So if you were to make the pulsar fwd you'd have more whp if you could get grip?
Is there anyway to reduce the loss?
I'm not going to, just interesting to know these things!
In a nutshell the answer is yes!
2 cars at same fly Bhp one being 4wd and other 2wd either front or rear wheel drive (rear being better of the two) will be quicker over ground than its 4wd counterpart especially if it has lsd fitted. Once the cars are off the mark the 2wd will pull clean ahead as power to the wheels is superior and also carrying less weight due to having no bulky transfer boxes subframe etc, but it may well struggle in the wet which is where 4wd comes into its own and will be quicker in any slippery conditions such as rallying and so forth.
I will be building a fwd sunny GTI up soon (well within next year after Rasheen is done) it will have all the correct lsd's fitted and be 600+Bhp Bhp @ the wheels so should run possibly low 9s or even late 8sec quarters with good traction off the line as I've an idea how to get the grip down even better than with just using lsd's so watch this space in around a years time.
As Mr b said I'm going over the top really when I said anything between 15-30% loss as don't think I've seen any 30% losses on Dyno upto yet certainly but had a couple at around 25% which is excessive but mainly due to stuff like binding brakes and poor maintenance of car.
If I get time in next week or so (unlikely as very busy but will try my best) il load some recent Dyno print outs from pulsars and other cars we've ran and then you can work out the average losses on a pulsar.
Straight cut dog gearset will have less transmission losses over a helical or even semi helical cut gearset so lots of things can increase losses.
Just for the record too, some people falsely believe that hub dyno's are more accurate than a rolling road such as we have.
That is 100% not the case and when we were looking to purchase one is the reason we went for a proper rolling road over hub type Dyno. Reason being is the hub Dyno does not give either a semi accurate calculation at fly nor at the wheels as there are none fitted lol.
It's just good for extremely high powered cars such as top fuel dragsters or 1500bhp GTR's that can not get grip on a conventional rolling road so they have no alternative other than to use a hub Dyno. However our Dyno has outstanding grip levels due to cut of the rollers themselves and the brace bars that will pull down car even further if loss of grip is occurring.
There has been (not on mine as of yet) but a 1600bhp Toyota supra ran on the Dyno developments Dyno with no slippage as it's impossible for slippage to take place, most we've ran up till yet is just shy of 900bhp with 1000lbft torque and was a pussycat certainly would not bother me running a 2000bhp drag car on there but would need to make sure it was strapped down very well or......"...........
That's the reason we went for DD over any other make, not the cheapest by far but certainly the best and most accurate figures I've ever seen on any rolling road and that's what customers want even if it means them going home disappointed as they thought their car was making more, m3 and Audi owners are the worst for this as some leave with their tails between their legs
makes me happy to see their faces as you know my loathing for what seems to be a majority of people who drive those particular 2 types of car so