Nice, That's 175kW on a hub dyno yeah? so on a roller dyno with your wheels on, it would read lower at about 164kW?
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Nice, That's 175kW on a hub dyno yeah? so on a roller dyno with your wheels on, it would read lower at about 164kW?
so a few months on, the car is still going great... bar some jacka$$ managing to not see the massive line of traffic in front of me... or me at a complete stop.... but still its fixed and likes to be driven like no tomorrow
now a few things that have come from this build... oil temps were freaking scarey.. without giving it anything they were running close to 100 degrees and above... but an oil cooler fixed that
traction is now nil when taking off at anything but a feather touch, and its wild launching the thing at the hondata imposed 4k rpm launch control feature, 2nd and 3rd gear pulls are my favourite as 1st revs out way too quick
one thing that we have noticed is that there is a lot of noise coming from the top end. it almost sounds like a desil engine when on idle with a constant ticking, which then goes away within the rev range and oil pressure is up. We have checked all that we can and cannot see anything that is out of the ordinary ie tappets.
Whilst researching for alt oiling systems (stock oil pump doesnt really like anything over 8500 rpm) we found that with the stock oil pump design the head only gets 10% of the total oil pressure, being around about 8 psi (also explains why there is soild lifters in k20s) and that once the VTC is activated, by oil pressure, the pump starts feeding oil and pressure to the head at the same rate as what is in the block. Now this system is fine if you are running standard cams and springs as it is engineered to do this, however when heavier springs are put it and the engine rpm is low, and oil pressure low (8 psi remember?!?!), it can cause damage to the cam caps and rollers as there is not enough pressure/oil. Now here we think lies our problem of the ticking engine...
please anyone if you have any ideas as to what else it could be let us know. Any help would be greatly appreciated.
Our solution... stay tuned for a dry sump system being installed very shortly anyone for constant oil pressure? =)
i was doing some research on k20a.org and found this product;
http://www.erlperformance.com/index....113&Itemid=161
apparently this fixes the oil pump issue above 8500 rpm from what i've read on clubrsx.com and k20a.orgQuote:
Originally Posted by www.erlperformance.com
have you managed to take it down the 1/4mile yet?? interested in times..
thanks for that! k20a.org seems to be a huge wealth of knowledge.
it seems to be the best solution for wanting to run a wet sump, i just dont want to spend the cash on getting the modified pump, and still not being able to get enough pressure to the head. as i dont know the low rpm flow of this pump either.
it seems that the yanks try and keep a wet sump as they are restricted from running dry sumps in a lot of their racing catagories
but thank you again it is food for thought!
there are some great looking prefab dry sump kits coming out of the uk (pace, clockwisemotion) which would probably cost the same when you factor in all the parts required for the pump swap inc baffles for the new k24 sump, the oil pan, and chain etc. and then its labour that is the killer lol
so did u end up taking it to the 1/4 mile or what??? :)
lol, no time as yet. full time work is a killer, plus the accident took it off the road for a few months while insurance was being sorted/ christmas break where repairers close for a few weeks to a month lol, however calder has just been repaired relayed so i may be able to post a time sometime soon
Nice build man. Straight to the point, no useless parts. I like. ANd i learnt something new about k-series with the oiling issue.
********************UPDATE************************ ***
My dry sump system landed a few weeks ago.... cleared customs + Aus import duties = in my hands now, ready to go on.... Take a look!
http://forums.clubitr.com.au/showthr...?t=5084&page=3
A few more mods are planned, I have some Defis sitting at home, a plan for a custom tuned airbox and looking into intake manifolds from the states, if they can ever release them.....
I will post more pics as the installs start happening!
you had that chance to hit the 1/4 yet? It's been almost 2 years now.
lol nope,
will be going as soon as the car is done though, that will be for sure.
ive done about maybe if im lucky 20,000 kms since the build.
I have been so time starved of late, hoping to turn that around and start driving this thing, flat out!
nice build, when does ur vtec kick in??
when i used to have my eg i had toda c cam's mine kicked in at 7.5rpm and redlined at 9k
thanks.
cross over is at 5500 - 6000rpm redline to 9200rpm