ok now i know the best bov for evos under 400whp is the stock ix dv. however, i'm planning on getting the ets intercooler kit with piping in the near future and i have a 50mm tial bov that's been sitting around my house for over a year. i know ets offers the stock dv flange on the piping but i have bigger plans in the future and i would rather get it flanged for the tial now and not have to deal with it again in the future.

so my question is:

on stock ecu, will it be safe to run a 11psi tial bov on stock turbo with the ets intercooler kit? and when i mean safe, i mean no compressor surge, creep, etc...

if 11psi isn't the best choice, then should i go higher or lower psi springs?

and please...i'm not looking for "stick with your stock dv" responses...

thanks in advance

 

i would stay with stock or a recirculated valve. when you release the air into the atmosphere, the MAF has already accounted for it in the system, and then when you release it out, the computer has already added the fuel needed for the amount of air it had. So it runs rich and has the possibility of stalling.

 

well if you get it tuned afterwards, there shouldn't be a problem with stalling or rich afr, correct?

i mean...it seems like all this talk about aftermarket bov's messing with the ecu and whatnot could easily be cured with a tune

 

I agree^^^^, not good to use if you still have a MAF.

 

Wondering the same....

 

that's what i'm trying to figure out...

i appreciate all the answers but i'm pretty deadset on getting the piping flanged for a tial bov. i know a friend with a turbo xs bov on his stock ecu ix and he said he hasn't seen any problems whatsoever

so will a tune cure all the symptoms of an aftermarket bov on stock ecu?

 

Reduce complexity and use a stock or recirc BOV. Sneeze loudly between shifts if you must.
Doug in San Diego

 

what is so complex about all this?

thanks for the meaningless post

 

I have a Forge RS BOV, and I bought the stuff to make it VTA.

It ran fine, its just whenever I let off the gas it would buck for a second, or sound like it was getting flooded.

It just got annoying and wasn't worth it for the sound, though it did sound good.

Needless to say, my car ran much smoother without it, so I just switched it back to recirculated.

 

Ive seen some guys with BOV and no problems, but lots of people do have problems.

 

no, it will not cure it, the main place that you will see a problem is it goes extemely rich shile shifting. I know where you are coming from as the first time I ordered ic piping I wanted the Tial. i ended up going with a Forge stock style and was very happy I did. it still ran perfect and handled 25+ psi. Then when i went with the build I upgraded to an AEM EMS and the Tial. There is a time and place for everything. dont cheap out just because you have it laying around. You and your car are better off if you use the correct parts.

Just stick with stock style until you go to a standalone or a blow-thru set-up. then get the tial. Its not really that hard to put a new flange on if you know a good welder.

 

its a hit and miss situation. but there are alot more missed with things like bucking and stalling then there are success stories with VTA BOVs.

 

finally i start getting some straight answers...i guess what i'll do is buy the kit flanged for the tial bov but when i install it, i'll just leave in the stock upper pipe. i'm pretty sure the stock pipe will fit the 3.5 core

thanks for the help

 

This is exactly what is so "complex" about it...ECU can't guess how much air is being let off with the VTA BOV...all is see's is a vacuum/boost leak. Just like Celica2EVO said, it will run rich and could stall. A friend of mine put one of these on his VIII, no issues at first, now it bogs when he shifts and sometimes stalls when coming to a stop.

You can't accurately tune for a vacuum/boost leak, sure you can make it more liveable but you won't be able to fully get rid of the problem.

 

hmm...what exactly do you mean by "liveable"? like i said, i'll just get the pipe flanged for the tial. i'll try it out to see exactly how bad it is and, if it is as bad as you guys say, i'll replace it with the stock upper pipe and keep the stock dv. maybe i'll be one of those "success stories"