor efficiency higher up.

riiiight, so u have tried and proven this then ?

[high_hp]

That's just the external wastegate fluttering, don't worry about it.

do u know of any websites mate

[Dobz]

The best way to do it is to not do it.

Why do you want to mess with a turbo's performance just to try and make it sound like a vacuum cleaner?

[scotty nm35]

That's crap Nismoid....

.......you need at least 10 if you want the sweet sound.

Lol.

Anyway Sam, the holes aren't drilled right through, they go down to a slot which has to be machined in on a lathe, at the height of the lower compressor blades. Perhaps Hypergear could get the slot and holes machined for you? Or can you use a gt35 front and bore it out? I've got a chinese .7 surge ported one here you can buy cheap.

What it will do for performance is anyones guess, do you have surge at the moment you're trying to get rid of or is it purely for the noise? Perhaps a folded gum leaf in front of the compressor would work well?

[JonnoHR31]

riiiight, so u have tried and proven this then ?

It's a well proven fact that surge slots SLIGHTLY increase lag, they are used on turbos with compressors that flow a lot relative to the turbine side as they are at a higher risk of surge than other turbos. You can't just drill holes in your turbo and expect it to work just like surge slots, it simply won't!

Are you 100% sure you know exactly what surge is and that your turbo is actually surging? If it is the easiest fix (albeit not ideal) is to make it slightly lazier coming onto boost.

[hypergear]

I've tested it person that anti surge holes would reduce power to boost ratio and increase lag. I wouldn't run the anti surging setup unless it is surging, and the last thing I had to do to overcome this problem.

[Guilt-Toy]

hahhahahahahahaa

That's just the external wastegate fluttering, don't worry about it.

[high_hp]

thanks guys

[DVS JEZ]

That's just the external wastegate fluttering, don't worry about it.

Yeah i hate when this happens

[GTScotT]

...... blatant troll, or dead T88?

who cares, the admin/mod dont!