Monday, August 29, 2005 - 07:56 pm, by: Jeff Hogan(Hoges)
lightened pullies eh, would be interesting to see how much of a difference they make. How much do they cost? I dont think 170 is out of the question, mine made 165kw atw with the same mods as yours according to the previous owner.
Monday, August 29, 2005 - 08:30 pm, by: Anthony King(Incubus_tool)
I have a FMIC, 2.5" cat back exhaust & boost is at 10psi which gives me 170.2kW. Gives you something to compare it to anyway. Maybe the FMIC is doing more than I thought.
Monday, August 29, 2005 - 08:59 pm, by: Cihan Aday(Cihan)
Anthony, a cooler is good for these cars, and as long as the fueling is sorted, 170kw atw is not an issue. There can be alot of variation from dyno to dyno, but the ballpark figures are pretty accurate.
Its obvious my car has a fouled oxy sensor and fuel is being over compensated. I can feel it, its sluggish sometimes and performance varies too much. I posted the dyno pic for this reason Its a good example of what fouled sensors are capable of.
In retrospect, its interesting to note my fuel economy isnt as bad as i would have expected. My best tank so far (in 3 weeks) has yeiled 210kms for 30 litres of BP ultimate, or just under 15L per 100kms.
Tuesday, August 30, 2005 - 08:51 am, by: Cihan Aday(Cihan)
Im interested to know which pulleys Muzzy changed?
Aside from the pulleys, im thinking of getting an electric fan kit when the toptank blows. Is that good for some lowend/topend (when the engines under less or no boost)and what are some drawbacks if any?
A friend of mine has had the conversion done, seems fine. Its a dual fan kit off an AU falcon.
Chris n Manny, thanks for the advise. Im getting it tuned for sure. After that its basically a high efficiency cooler and adjustable cam gear. Im not too keen on dumps as yet, maybe when i change the turbo's eventually. The gains dont do it for me I found it way too expensive to install them, otherwise they would be lined up already.
Tuesday, August 30, 2005 - 09:27 am, by: Peter Nitschke(Pen)
Cihan, it's been discussed before - check the ALSC archives, but electric fans just mean you make the alternator work harder, which gets it's power from the engine anyway. Nothing gained.
Tuesday, August 30, 2005 - 01:35 pm, by: Cihan Aday(Cihan)
I see Peter, thanks.
Ben, with those mods a 1JZ would require a fuel map tune for certain, and a turbo back exhaust. 180-200rwkw is what i would expect. It would basically get to that power level and hold it to 6000rpm then trail off.
You can max out the stock turbo's; 200rwkw isn't out of the question, though its pushing it quite high in the boost stakes. You would also need a 3" or larger turbo back exhaust with highflow cat. If I was pushing the stock turbo's to the limit and going for all out power, i would be getting an efficient cooler and an adjustable camgear to push the torque curve as high up as possible. If I was preparing for larger turbo's, new injectors and a set of 264 degree cams would almost complete it
At the dyno day, I observed a few other turbo cars and power development was very linear. Especially the GTR, the torque band must have been very flat and wide because power was basically a steep line ending at 210rwkw. There was an sr20det 180sx, which peaked at 134 or so for a split second.. Quite the opposite to what the stock 1jz setup is tuned for; low down torque band, with enough torque after peak to keep power constant to near redline.
Tuesday, August 30, 2005 - 02:01 pm, by: Adam Brown(82ajb)
Well, I have a HKS pod filter, Apexi exhaust and high flow cat, Turbosmart bleed valve, and 192.8rwkw at .9bar. Ahhh, efficient 5speed R154! Coming soon... FMIC, Dump pipes, SAFC. 200rwkw on std turbos? And then some!!!!
Wednesday, August 31, 2005 - 10:03 am, by: Cihan Aday(Cihan)
Ow.. Looks good anyway thanks. Torque is useless off a dyno, wont tell you anything useful. Its actually a measurement of tractive effort so changes depending on what gear your in etc.
Wednesday, August 31, 2005 - 07:56 pm, by: Cihan Aday(Cihan)
What i mean Gareth, is its no good comparing tractive effort figures. The issue with comparing these figures on the dyno is simple. By the time it makes it way through the gearbox, the diff and gets to the wheels, theres alot of variables that would alter the outcome.
Basically, whats read out on the dyno - has nothing to do with torque at the engine So its not worth making comparisons.
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