All Motor DC5R Complete!

Quote:

---

Originally Posted by mattyd

yfin - not to be a smart arse, and all due respect with the next question, are you speaking from experience when comparing dynos? granted that it is a hub dyno vs a roller dyno, however i cannot really see that there would be much of a difference in friction of tyres to steel rollers and hubs which are attached which mimmic tyre contact to road. Both dynos, when used correctly are there not to just measure power out put, are also there to provide load on gear box and engine when tuning a vehicle, load meant to be close to what would be experienced on the road... providing indications of when in the rpm the vehicle will need more fuel added to the mixture, or more spark and when to advance timing. I dont even think it is really possible to obtain the same power figure on 2 different dynos at 2 different workshops??!:confused:

---

I was merely pointing out the difference with a hub dyno as some people assume that all dynos measure power at the wheels. When you quote "fwkw" as you have - people think you are talking about power at the wheels.

That figure I quoted of 10-15% higher figure being shown on a hub dyno was something James' advised me -ie the person who tuned your car. It is not a rigid fixed percentage - it is a generalisation comparing it to something common like a Dynodynamics rolling dyno.

And of course, different dynos will produce different results - but a hub dyno produces a higher result. I am not flaming your result in the slightest - it sounds like a very nice car. Your before and after results are really what is important. Any chance you can post up a base line on that dyno so we can really see the difference? Cheers

its all good yfin.. as i said i wasnt being a smart arse and was after your opinion on it. James advised me of the same, and from my own knowledge there is no 100% accurate spot on way of measuring power. As you said its the before and after and tuning of the car that is the most important.

i saw the results of the jtune stuff. was your car one of the ginuea pigs? you dont live, or travel around the western burbs of melb by any chance do you?

i do have a graph of a midly modded dc5r plotted against my car... unfortunatly nothing that compares my car stock to what it is now

http://img511.imageshack.us/img511/9...neddc51if1.jpg

Quote:

---

Originally Posted by mattyd

its all good yfin.. as i said i wasnt being a smart arse and was after your opinion on it. James advised me of the same, and from my own knowledge there is no 100% accurate spot on way of measuring power. As you said its the before and after and tuning of the car that is the most important.

i saw the results of the jtune stuff. was your car one of the ginuea pigs? you dont live, or travel around the western burbs of melb by any chance do you?

---

Nah not a guinea pig - just following the Euro project closely. The K24 has lots of potential - it is just taking so long for ECU management to be sorted. Live in Sth East suburbs.

Is there any way for you to explain (or guess) why the valves burnt and rings went on your K20? Doesn't sound like it was a high mileage vehicle. I presume it was also well maintained. Would be good to know whether I can learn any lessons to avoid the same problem with my K24.

well to tell you the truth.... the engine was farked.... the complete pull down and inspection of the head and block looked like someone had previously pulled down the engine and performed a shitty rebuild. it seriously looked like a timing chain had streched or snapped and maybe bent all the valves... and the previous owner has had a shoddy rebuild done using used parts.. when they went to use the original valves.. they found that they were bent almost zig zag. i never over revved the engine.. ever i didnt even know what the limiter sounded like.. there was an engine sign on the head that indicated it had been worked on previously, but was out of view to myself and another mechanic who inspected the car. maybe an oiling problem was to blame? maybe a mis shift? who knows, i dont think i will ever know what really happened to it orginally. i do know that the head and block did not sustain any damage, warping or cracks. As it was previously owned i have no idea of its maintaince history.

1 thing my mechanic found was a problem with the engine and tried to think of a solution for was with the oil pick up being very very short, and the sloshing of oil could lead to starvation if driven hard or around a track on semi slicks. which lead to the addition of a baffled sump into the build, other than that he was and is still very surprised at its strength.

what are you plans for your very nice looking euro?

Quote:

---

Originally Posted by prusso

current auto salon fwd na record is around 140 or so kw geez talk about alot more power from a k20!

---

how much work has been done to pull these numbers im currently stock motor running a k100 cai and a exhaust... i have future plans for cams and head work but for now im happy as to be pulling these numbers...a stock k20 is 127KW at the wheels...Btw this is directly to prusso not anyone else..


congrats buddy your a legend for doing something different rather then going the Turbo skyline that you see every corner...

would love to see the times this car can pull....


cheers
hassy

may i ask roughly how much everything costed you?

yeah who cares about dyno numbers. time to take it down the 1/4 and let the car do the talking.

Quote:

---

Originally Posted by barefootbonzai

yeah who cares about dyno numbers. time to take it down the 1/4 and let the car do the talking.

---

so true. Let the times do the talking:thumbsup:

my thoughts exactly......... i will post times as soon as they are done.


you can ask about how much it cost, but i wont say... as my girlfriend my end up reading this lol

haha lol..

um what you expecting to pull or hoping to pull

i forgot to thank my missus for letting me drive around and being driven around in her purple hyandai (s)exel lol fantastic auto machine

with the current suspension set up i will be running some pretty crappy times... nothing but wheel spin and 2nd gear tramp

ultimately a low 12 pass.... im being pressured to fit happy gas by me mechanic who wants to see this blister a high 11.... and quite frankly im loving the idea of that


i did see your car at the last melbourne autosalon... and i was impressed. i didnt see the power run... but congrats on a very clean car and very very clean install of a k24 into the tight restaints of the crx. what suspension have you got running?

Quote:

---

Originally Posted by yfin

I think that is the same hub dyno James is using for the Euro project - if so power/torque figures are at the hub, not at the wheels. The wheel figure is typically lower by about 10-15%. either way very nice...

---

Yeah, i got my car (DC2) tuned there and it pulled 125kw. No way is it making that at the wheels lol.

Congratulations on your car though. Awesome stuff, and still n/a to boot!