Saturday, October 30, 2010 - 06:29 pm, by: Chris Milner(Milnuts)
Hey guys just wanted an opinion on turbo choice, i was going to go with twin kkr300's on a twin turbo manifold from noz, but a mate had offered me a set of tdo6 16g for 150 each in good condition. A 16g is pretty small in a tdo6 compared to say a 20 or 25g. any guesses where i'd be seeing boost? as long as it's before 4000rpm i think i'd be happy, would be some good top end power to be had..
Sunday, October 31, 2010 - 10:10 am, by: Cihan Aday(Cihan)
You're better off with a GT35R or a single TD06 with larger rear. Little point in doubling up when the head flow or intake dynamics aren't there to support that much compressor. Power will go backwards..... not forwards.
Monday, November 01, 2010 - 08:26 am, by: Harley Jones(Dvjzz30)
im gonna be honest here, the best thing I think you can do is go to a single gt3082, the 3082 is MUCH cheaper than the 35r and a million times more responsive.im making around 440 rwhp out of 22psi from a gt3082, an emanage ultimate, slightly bigger fuel pump and adjustable cam gears.and im only just touching the turbos efficiency range there. the turbo is tonnes more responsive than the twins with much more power to be made if i upgrade my fuel system to support it, and in second and third (r154) it just lays thick black lines as long as you like if you actually plant your foot into the floor.
Monday, November 01, 2010 - 05:46 pm, by: Chris Milner(Milnuts)
Ive just seen alot of guys go big single and go slower down the track, im running 12.50 with stock turbo's and around 330rwhp so i want to see a good power increase over what i have now, that's what lead me down the twin set up, the manifolds are the same price and it's somthing different to all the 35r soarers and supra's. i can get a set of kkr's for under $1400 brand new with warranty, i cant see why this wouldn't give me 400-450 rwhp? guess i just wanted to do something different.
Monday, November 08, 2010 - 01:40 am, by: Costa Tsimiklis(Driftshop)
GT3082 maxes out the flow at around 52lbs. More responsive, great for a zippy track car, but not for all out power or mid-top end.
GT3582R with a custom manifold and V-Band rear housing will give you the best setup out of a mid sized turbo.
Twin Turbo is twice the headfsck and to be honest, not that great when you have a well sorted single. I wouldnt touch T3GS or Steel Wheels / BB Highflows unless I wanted a stock looking setup. Yes they are a torquey linear setup, but I just love the boost hit and external gate of a well sorted single or even a laggy big single. Nothing Beats it!
My advice to you is as follows for maximum response for the street and good potential up to 350-400rwkw (pushing it the limit at 400rwkw as the turbo only flows 65lbs max) with supporting mods:
Garrett GT3582 Turbo 0.84 TIAL rear housing (V-Band) Merge Collector 6-1 manifold to suit v-band setup from 6 boost or myself (soon) Tial MVS 44mm Wastegate 4" dump pipe to cat 4" intake with large K&N Filer Oil/Water lines to suit
If you want to sacrifice a bit of lag for more top end, T04Z would be the next step up for a 400+ rwkw setup on pump fuel on a 1JZ or 1.5JZ. 70lbs compressor flow and around 500rpm more laggy than a GT3582, but the boost hit is more fun
If you want full boost at around 4000-4500rpm, GT3082, GT3582 or T04Z will do it.
Ofcourse, you need at least HKS 264 or 272 cams + Injectors + ECU + intercooler and exhaust mods to make this all work well.
Monday, November 08, 2010 - 09:07 am, by: Jeff Bedsor(Jeff_bedsor)
Costa Tsimiklis wrote on Monday, November 08, 2010 - 01:40 am:
not that great when you have a well sorted single
I think that's the problem with a lot of single setups(they are not setup properly), they cost a fortune and at times deliver way lees power than can be achieved with the stock twins.
Tuesday, November 09, 2010 - 10:19 pm, by: Sebastian Grant(Saabg)
I have t3gs in my car (waiting to be tuned) and I love them as my car is a daily. Great response and from what Cihan has said can net 300rwkw with the right supporting mods. How can you possibly put 400rwkw to the ground through street tyres anyway?
Mark Pattel TryHard Queensland RT142 with a 1jz and R154 5 speed
Thursday, November 11, 2010 - 08:45 am, by: Jeff Bedsor(Jeff_bedsor)
It's like the skylines at the drags, while they're still spooling it up I'm just going over the finish line. 400kw isn't much good except in a straight line anyway, even mine with about 300 is scary when it comes on boost hard in a corner.
Thursday, November 11, 2010 - 11:06 am, by: Danny Dinh(Xtc)
300rwkw is more than enough for a street car. At this power level lag is acceptable, response is good, strong midrange and good topend. Mine is just a tad over 300rwkw and it's scary especially with auto transmission.
Thursday, November 11, 2010 - 03:12 pm, by: Harley Jones(Dvjzz30)
Sebastian Grant wrote on Wednesday, November 10, 2010 - 05:34 pm:
It's not fun when you get blown away at the lights by a taxi while you're waiting for your turbo to spool up though.
On the autobarn I'd love a dirty great big laggy turbo but on our roads in my opinion a more responsive setup is the way to go.
sorry if im incorrect, but it sounds as if you have never really owned or had much experience with a big ball bearing single, as i have already stated my 3082 is MORE responsive than the standard twins, people talk about "full boost at 4500" with singles, well thats usually 22-25 psi, keep in mind the twins dont get to 18psi by 4500, the perfect example i think is my 440rwhp 3082 that is in full blown wheel spin by 3800 if you mash the foot to the floor in second. how can this be considered laggy if your making enough torque and power to completely break traction (in a straight line)on a set of 265 35 18s before the standard twins would have even made enough power to pull the skin off a custard?
and yes 300rwkw/400rwhp is MORE than you will ever need in a street car the size and weight of a soarer. i have to be extremely careful in second or third to avoid stupid amounts of wheel spin if im getting right up it.
its not like the days of your big thrust bearing turbos that are laggy as and flow a moderate amount, todays ball bearing turbos have changed the game completely, you can have a huge turbo that flows rediculous amounts of air and is still super responsive.
Thursday, November 11, 2010 - 03:19 pm, by: Harley Jones(Dvjzz30)
just want to add, i really dont want to sound like a smart ass, or sound rude, its just that i used to think and say that kind of thing alot before i owned a 1j with a decent size ball bearing single on it. its only since ive built this car that i have actually realised just how incorrect i was before, and howmany people i must have been leading the wrong way with my uneducated opinion. now im just trying to state the facts according to my experience.
Thursday, November 11, 2010 - 11:13 pm, by: Harley Jones(Dvjzz30)
effed if i know, i play with manuals . i cant stand driving autos....all im saying is that a single like a 3082 comes on boost earlier, builds boost alot quicker, and ultimately flows craploads more than the old twins ever EVER could. another great example is my mates aristo with a gt44 on it, it was more responsive and more drivable, AND saw boost earlier in the range with that big sucker than it was with the stock 2j twins. big singles being super laggy is a thing of the past. as i said BB cores have completely changed the game. now you have response and big flow in a single. i took the car out for a cruise to check out some extensions done on a shopping complex near here tonight, and i was casually accelerating taking notice of what kind of boost the car was making under what situations. and i was seeing around 5psi between 2500-2800..just casually accelerating through the gears. trust me, atleast with a 3082 (speaking from personal experience is the reason i keep referring to a 3082) it is rediculously more responsive than the twins ever were. that leads to a car that produces smoother, stronger low end and mid range power, and an incredible tsunami of torque and power when the turbo enters its efficiency range (18+psi)
Friday, November 12, 2010 - 12:01 pm, by: Harley Jones(Dvjzz30)
my mistake sorry sebastian, sorry. a mate had a t04z on his 1j for a while, but he took it off and replaced it with a 35r, i think it had something to do with the t04z being damaged though.
Friday, November 12, 2010 - 01:18 pm, by: Ron Bassett(Ron)
How about some Japanese info from the Soarer professor who ran 330 KPH and 10.277 sec quarters in a modded Soarer(he had about 5 or 6 turbo combos in this car)0-300 KPH in 29.9 secs.... and 347 KPH in a modded 6 speed Supra? His road car is an auto JZZ30 running modded twin OEMs at 20 lb and netting just over 300 rwkw...nothing special there but it is his road car. He has videos of it doing 269 KPH (speedo at 180) and drives the freeways at 200 KPH mostly....
Friday, November 12, 2010 - 01:41 pm, by: Ron Bassett(Ron)
Figures with turbos on the Soarer with 3.1 L T-51S/746 ps T-88/827 ps T-51R SPL / 891 ps Twin GT-3037S /961 ps Just google the ps to kw to get what means sense to you...... He won the BBS wheel design comp in Japan and was person friends with the CEO of HKS....
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