| Author |
Message |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 48
Reg: 05-2009
|
Guys i have driven two, single turbo converted soarers with an auto box. Both of which went like the clappers once they spooled up, however they seemed to take forever to get of the mark. does this lag occur in all big single conversions or have some bad choices been made by the owners of the two that i have driven??? The lag was driving me crazy |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5366
Reg: 03-2006
|
All single turbo's will have lag, as they wont be as responsive as the stockers . But as you say SLav, it depends on the owners choice of turbo . t3/t4 flanged, size of turbo, flow rates , also manifold used as well.
Easy way to solve the issue, and that is by fitting a decent stall convertor 
Then you have responsiveness and power . sometimes. |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 49
Reg: 05-2009
|
Oh yeah okay. I recall many years ago going for a drive in two mates vl turbos one of which was an auto (ex chaser) but didnt lag near as much as the two jz30 s. The other a 5spd, both absolutely screamed and neither of them having even an intercooler. Anyway getting back on the subject do you know of any single turbo converted soarers that run quicker then a 12sec qtr mile??? Ive also driven a vvti soarer in stock auto format and cant say i was as impressed by it as compared to a tt. It also seemed to lag of the mark considerably more than a tt. Does anyone have the stats on a vvti vs tt? |
Peter Burrett
DieHard
ACT
'97 2.5 VVTi ST, '04 IS200, '94 3 ltr Soarer
Posts: 635
Reg: 07-2005
|
There's a dyno comparo on PlanetSoarer which should give you the info |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 987
Reg: 09-2007
|
haha theres a single turbo v8 running 11s :p |
Ben Daniel
Goo Roo
WA
UZZ31 & JZA80
Posts: 2151
Reg: 03-2006
|
Slav Todorovic wrote on Sunday, August 30, 2009 - 08:27 am:Oh yeah okay. I recall many years ago going for a drive in two mates vl turbos one of which was an auto (ex chaser) but didnt lag near as much as the two jz30 s. The other a 5spd, both absolutely screamed and neither of them having even an intercooler. Anyway getting back on the subject do you know of any single turbo converted soarers that run quicker then a 12sec qtr mile??? Ive also driven a vvti soarer in stock auto format and cant say i was as impressed by it as compared to a tt. It also seemed to lag of the mark considerably more than a tt. Does anyone have the stats on a vvti vs tt?
The VL Turbo is a 3 litre so having a bigger displacement gives you better a spool up time also if they weren't running intercoolers that would help too as it's got no volume to fill. If I remember correctly the VL Turbo runs a pipe straight off the turbo and straight into the manifold... pipe being like ~ 12" long ? so would definatly eliminate lag.
I would be interested to know what turbo's were running on the soarer's you have driven. Most people here favour a GT30 for power/lag ratio as it's got excellent spool time for a 1JZ. I ran a GT35R on my soarer and the lag was noticeable but not enough to get annoyed about.
If getting off the line quickly is what your worried about then as mentioned above, get a high stall converter. Bundle that with a shift kit and an LSD and a Soarer with good rubber will rip straight off the line. |
David Tra
Goo Roo
qld
TT
Posts: 1059
Reg: 11-2007
|
I am guessing the single turbo soarers you driven Slav are bush bearing. |
Steven Anderson
TryHard
NSW
UZZ31 Manual
Posts: 379
Reg: 05-2006
|
Slav Todorovic wrote on Sunday, August 30, 2009 - 08:27 am:Ive also driven a vvti soarer in stock auto format and cant say i was as impressed by it as compared to a tt. It also seemed to lag of the mark considerably more than a tt. Does anyone have the stats on a vvti vs tt?
Im not sure you were driving cars that were stock or in prime condition.
A 1jz vvti has signifigantly more hump at low RPM than a TT.
edit: here we go.
-FIRST/SECOND GENERATION-
FI:Twin Turbo Turbine : CT12 x2
Valvetrain : DOHC
Displacement : 2491cc
Compression Ratio : 8.5:1
Bore : 86.0mm
Stroke : 71.5mm
Power : 280HP@6200rpm
Torque : 363Nm@4800rpm
-THIRD GENERATION-
FI:Turbocharged
Valvetrain : DOHC VVT-i(continuously variable valve timing)
Displacement : 2491cc
Compression Ratio : 9.0:1
Bore : 86.0mm
Stroke : 71.5mm
Power : 280HP@6200rpm
Torque :379Nm@2800rpm |
Doran Guthrie
Tinkerer
WA
VVTI Turbo
Posts: 87
Reg: 10-2007
|
Slav Todorovic wrote on Saturday, August 29, 2009 - 08:04 am: Ive also driven a vvti soarer in stock auto format and cant say i was as impressed by it as compared to a tt. It also seemed to lag of the mark considerably more than a tt. Does anyone have the stats on a vvti vs tt?
I've owned both and the VVTI (considering we are talking about he 1JZ) will break your neck off the line.
379Nm@2800Rpm compared to 363Nm@4800Rpm drives more like a tuned V8. |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 50
Reg: 05-2009
|
Well then ill have to assume that there may have been something wrong with the vvti that i drove, because my neck didnt go anywhere. Does anyone have a vvti with the factory turbo running high elevens or low twelves??? And even more so im still curious as to wether there are any big single turboed soarers running quicker than a high 11 sec qtr??? |
Bobby Green
TryHard
QLD
TT
Posts: 353
Reg: 09-2005
|
There was one in South East QLd running 9's with a modified T78 and a 1.5j. Probably quite a few 2j sc's in the states running quicker again. |
Jeff Smith
Goo Roo
NSW
GT30/37r Single T 5 speed
Posts: 2537
Reg: 07-2005
|
I ran a 12.76 when it was auto... Un-tuned at the time.. Now that it's manual I have since been back to the track and the best I could do before I killed my clutch I ran a 13.6 and missed third gear..
And still ran 110mph... I recon I could see it around the 12.7 as it was before it was manual and it wheel spin's a lot... Traction was a problem(street tyre's) and axle tramp...
Slav! I have the weekend of mate and can pop up and say hi ...
And you can make your mind up what you think.. Im putting out 260kw's at 18psi and 276kw's/370hp at 20psi with a small garret30/37r ball barring turbo.. Lag isn't to bad ... Full boost at 3500-3700rpm..
With all single setups you will get lag worse then the stock turbo's... And for the chase for 11's passes.. I would just do the small changes and stick with the stockie's...
I love the sound of the single setup and not really worried about time's down the quarter.. I know mine is quick and it's enough for me.
It come's down to your pocket really... Going single and getting it into the 11's can be costly.. You will get high kw/hp figure's but getting it to the ground is another story..
Anyway mate If you want to have a run in mine.. Pm me and I will pop up! |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 51
Reg: 05-2009
|
Thanks Jeff i really appreciate the offer. My interest in the matter is all re: the qtr mile times.Í'd only go single if the potential was there to run quicker times then with the stockies. I have been in a quick 5speed but i think a lot of time is lost changing gears. Which brings me to my next question, Is there anyone running aftermarket twin turbos like the hks ones for example, and getting lower times than 12sec?? |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 52
Reg: 05-2009
|
Bobby would the one in QLD be street legal? |
Cameron Laufer
DieHard
Queensland
 Built 1.5j 425.8rwkw & LPG 1jzgte 204rwks @ 10psi
Posts: 822
Reg: 12-2007
|
Slav search the forums for Ben Burgess 1jz build, he ran a single GT3076r .84, which resulted in extremely quick spool and ran low 11's he had a 2800rpm converter,.
I was running an auto up until a few months ago (now r154) and the car was easier and quicker to launch with the auto and 3200rpm converter.That why in the nex 6 months the car will be getting a powerglide installed along with a cage. |
Bobby Green
TryHard
QLD
TT
Posts: 355
Reg: 09-2005
|
I doubt it, Slav. Most of the cars making decent power aren't street legal. That doesn't stop people driving them though (e.g. DRAGER 1100rwhp supra, rego'd and street driven until it was stripped a few months ago). |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5375
Reg: 03-2006
|
NO one with aftermarket twins has gone sub 12 with a 1j regardless of auto or manual .
You can just dip into the 11's on the stock setup . But have to spend another 10k or so just to go bottom of the 11's .
So you i guess you have to weigh up, run flat 12's and maybe crack an 11 with the stock setup, or spend that extra 10k on a single setup and rebuilt stronger gearbox + stally fuel system, management, cams, the list goes on .
Its alot more money to spend to go only somewhat quicker , but those in the know, will know how HARD it is to go from 11.8 down to 11.0 ,, |
Luke Nieuwhof
Goo Roo
WA
Soarer TT
Posts: 2857
Reg: 07-2005
|
Slav, how quick do you want to go? Anywhere from high 11s up, stick with stock twins.
Low 11s, 10s, go for a big single and gearbox with a big convertor.
As Daniel says, if you only want to be going a little bit quicker than high 11s, it probably isn't worth the hassle. If you're dedicated to getting a 10sec car then single will be the way to go. |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 54
Reg: 05-2009
|
Look guys for the near future ill be real happy with a mid or low twelve sec car. Ill have to put about another 3k or so into it but im happy to do that. But was just wondering if there were guys out there getting better than low twelves or high elevens with a single turbo etc. I just want to mod the car purely for qtr mile times. thanks to all for your comments |
Jeff Smith
Goo Roo
NSW
GT30/37r Single T 5 speed
Posts: 2538
Reg: 07-2005
|
No problem Slav! There is guy's here that have single turbo's that have dipped into the 11's but the cost doesn't justify the outcome... Don't get me wrong though.. I ran a 12.76 on street tyre's and not ET street tyre's so I'm sure that if i had the auto still and used ET street's I could of dipped into the 11's ... My setup cost me 5k just for the turbo setup then add another 3k for ECU and tuning... Not to mention you would need to beef up the auto so that's another 3-4k ... Were as if you remain twins for the drags.. You will be able to run low 12's to high 11's ... And if they blow it's only going to cost around the $300 for a second hand pair... Really that is your best option regards to cost effective... |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 55
Reg: 05-2009
|
Jeff i agree, id only be keen to spend big bucks if the results were there. So ill happily stay on the path i started down, long live my stockies |
David Tra
Goo Roo
qld
TT
Posts: 1079
Reg: 11-2007
|
I think its fair to say, most users where who adopt single turbo are not seeking fast quarter mile times. |
Jeff Smith
Goo Roo
NSW
GT30/37r Single T 5 speed
Posts: 2539
Reg: 07-2005
|
Agree David! More for top end! |
Benjamin Burgess
Goo Roo
NSW
Toyota Corolla Conquest
Posts: 1993
Reg: 07-2005
|
Slav Todorovic wrote on Sunday, August 30, 2009 - 08:27 am:Oh yeah okay. I recall many years ago going for a drive in two mates vl turbos one of which was an auto (ex chaser) but didnt lag near as much as the two jz30 s. The other a 5spd, both absolutely screamed and neither of them having even an intercooler. Anyway getting back on the subject do you know of any single turbo converted soarers that run quicker then a 12sec qtr mile??? Ive also driven a vvti soarer in stock auto format and cant say i was as impressed by it as compared to a tt. It also seemed to lag of the mark considerably more than a tt. Does anyone have the stats on a vvti vs tt?
I ran 11.4 over 2 years ago (doesn't seem that long ago) I had a GT3076R with a 0.82 rear exhaust housing. I was running around 24psi of boost and making about 300-310rwkw. It was running thru an auto with a 2800/3200 (flash/brake stall) stall converter. With more runs I may have been able to reach 11.1 on that setup. Oh also the 11.4 time was a full weight soarer with full interior, stereo, and spare tyre, the works.
On the street it was very quick, maybe too quick. At the drags I measured its 0-100km/h at 3.9 seconds. On the street I measured its 80-120km/h at 2.8 seconds from memory.
I kind of miss that car. |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5397
Reg: 03-2006
|
SO do i Ben , good to see you still round though champ |
Ali Saeed
Goo Roo
WA
V8 Limited
Posts: 1028
Reg: 09-2007
|
3.9 seconds is bloody supercar quick. thats quite impressive. |
Benjamin Burgess
Goo Roo
NSW
Toyota Corolla Conquest
Posts: 1994
Reg: 07-2005
|
as quick as this car in a straight line,
http://www.audi.com.au/audi/au/en2/new_cars/r8/r8_v10/engine.html
without the 270k price tag. |
Ali Saeed
Goo Roo
WA
V8 Limited
Posts: 1031
Reg: 09-2007
|
lol as quick as a porsche 911, which is 330k. ferrar f430, which was over 400k. so yeh thats pretty brilliant. i wants your car now |
Benjamin Burgess
Goo Roo
NSW
Toyota Corolla Conquest
Posts: 1995
Reg: 07-2005
|
Sold it in April last year. It's in pieces now, located in soarers all over Australia, mostly from this forum. |
Christian Molenda
Goo Roo
QLD
T
Posts: 1166
Reg: 07-2005
|
Slav, So much about drag racing is getting off the line quick. It seems that most people that spend their $ on single conversions, dont spend the time, $ or research on setting the car up to launch hard.
Look at the Gas Motorsport cars, They use antilag and launch hard off the line. If they get it wrong, it takes till half track before they come on boost and thats the difference between a 6 second pass and a 10 second pass.
Now interms of a soarer with a single. Depending on the size turb and what boost you want to leave the line all comes down to the gearbox, the tune (antilag etc) and most importantly the grip.
A standard turbo soarer running 250rwkw with some half decent tyres and and lsd can stall up enough on the start line to get a good launch and get the needed 60ft time to get a low 12sec or high 11 as seen by daniel.
Now when upping the power to 300-350rwkw, you also change the powercurve. Now this requires larger stall etc to get the car where you need it for the launch. In some cases, using NOS on the line to get the turbo on boost isnt out of the question depending on the size of the turbo.
It has also been seen with Shanes cresida running a garret 51r 1000hp turbo needing nos and a stally to get it launching hard. He also had the suspension working for him and running a M/T ET Street rubber. Although at the time it was only running less than 400rwkw, he was putting down low 10sec passes on a standard unopened 1jz.
SO in conclusion saying singles dont run good times is a load of rubbish, its all about getting the combonation right, which gets harder with the more power you make, but when you do, you will be running ALOT better times! |
Jeff Bedsor
DieHard
QLD
TT
Posts: 648
Reg: 10-2006
|
Christian is correct on what he says, just because you have a huge turbo that puts out 400kw on the dyno doesn't necessarily mean you will get a good time down the quarter. Mine dynoed at 262kw and I regularly beat skylines etc with 350 + kw. They're usually manuals with street tyres and lowered(hard)suspension.They get pissed when the big heavy soarer leaves them for dead. The cheap way to do it is wind the boost up on the standard turbo's with the usual mods(which you would need anyway with the big single). |
James Cahir
TryHard
ACT
Soarer TT
Posts: 283
Reg: 04-2008
|
What does a 400hp Supra and a 900hp Supra have in common?
They both run 12's  |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 60
Reg: 05-2009
|
Thanks guys for all the info. I do want to mod the car to be quick, quick by street standards in any case. So id be happy running twelves on a constant basis. I was just curiuos if one could get into the elevens without say a high stall conv. and or nos, on street tyres using something other than the stock ct12s. |
David Tra
Goo Roo
qld
TT
Posts: 1092
Reg: 11-2007
|
Bond with your car. |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 64
Reg: 05-2009
|
oh i do David, i do. With the car, the bike, the truck and sometimes and only sometimes, the missus |
Matthew Crawford
DieHard
Victoria
JZA80 Supra weapon!
Posts: 592
Reg: 03-2007
|
James Cahir wrote on Tuesday, September 08, 2009 - 09:38 am:
Perhaps you need to look at Gas/Titan motorsports.
clown |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 71
Reg: 05-2009
|
Perhaps i will Dick, i mean Matt |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5412
Reg: 03-2006
|
Matthew C . Mate its well known and laughed about in the Supra clubs too mate... 400 vs 900hp = 12 seconds .
Thats not saying there ARENT any sub 12 second cars, but there are plenty of big modded hp supras that only have a 12.something second timeslip,hehe. |
Matthew Crawford
DieHard
Victoria
JZA80 Supra weapon!
Posts: 593
Reg: 03-2007
|
Slav Todorovic wrote on Sunday, September 13, 2009 - 08:20 pm:
muzzas with 20" chrome rims, street tyres and street suspension will get 12's. it is simple to get under a 12 with a single and the correct setup. |
Matthew Crawford
DieHard
Victoria
JZA80 Supra weapon!
Posts: 594
Reg: 03-2007
|
Slav Todorovic wrote on Sunday, September 13, 2009 - 08:20 pm:Perhaps i will Dick, i mean Matt
Wind your neck in newbie |
James Cahir
TryHard
ACT
Soarer TT
Posts: 285
Reg: 04-2008
|
Matthew Crawford wrote on Sunday, September 13, 2009 - 08:02 pm:
Perhaps you need to dry your eyes, princess. |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5415
Reg: 03-2006
|
Matthew , Slav has owned his Soarer for 10 years mate, so we are all newbies compared to him dude |
Matthew Crawford
DieHard
Victoria
JZA80 Supra weapon!
Posts: 595
Reg: 03-2007
|
Hasn't given him any class obviuosly |
Slav Todorovic
Tinkerer
nsw
tt pov pack
Posts: 73
Reg: 05-2009
|
Matt your the bloke calling someone here a clown. Obviously you have little or no sense of humour, as the above joke was quite a good one, only now youve made the joke on yourself. If you cant swallow it then dont dish it.
As for class, your disoriented and were probably hiding behind the door when God was handing it out. Stop being a girl and get on with it |
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder
Posts: 5419
Reg: 03-2006
|
Well Ive met Slav and can vouch for him being a decent bloke, with a sense of humour .
SOmetimes humour gets lost in its context when text is involved. |
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