i did the tid mod but i didnt notice any difference in boost i had it set to max on my BC still got 8 from 4-6k then it dropped down to 5 till redline.. i thought you get a 2psi boost through the powerband with this?! Oh well i got it for cheap... also found out why my car didnt idle when it was cold lol had a cracked TID .... damn crack was hidden... bastard! hahah oh well at least my car idles nice now... anyone else did this mod and notice that it didnt increase your boost????

 

In that long (rule breaking) list of mods, you don’t mention what kind of boost controller you have.
I’d say with all those exhaust and intake mods, to still only be making 8psi (dropping to 5psi) means your turbo is completely stuffed. I make 8psi to redline with a cat-back and a filter.

 

The Throttle body mod is VOODOO.

Anyone that has a clean, well tuned car will see no difference.

Anyone that has a noticable difference is inadvertantly cleaning and fixing somthing else in the process of the MOD.

I have yet to see verifyable proof that is a performance gain.

Take a perfect running car, stock TB.
Dyno the thing 3 times.
Then replace ONLY the TB with a modded one.
Dyno the thing 3 times.

See the results.

I bet there is NO difference.

 

i dont think you saw the part that said future mods heheh everything i have is legit if you wanna see pictures illl be more than happy to post them

 

First, he did the TID mod, not the TB mod.
Secondly, nobody ever claimed a huge power or boost increase from doing this, although removal of any airflow restriction will have a some effect. The TB mod improves throttle response, because the secondary throttles open fully the instant you push the pedal, instead of the first set of throttles opening slowly. You can't measure throttle response on a dyno.

 

He does have an S5 so I think he should be boosting higher than 8psi, right?

 

S4 or S5, with those mods, there should a lot more boost. That's why I think the turbo's the problem.

 

This is the "S" shaped TID mod that leaves the two 90 degree bends of the stock piece isn't it?

If you make one that has one 20 degree bend it should really help your top end- if the turbo is in good shape as already mentioned.

 

thats a poopy turbo (IMO)

 

Thats true but I think with an S5 he should get 8# with just an intake. He should definitely take it to a turbo place to have them look at it.

 

from what i have heard is that the TID mod increases your low end but it lowers the very high top end..

 

The Turbo inlet duct modification, as I'm understanding it correctly, makes your air compressor side of the turbocharger considerably more efficient. It should increase the turbocharger's response time (and then therefore the engine's boost curve as well as widened torque curve) and put you into the seat a little earlier on. As far as losing high end power, I doubt thta would happen entirely. Infact, I bet it's the other way around. When I had the stock turbocharger setup w/ some basic mods nearly 4 years ago, I did this very modification and had good results from it.

The Throttle Body mod (the mod that has to do with removing the secondary plates) is more about throttle response than anything else. Now, if you're talking about the real modification to the TBody, then that's something all together different. =)

B

 

Dunno where you heard that but it’s wrong. The benefits are right through the rev range.

 

Correct.

B

 

Well i meant that i heard that it increases boost and low and top end but it has a greater increases on low end boost then it does on the top end...still dunno if thats right though lol...

 

damnit!! if my turbo is blown imma be mad... i should be getting 8psi to red line right? i checked for shaftplay there isnt really that much... but then aigan this is the orignal stock turbo so i should get it checked out.. thanks for the help guys!

 

How many miles on the stock turbo? Have you checked the shaft on the turbo for play? How do the blades on the compressor look? Checked in your IC for oil?

 

So what does the power feel like. Does it feel like an engine recieving low boost?

Maybe the boost gauge is inaccurate. Where is it getting boost/vac info?

James

 

full exhaust, TID, Intake? You should be up closer to 10 - 11 psi with some spikes reaching all the way to 13. I had spikes all the way to 15psi on cold nights on full exhaust and intake on a S4 turbo but thats because the wastegate on S4 is