Friday, November 12, 2010 - 05:04 pm, by: Sebastian Grant(Saabg)
Harley, when I get my car tuned would it be possible for you to take me for a spin in your car? I'm just looking at what options are around once my turbos blow.
Friday, November 12, 2010 - 05:41 pm, by: Harley Jones(Dvjzz30)
sebastian id be more than happy to take you for a spin anytime. re: the 044, i am already running a walbro 255lph in tank job. it supplys more fuel than i need at the moment, i dont really plan on chasing anymore power though. im kind of limited by my clutch and my injectors and i dont really wanna move to a harsh clutch.
Friday, November 12, 2010 - 09:50 pm, by: Rob Rojo(Rob_tt)
As far as responsiveness goes the stockies still win IMO but in saying that I also have a 3082R single now and it is very responsive and not that far from the stockies but there is still some difference. My old T78 was lagey but when it boosted it pulled like a train but as Sebastian said you would get left by a Taxi for the fist 100m then fly by. lol
here is an EVO 2.3L stroker running a 3082R @ 32psi making over 650whp!
Sunday, November 14, 2010 - 02:59 pm, by: Harley Jones(Dvjzz30)
Rob Rojo wrote on Friday, November 12, 2010 - 09:50 pm:
As far as responsiveness goes the stockies still win IMO but in saying that I also have a 3082R single now and it is very responsive and not that far from the stockies but there is still some difference.
rob have you had it tuned for the 3082, are u still running stock cams/timing?
Sunday, November 14, 2010 - 03:09 pm, by: Rob Rojo(Rob_tt)
Still running stock cams but standalone aftermarket ECU, cam gears etc. It hasn't had it final tune yet (just on road tune) but I doubt the final tune will make that much difference to the boost response.
Sunday, November 14, 2010 - 06:06 pm, by: Harley Jones(Dvjzz30)
2 things to note.
1.clutch is slipping at the top, the first dip is where the clutch starts slipping, where it flattens out is where the clutch just wont hold anymore power at all.
2.It needs to go back on the dyno as the operator found out about 4 days after this run that the dyno was reading about 15% lower than it should and it has since been repaired.
Tuesday, November 23, 2010 - 12:03 am, by: Costa Tsimiklis(Driftshop)
HKS T-51S/746 ps - This is the turbo that I had. 0.90 T4 Rear Housing 61mm inducer 84mm exducer comp wheel and nearly the same for the turbine. Great Turbo for what it was, but the thrust bearing gets chewed out on these very easy due to their 90s truck design. 270 deg thrust only
Trust T-88/827 ps - T88 is a great turbo. More responsive than the T51R and has the top end to boot!
HKS T-51R SPL / 891 ps - This is my current turbo. Hoping for 400+ rwkw on pump fuel and closer to 450-500 on race fuel. I'm staying away from E85 for now. Mixed reviews and I really CBF re-doing my entire fuel system for a large cost for a smallish gain considering the retune required. Also the fuel is inconsistent at the pump at some servos I will wait it out. I've custom machined my older T51S housing to accept the T51R larger turbine wheel and it should be pretty responsive now with the setup. I have a 1.20 V Band setup that I will put on the 1.5J or 2J when I get the Supra up and running . I swear by the VBand housings now. They are SO EFFICIENT at that they do! T4 T5 T6 flanges are for big capacity diesel trucks and flow like arse. V Band housings were developed for F1, Rally and Indy car turbos and I reckon that I could get the same spool if not better on a HKS V-Band 1.20 housing w/Merge collector than with my T4 0.90 setup which also has a merge collector. Plus the V-Band setup is about 1/3rd the weight of a T series housing!
For the record, anyone who says "300rwkw is enough for a street car" has not been in a proper sorted 400 rwkw car that will scare the s.hit out of you every time you drive it. It's not dangerous, but more like thrilling as you see the scenery blur once you hit full boost and take off. It's truly remarkable! Well sorted diff, suspension and proper tyres will grip 400rwkw no problem in a soarer. My setup relies on Toyo Proxes Tyres, 16" and 235 or 245 (will check) and bog stock TEMS suspension front/rear. This gives the launch effect and the whole car just bogs down and digs in and takes off. Some say, why not run a 265 setup etc. The real trouble with 265 tyres is there is a reduced pressure on the tyre, due to the increase in surface area, as well as sidewall distortion + flex. I have tested and found that proper 225/235 16" tyres are the best setup for me for a drag car. IF you have slicks or street radials - thew wider the better. But for street tyres that are not drag oriented, surface pressure and the distribution of that pressure into the ground through the contact patch is MORE important than over all width. There is so much -ive camber on wider wheels with smaller offsets that the inner wall to half way in the tred pattern are only used for grip. Where as with a high offset factory wheel - most of the tyre is being put to good use!
Thursday, November 25, 2010 - 11:28 pm, by: Costa Tsimiklis(Driftshop)
I've had the beast off the road for a bit now, sorting out the T51R setup etc. When I drove it daily, it as a tough exercise. Coming on gate everywhere was just too addictive, especially when you needed to teach some ricer a lesson haha.
Big singles have a nice turbo lag band that keeps it very tame under 4000rpm. This is plenty of RPM for daily driving. Give it full throttle and its all on for young and old once that wastegate opens lol. Off boost response was improved by running more timing as well as the HKS cams. I find that it is much more tame off boost than a stock car, but still has the power to boot and get through the traffic when required.
I've made the car a 100% sleeper, with no front mount now and stock everything down to the last detail.
I'm hoping to go all out on the current daily in terms of looks/kit etc, but make it a sleeper with a custom low mount setup that looks like twin ct12a.
Anything around or over 300rwkw is a fun drive either way, but I guarantee that you will want more power later on! Hoping for over 400rwkw now ..... im touched!
Ben Lipman Goo Roo NT Soarer TT manual, plus TT track car
Friday, November 26, 2010 - 01:53 pm, by: Costa Tsimiklis(Driftshop)
You can buy GT35 and GT40 and GT42 V-Band vband flanged turbo housings from Tial / Garrett.
Garrett have just released a GTX range for the GT35 GT30 - giving over 10% more flow across the map and pushing the GT35 into T04Z spec, with 500rpm less lag and even less lag with a V-Band rear housing. In fact, this turbo would totally kick the T04Z's arse in every way and will cost similar money after a V-Band upgrade!
GTX turbos do not come with a rear housing at the moment so you have an option to buy a used one or upgrade to a V-Band setup.
This is truly amazing stuff - If you want a responsive turbo, V-Band Flanged GTX3582 will e the best option on a 1JZ.
Saturday, November 27, 2010 - 08:22 am, by: Ben Lipman(Ben12a)
SO
looking at that stuff, even the GTX3076r with a v band housing would be a great turbo on the 1J given it flows 65lb now?
And as you said, the GTX3582r would be very workable. Would it be fair to say there is some considerable overlap in performance between these two turbos on the side of a stock 1J?
Costa Tsimiklis Goo Roo Victoria 386.2 rwkw Soon T51R or GT4094
Saturday, November 27, 2010 - 08:40 am, by: Costa Tsimiklis(Driftshop)
3076 will be more responsive, but will only flow 5-6 lbs more at around 20 PSI. You really need to run 2 bar or around 30 psi to get full advantage of the 65ls.
A better option would be a GT3582 (not the X version) as this still flows more than the 3076 and you can recoup the response with the v-band setup and it should work out cheaper than the X version, as you will get a discount off the $1650 or so price by not including a rear housing.
At 1 bar flow, the GT3582 flows flows 62 and the GTX3582 flows 68lbs. You want a FAT compressor map so you can get more flow, at more boost levels for a streeter or track car.
3076 till flows 52lbs and 56lbs in the X form.
I know you love the idea of the 3076, but the compressor map is too narrow due to its trim / size. It uses the same rear wheel as the GT35.
Lets see at 22psi, 1.5 bar, the GT3582 flows 68lbs and the GTX3582 flows 74lbs (!).
At 22psi, the 3076 flows 55 and the X flows 62.
You need to work the 3076 compressor harder which equals more heat in the intake charge, to make the same flow vs pressure than the GT3582 setup. 3076 is more suited to a 1.8-2L setup that needs a lot of boogie, where as the 35s are suited to 2.5-3L and have a wider flow range over all boost pressures due to their compressor size. The GTX3582 puts it in the 70+ lbs flow category at 22psi, whcih means it will out flow a T04Z and spool up quicker, with or without v-band tech!
To take advantage of the top end, I would recommend running a 1.06 rear housing V-Band setup. In my opinion, the V-Band setup is probably worth going down 1 size on a conventional flange setup, eg. 1.06 should have the response of a 0.84 etc.
My HKS housing is 1.20 and is largely suited to a 3L 2J setup with all the fruit, ut I think it will still be as responsive at a 1.00 setup. I will be doing back to back testing with my custom T4 HKS 0.90 setup vs the 1.20 V-band setup and merge collector. I reckon the V-Band could outspool the T4 setup with the merge collector setup, even though it is 1.20!
It will have a proper 4" dump pipe using a 15degree expander/nozzle from 3" for optimum flow and a narrow merge collector with long tails for better flow.
Costa Tsimiklis Goo Roo Victoria 386.2 rwkw Soon T51R or GT4094
Wednesday, December 01, 2010 - 05:14 pm, by: Harley Jones(Dvjzz30)
little off topic but i knew i would find you here costa. basically I have lunched my motor and ill be building a new one. At the moment im trying to decide which route to go, wether i should just rebore what i have, throw a new set of slugs and bearings in it with a referbed head and off i go. Or wether i should go spending money on bigger cams ect. Anyway mate, was wondering if you knew at what kind of power level the stock cams start becoming a hinderance ect.
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