Saturday, April 18, 2009 - 04:18 pm, by: Michael Bradshaw(Bradsm01)
yo
just got my soarer 91GTTL pretty sure my turbos are running factory boost, which i assume is around 7psi...want to increase to around 15psi. do you have to install an electronic boost controller for this (even if i want to keep it at 15psi permanently). i really don't want to play around with the wastegate actuator in case of explosion..hehe any ideas? needs to be cheap cause i very little monies
Saturday, April 18, 2009 - 04:24 pm, by: Michael Keen(Spoilt)
i would not raise boost to 15psi, with out the help of a cooler and exhaust. but yeah boost controller is pretty much the only way. with out changing actuators. to some other kind
Scott Wilkes TryHard Tasmania 92 TT Factory Manual
Saturday, April 18, 2009 - 04:41 pm, by: Scott Wilkes(Scottywilkes)
if you have very little money i wouldnt be raising the boost until you can afford to replace the turbos should they blow.
Going past 14PSI will require a FCD (fuel cut defender) otherwise you will hit boost cut which isnt a nice experience haha.
The standard turbos have ceramic exhaust turbines, they cannot take alot of boost, some people have luck, some dont. A cooler and a good free flowing set of dumps will help keep the turbos in good health but its hit and miss with the CT12s
Saturday, April 18, 2009 - 05:14 pm, by: Mike Dobkin(Razman)
With an FMIC, free flowing exhaust and dump pipe fitted you will probably find that the baseline boost will go up to around 15psi without a boost controller (mine did). You may even have to fit a restrictor ring to stop it going higher in cold weather. Either way you will need an FCD to stop fuel cut at these boost levels.
Scott Wilkes TryHard Tasmania 92 TT Factory Manual
Saturday, April 18, 2009 - 05:40 pm, by: Scott Wilkes(Scottywilkes)
daniel im not saying all of them fail, your car is a testiment to that, but considering he said he has very little money, if the turbos do blow, hes gonna be kinda in a pickle.
Im on .75 bar of boost with just a FMIC and catback system, got highflow cat, dump pipe and 3 inch midpipe to put on soon so i can see it going up in boost considerably, im gonna need a FCD LOL
Saturday, April 18, 2009 - 05:53 pm, by: Michael Bradshaw(Bradsm01)
thanks guys.
so it looks like i'm stuck with factory boost until I can afford:
fuel cut defender ($200 ??) front mounted intercooler ($900 ??) electronic boost controller ($300 ??) the exhaust may have been already upgraded, the chick i bought it from knew pretty much nothing about the technical side if the car. It's got some oval-ish twinnies on the back - i assume they're not stock? don't know about dump pipes, cat. etc. but prob have to upgrade that as well ($???)
oh and the possibility that the turbos will blow ($5000) so, maybe i'll just stick to stock. I'm pretty happy for now
Saturday, April 18, 2009 - 06:36 pm, by: Rob Rojo(Rob_tt)
Daniel Clarke wrote on Saturday, April 18, 2009 - 06:00 pm:
FCD is about $70 , FMIC , just grab 1 from Justjap @ $ 450 or so . EBC bit more like $475 or so.
For under 1k you can have 14psi with fmic and enjoy it very much so .
Agreed, but if you want to save quite a few dollars just get a manual boost controller (bleed valve). The only down sides to the manual boost valve is that it will spike 1psi or so and won't reach full boost quite as quickly. Upside is they only cost around $50.00 on ebay and take only a few minutes to connect.
Sunday, April 19, 2009 - 10:46 am, by: Rob Rojo(Rob_tt)
In one of my old Soarers I ran 14psi with everything else completely stock for 2 years until I sold the car and did not have a problem. I think it comes down to how you drive it as well if you just give it the occasional boot full its not so bad but if your taking it to a track where your constantly giving the car a hard time I say a FMIC would be essential but either way its a good investment and you don't need to spend anymore than around $500.00 for a kit that will do the job.
Sunday, April 19, 2009 - 02:30 pm, by: Bobby Green(Nash)
$30 turbotech manual boost controller on eBay. I fitted one to my starlet. I didn't even wind any more boost in it but it hits full boost so much faster than before. Should work a treat on any car running smallish stock turbos.
Sunday, April 19, 2009 - 03:41 pm, by: Michael Bradshaw(Bradsm01)
cool thanks for the input guys. to sum up: 1. you don't need a FMIC, but it's a good idea to have one anyway (i'm hitting the boost fairly often just on the streets - i would never take my baby to the track..hehe) 2. a manual turbo controller is the cheap and easy way to go - don't know how reliable it is and why it hits full boost quicker though. 3. i will need a fuel cut defender no matter what i do 4. upgraded exhaust management is expensive and debatably necessary
i have no experience/knowledge with doing anything mechanically with cars, so fitting anything myself isn't really an option. prob take it to hollywood joe?
Sunday, April 19, 2009 - 11:17 pm, by: Michael Lucas(Mickoin)
i've heard the stock exhausts can do pretty well - you'll only gain a max of 6 to 10 kW by going after market. So i've been told. Just a thought, though if it's cods wallop and/or you really want that 6kW and can afford an after market exhaust then go for it
Sunday, April 19, 2009 - 11:26 pm, by: Rob Rojo(Rob_tt)
I totally disagree. I think the factory exhaust and cat are the biggest restrictions on a TT Soarer. Gains when running low boost may only be as you mentioned around 6-10rwkw but when running around 14-16psi boost the power increase of a good 3" into twin 2.5" system would be at least 20rwkw. After fitting a decent system boost will jump up from 2-4psi just with the increased flow.
My car had an "aftermarket" system on it that was very poorly made and would not make any more than 220rwkw, when the system was upgraded and retuned made 254rwkw running the exact same boost.
Monday, April 20, 2009 - 10:45 am, by: Michael Bradshaw(Bradsm01)
well apparently the people i bought it from have the dyno sheet which shows it puts out 230rwkw. hoping it's higher than 150kw, seeing as it came out of the factory at 206kw. I'm pretty sure based on what you just said about aftermarket exhaust power increases that mine must have one fitted (the twin ovals aren't stock)
Monday, April 20, 2009 - 11:31 am, by: Rob Rojo(Rob_tt)
Your car won't be putting pout anywhere near 230rwkw running stock boost. That sort of output requires at least a piggyback ECU lots moore boost, high flow cat and a good free flowing exhaust. Stnadard output is 206kw at the flywheel which is usually under 150rwkw.
Andrew Stewart TryHard Queensland Manual GT-T VVT-i Single Turbo
Monday, April 20, 2009 - 01:58 pm, by: Andrew Stewart(Daboom)
Michael, If you want to save a bit of money doing your mods, go to secondhand import yards. We have a few up here in QLD, and from my experience with them, you can pick up decent stuff (may be a few years old) but it is brand name, good quality suff for really good prices. A recent example i had was i picked up a practically brand new Cusco Strut brace for a JZA70, which turned out to be a direct bolt on for $150, which when i purchased it, the Yen had died. so check those places spend a good time sifting through stuff, coz the ammount of good stuff you find, it is worth it. Then just offer the person an ammount you are willing to pay and most of the time they will come around and you will get a good deal for the lot
Also, you will find, you will get a quite decent streetable increase in power with a full exhaust system (dump pipes to mufflers) and a good intercooler. with my car, i measured 180.5rwkw with exhaust, pod and intercooler. that's it. not boost controller or piggyback ECU. so depending on what you are chasing (street power, Dyno Queen power, or track power) that is where you are going to be finding your money going. I'm happy with mine coz it beats our rivals, the Lineskies
Monday, April 20, 2009 - 06:51 pm, by: Blake Gloyn(Blakenz)
There is up to 40 rwkw hiding in the factory exhaust system. not all cars will gain this much, but some can. My own car gained 11rwkw when i replaced the rear mufflers with straight through ones. then a further 20rwkw when i did a full exhaust from the factory cast dump pipe. Add Dump pipe gains on top of this....
Monday, April 20, 2009 - 07:22 pm, by: Michael Bradshaw(Bradsm01)
i'll get in touch with the guy who i bought it from and try to get him to find/send me the dyno sheet. maybe he means 230kw at the flywheel then. an upgraded exhaust by itself should be able to give that, he also said that the turbos might have been replaced in japan with steelies, with naturally higher boost, although this is hard to believe given the extemely small amaount of lag in the turbos...
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Pretty simple stuff, all bolt up and wire in kind of stuff.
