Sequential or TTC?

Been having problems with intermittent boost for a while now and tried 5 min TTC mod to see if it was one if the VSV's that was cooked (even though I done continuity checks and they seemed fine). The car boosted to 1bar no probs and I must say I was quite surprised with the power delivery it gave but at the same time was pretty loud so the neighbours might not be best pleased.

I am considering keeping it in TTC mode but reckon there must be a proper way to do it as I only put the vacuum hose straight onto the actuators therefore eliminating the VSV's. Would this be the correct way to do it long term?

Also is it safe enough running in TTC? I don't see how it could do any damage as its still boosting the same.

Any info would be appreciated

Have you read this thread? some info on it

http://www.mkivsupra.net/vbb/showthread.php?t=136239

Have you read this thread? some info on it

http://www.mkivsupra.net/vbb/showthread.php?t=136239

Had a read through that earlier some good info

is there some guide to setting the car up in TTC ? is it easy may like to try this myself i suppose its like having a little single turbo

http://www.internetwork.org.uk/ttc/ttc.htm

This is how I carried out the TTC mod to test if the VSV's were fooked...is this the same way it would be done if I was wanting to stay in TTC mode long term?

is there some guide to setting the car up in TTC ? is it easy may like to try this myself i suppose its like having a little single turbo

Here it is mate...it literally takes 30 secs to do and I must say...I like it ALOT better!!!

just read through the thread and the guide for TTC but cant see if TTC would maybe have some negative effects like damaging the turbo's ? anyone on here done TTC ?

many thanks

I ran TTC for ages before going single and loved it!

I think it's a personal taste; some people like the sequential delivery, some the more linear TTC; for me it was the latter.

One by-product of permanently going TTC is that you can remove the actuators, the vacuum tank and all of the associated vacuum hosing; it really cleans up the engine bay

Here it is mate...it literally takes 30 secs to do and I must say...I like it ALOT better!!!

Cheers bud !

I have been a long time advocate of TTC mode, and ran my car this way most of the time i have had it, both with std turbos and hybrids.

To do it properly you need to wire open both the EGCV and the IACV, and to really take advantage of it i would also use some form of piggyback ECU.

It will actually equalise the wear on both turbos as its not just no1 working most of the time.

I have been a long time advocate of TTC mode, and ran my car this way most of the time i have had it, both with std turbos and hybrids.

To do it properly you need to wire open both the EGCV and the IACV, and to really take advantage of it i would also use some form of piggyback ECU.

It will actually equalise the wear on both turbos as its not just no1 working most of the time.

How exaclty do you wire them open?

I ran TTC for around a year to get round a boost problem which turned out to be an easy fix in the end. I thought it was crap, no power low down and annoying loud with decat and Nur spec, even at idle.

How exaclty do you wire them open?

Stick a bicycle pump onto the IACV and EGCV actuators and pump them fully open. Then wrap wire around the linkages to keep them open.

I think TTc is a good idea and will save you fuel if your not in turbo at low revs

Stick a bicycle pump onto the IACV and EGCV actuators and pump them fully open. Then wrap wire around the linkages to keep them open.

I just took the actuators off to avoid screwing them up by having them continually open and the diaphrams under constant strain;)

TTC is very much a matter of taste, and it will also depend on everything working properly, it will show up shortcomings in the exhaust system, and as i said to get the best out of it you need to adjust the fuelling and timing;)

TTC is very much like having a small single, so boost is somewhat later in manifesting, i suspect that those that don't like TTC will not really like single turbos.

TTC is very much like having a small single, so boost is somewhat later in manifesting, i suspect that those that don't like TTC will not really like single turbos.

Like the sound of it, would love to go single one day iam going to try the TTC out next week

http://www.internetwork.org.uk/ttc/ttc.htm

 

This is how I carried out the TTC mod to test if the VSV's were fooked...is this the same way it would be done if I was wanting to stay in TTC mode long term?

There was me thinking it was my help that got you there through PM

I'm going TTC mode when done fully, will be doing as Ricky suggests though. It can't be good having the actuators under strain.

There was me thinking it was my help that got you there through PM

 

I'm going TTC mode when done fully, will be doing as Ricky suggests though. It can't be good having the actuators under strain.

It was your instructions mate but just to save typing what I done I thought I would refer to that link. Good instructions

It was your instructions mate but just to save typing what I done I thought I would refer to that link. Good instructions

I'm only playing bud.

The only problem i had when following that guide was that the pics seemed a little misleading even though they were correct. I posted up a thread on it a while back as it appeared to be pointing to the WGVSV rather than the EGCVVSV but it was all cleared up in the end.

You know your way around the turbo's so i thought it was better to mention the actual names of the components being worked on rather than linking you to that guide. Didn't want you to pop anything else

Another advantage to going TTC permanently is you can remove all the VSVs and the rats nest of piping, provided your running an aftermarket boost controller;)

Another advantage to going TTC permanently is you can remove all the VSVs and the rats nest of piping

Oooh dejavu!

Cant remember who but someone ran ttc, and got ryan g to map it correctly with a power fc, Ryan found that he could play with the timing alot more in ttc mode and yielded an impressive hp figure ( 425bhp iirc) on a bpu supe

Ryan's going to map my BPU VVTi with the Solaris in TTC mode. Be interesting to see what he can give with that setup.