pra, k20a2, 4-1, 2.5 catback no rbc
pra, k20a2, 4-1, 2.5 catback no rbc
this map made 205whp (230-240bhp) on dynojet (vd) still need to iron out a/f but close enough for me to be happy vtec is at 4500 limit is 8600 (will show 9000 on cluster) base map is from euro r .. cam advance is at 50 in high cam
tapered off in last 1000 or so revs ...and low cam steps up just before vtec starts ign timing has been only been put up 4 units on full throttle in high cam (no signs of knock ) part throttle hasnt been tuned
tapered off in last 1000 or so revs ...and low cam steps up just before vtec starts ign timing has been only been put up 4 units on full throttle in high cam (no signs of knock ) part throttle hasnt been tuned
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- new.kal
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Re: pra, k20a2, 4-1, 2.5 catback no rbc
Hi any one used thus map yet is this safe anough to use iv uploaded one recently high speed eml flashed signs of kncok
Re: pra, k20a2, 4-1, 2.5 catback no rbc
its my map bud ... running it as we speak , no signs of knock but could give knock to other cars
Re: pra, k20a2, 4-1, 2.5 catback no rbc
Your fuel curves are crossing into each other on all degree maps. You will get a much more stable af if you keep them separate from each other and flattened, but not an artificial like flattening.
Re: pra, k20a2, 4-1, 2.5 catback no rbc
my car doesn't run in positive pressure its not boosted so that top line would be unused on high cam so doesn't matter if you overlap ... or am I wrong? and my a/f is upto 1-2% in very few places my car never reads the top coloum ever in high cam only in low cam but the air may/should differ on other cars this is not tuned to perfection by no means rather a hour or 2 of street tuning, its basically the outcome of the factory map with higher rev limit accustomed to the mods I have with basically only the a/f and ignition in high cam (vtec) at w.o.t have been tuned and the log in to before and after on v.d
Re: pra, k20a2, 4-1, 2.5 catback no rbc
My car reaches column ten and so do several that i tune, and these are all naturally aspirated. It could all very well be due to the location and climate of the area. Either way i try to keep them all parallel to maintain the same pattern. This creates a much easier transitioning for future modifications or boost applications being thrown into the mix so that a new map and retuning can be avoided. I will upload my dyno tuned calibration tuned by myself. I mentioned wanting flat fuel curves in an earlier post but not to the point of having them be artificially flattened. In areas of the map that arent used for say the 0 cam degree angle, could raise the fuel to be at the same point of where it is actually used while the car is being driven. This would make your map almost completely flat, but serves no purpose and will run the same way. Artificially flattening the map past this point is grabbing individual cells and making each map 100% flat. This will not run any better then ones with minor imperfections, and can actually cause a more unstable af.curtusz wrote:my car doesn't run in positive pressure its not boosted so that top line would be unused on high cam so doesn't matter if you overlap ... or am I wrong? and my a/f is upto 1-2% in very few places my car never reads the top coloum ever in high cam only in low cam but the air may/should differ on other cars this is not tuned to perfection by no means rather a hour or 2 of street tuning, its basically the outcome of the factory map with higher rev limit accustomed to the mods I have with basically only the a/f and ignition in high cam (vtec) at w.o.t have been tuned and the log in to before and after on v.d
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Re: pra, k20a2, 4-1, 2.5 catback no rbc
Our cars run on narrowband over here in the (UK) so guys over here playing with maps should have an external wideband with a pod so chances are we will catch a lean mixture well before we melt our motors and yes I guess the map could be future proof by estimating column 10 for the rare chance of car reading it or for a vac leak, but I'm not gonna make a map till I've installed my RBC and I'm gonna create a map doing the degrees in intervals of 5 rather than the 10 and will make a basemap for people here but I don't think I will port for US cos I'm sure the fuel is of a different grade
Last edited by curtusz on Thu Apr 03, 2014 8:48 pm, edited 1 time in total.
Re: pra, k20a2, 4-1, 2.5 catback no rbc
just checked your map your a/f doesn't seem custom , or is this the artificialness you are talking about? but to that id say your ignition timing looks very odd /custom , but whats catching my attention is your block k24 with a compression ratio of 11.5.1 with a cammed head along with the valve train ive never seen or heard of anything over here with that kinda set up , do you find the port and polish to any benefit ? ive mapped a few type rs here we kinda just do it for fun, not for a living, I suppose that I should make basemaps here rather than customs.
Re: pra, k20a2, 4-1, 2.5 catback no rbc
No mine isnt artificially adjusted, I smoothed all maps, but didnt flatten to make them easier on the eye per say. Ignition timing was only tuned on WOT and median column 7, Stock Decel and cruise timing cells were all left similar to factory settings and paired with a 0 degree angle for most cruise to help streetability with the aftermarket cams. I do find benefit from the port and polish on the head. Well i think i do anyways. I carry power to 8600 on almost all cam angles with a k24 while another engine i tuned that was using the same cams,head/block combo and valvetrain, yet no port/polish or valvejob that power would fall off around 8100. Only difference in modifications were the head work, his pistons being 12.5:1, and exhaust brand. I made 264/199 to his 254/193curtusz wrote:just checked your map your a/f doesn't seem custom , or is this the artificialness you are talking about? but to that id say your ignition timing looks very odd /custom , but whats catching my attention is your block k24 with a compression ratio of 11.5.1 with a cammed head along with the valve train ive never seen or heard of anything over here with that kinda set up , do you find the port and polish to any benefit ? ive mapped a few type rs here we kinda just do it for fun, not for a living, I suppose that I should make basemaps here rather than customs.
Re: pra, k20a2, 4-1, 2.5 catback no rbc
good numbers il check your fb page out
Re: pra, k20a2, 4-1, 2.5 catback no rbc
This be any good to use with a race header instead?
Re: pra, k20a2, 4-1, 2.5 catback no rbc
It's is with a 4-1 race header UK spec I don't run this map anymore I've built another custom map as I run rbc and 70mm throttle body, just use a Basemap
Re: pra, k20a2, 4-1, 2.5 catback no rbc
Cheers for the reply mate, Ive got a UK spec aswell would this surely not be better than one of the base maps as this seems as close to my setup as possible: tegiwa m intake, toyosports 4-2-1 manifold and 2.5" b pipe.
Re: pra, k20a2, 4-1, 2.5 catback no rbc
You can try it for sure do u have a/f gauge ?
Re: pra, k20a2, 4-1, 2.5 catback no rbc
Nah no a/f gauge