Wont quote actual dollar figures, but I will not quote actual dollar figures as I have an existing arrangement with Mark (MRC) because my car is the prototype for him to be able to offer the VH45 conversion as a package for other zed owners. There has been a significant amount of research and trial-n-error involved (which those attempting to do this conversion themselves will find out). If / when Mark does this conversion for someone else then it will be significantly easier and more cost affective than it was for me. Those who know me and my car also know that I do not do things half-heartily, I do it properly and professionally. This conversion is intended for zed "connoisseurs" and not for "cruisers" or "bulimics". If you want pure power then go the TT route, and I would recommend you go that route. The V8 route is for someone who wants something different. As a ballpark figure, you could buy a very good zed or a couple of shit-boxes zeds for the price. But to put it into perspective, (not directly intending to bring Chili and Wizard into the argument), I am sure that they have spent the same scale of money on their engine and turbo rebuilds. Now I know some of you will rush off and find their dyno figures and say 250-300-3??kw compared to 180kw. But to be perfectly honest I am only concerned about 0-125km/h, above that hardly ever see the light of day.
Don't let comments get to you about power vs dollars spent. Power is nothing to go by anyway, it's torque that sets you back in the seat!
guessing flywheel power is a mugs game. i think the percentage system is greatly flawed too. in the case of the zx's ive always figured around the 70hp loss across the board. this seems to tie in with a few calculations. but as i said its all just wank anyway. stick with your rear wheel reading
Exhaust system spec & equivalent power to a LS1 Gen3 According to Mark, my exhaust is:- standard manifolds, twin 2.5in metallic cats, twin entry, twin exit, 2.5in muffler, into 2 separate 2.5in rear mufflers, mandrel bent pipes. An Holden LS1 Gen3 makes approx. 180RWkw Stock.
The Holdens appear to be a bit sneaky when determining their power levels. I've heard talk of no water pump, alternator, PS pump etc being connected to the engine for the power runs I must say that the standard VH exhaust manifolds aren't actually that bad. They are fantastic compared with the VG ones. Fabricated stainless tube acutally. Few of the welds normally penetrate a bit too far, but are really very nice for a factory item. One question though, on the dyno printout the intake temp is at 36 deg. Is your intake now in the engine bay, or do you have a feed from the front bumper. When's the vid from a quick strap down the street?
The AFM is in the engine at the moment next to the main relay box. The pipping to the air intakes in the nose is yet to be completed.
from my dyno day experience the holdens seem ok power wise. around the 60kw loss mark, through the 6 speed. But that six speed is huuuuuge. I did notice the 20 deg difference in temps too chris but i thought id better not mention it
Excellent So when do you 'take delivery'? Might have to come down for the next Sydney cruise to have a look
List my calculation which is 34% loss for an auto As presented previously I calculated the loss for my V6-Auto as 34.5% Gearbox losses = ((181 - 118) / 181) x 100 = 34.8 % Hence 33% = ((??? - 180) / ???) x 100 ??? = 270
nice work mate, got some engine pics??? any plans for turbo or supercharging???? 180kws is fun but not as fun as a nice boosted TT
You seem like a good bloke stephen and its a shame to see your thread being overshadowed by these calculations and estimations. 180rwkw is strong. glad you're car is going well.
Ditto Who cares how much its making at the crank, its rwkw and torque that counts and from 120ish for an NA to 180 is great. Well done Steven I just can't wait to hear and see it running. cheers Geoff
21.66% ... manual I am guessing For the GTO ... ((300 - 235) / 300) x 100 = 21.66% Previously I stated an expected manual gearbox loss of 22% (20-25%). I have looked at several of the posting and they seems to all be resulting in calculated losses in the low 20% which happens to correspond to the previously stated manual loss expectations. Remember that I have an automatic gearbox and not a manual. Previously I illustrated my calculations for my automatic NA V6 as 34.5% ((181 - 118) / 181) x 100 = 34.8% 250kw would work out as a 28% loss. Given the age, the heritage, and that the Z32 automatic and the Q45 automatic were designed and developed around the same time period (hence why the SAW kit was so "easy" to connect up to the VH45 box) then I would expect similar losses for both gearboxes. Hence the 33% = ((??? - 180) / ???) x 100 where ??? = 270. Also as previously stated in another thread, Nissan's quote power for the VH45 was grossly under stated due to tax of high powered engines in Japan at the time of release. So it is somewhere between 265 to 275 kwrw .... (32% - 34.5%) .... THE END ... unless you can put up numerical calculations, because most of you appear to be forgetting that it is an automatic and not a manual.
All these % and estimates.. its all garbage.. forget it Steven.. You have a wicked car.. it will go like stink and meet your objectives perfectly. I enjoy reading your posts. I would be happy if your threads are not crowded with 'drivetrain losses' or anything else just as meaningless. Keep up the good work.
VH45 is volumetrically capable of 270 KWFW The VH45 is volumetrically capable of 270 kwfw ... no one appears to disagree with the claim of a NA-V6 making 181 kwfw and that is from a 3 liter motor. So if 181 kwfw is divided by 3 liters equals 60 kwfw per liter. The VH45 has 4.5 liter, so it is reasonable to consider that a similarly designed and developed engine from the same manufacturer would also be capable of the same 60 kwfw per liter, so multiple by 60 kwfw/liter by 4.5 liters equals ..... 60 x 4.5 = 270 kwfw. :bash: Hence the same value of 270 kwfw is calculated both by percentage gearbox losses and by kwfw per liter, therefore 270kwfw is clearly possible. :biggrin: Nissan standard NA V6 = 168.0 kwfw (Nissan Australia) Pod filter = 4.5 kwfw (Stillen) Underdrive Pulley = 6.5 kwfw (Stillen) 98oct fuel = 2.0 kwfw (1-2% Shell & Mobile) TOTAL = 181 kwfw :banned:
