no knock sensor on ya engine and what 11 sensors to mange wahoo and ya claiming all these stats you must have some pretty fangled gear to measure all these. I agree with Phill not long till there is holes in ya pistons from ya prehistoric set up and lack mechanical knowledge.
mrfxit,
Apr 18, 5:55pm
LMFAO . oh come on now . anythings possible on Playstation / xbox
movnon,
Apr 18, 6:02pm
engine power can be easily increased (generally) but engine life will be at least inversally proportunateThat is why race engines need constant rebuilds. Ask the V8 boys if they run the same engines in consecutive meetings without touching them!
toxicgreen.,
Apr 18, 6:07pm
Whatever,,,wen turbos got popular in the 80s factories were unsure of wat was going ito motors so they ran motors one cylinder down and boosted 2-3 psi atcompresor housing and saw figures like 170psi in cylinder, the norm became (with their heat retentive motors) 900 degs by 215psi=detonation,,210psi no deton/and found usually by 6-9 psi , I just gave the 900 surface temps a big shake up
toxicgreen.,
Apr 18, 6:18pm
1988 mazda 323 1600dohc turbo,Garrett T4 no intercooler(cooled at cylinder instead) 91 octane standard pistons.25 over. all standard internals $500 ECU brand new, is better than link as i can set parimetres for fueling then a all different parimetres for ign,, Kiwi ingenuity alright,, I just pushing one issue, The guy who taught me VE changing told me 3 things , 1 no one will listen, 2 if a motor spins to 7000 rpm and provides average results by way of applying power to a piston for a miniscule 6-8 nano seconds,,how wood it go if you put power on piston for 25 nano second! Goes great.3 motors are known for holding heat an a hot environment repells air so shed the heat and get more productivity all the way to 7000 rpm. Keep in mind motors piston power cycle is very short
skin1235,
Apr 18, 6:19pm
you just lost me, I'm a little older than the abbreviations and the bulletproof assumptions of youth allow for, I actually expect claims such as yours to be backed up by real figures, not some tirade about how the olds are dead the youth has all the answers and youth is right
mrfxit,
Apr 18, 6:22pm
OH PLEASE . I need some photo's of this motor & setup
toxicgreen.,
Apr 18, 6:26pm
Google Fuel stabilty guidlines and you will find 91 octane will stay stable at 210psi at TDC in a 900 degrees surface temprature area,thats 11-1 compression ratio,
skin1235,
Apr 18, 6:30pm
see I'm actually that old I don't have to google for that info, they taught it as part of the apprenticeship I went through to get my ticket, back in '70, before the internet, and they taught us a lot more than that too
toxicgreen.,
Apr 18, 6:42pm
I bet they also taught you that if volumetrc effeiciency was to change it wood be in a car factory and that factory would advertise how they did it. Bain of my life that they sold the entire auto trade the same speil
sr2,
Apr 18, 6:49pm
Little confused as to what you call "VE changing". I'm very familiar with volumetric efficiency but haven't heard the term used before. Sounds like a great project.
toxicgreen.,
Apr 18, 6:53pm
You look like you were wanting to listen earlier so wat iv done is shed the heat,and that de-stresses all the thermal buildup properties the motor used to have, so with more air,by less heat i get torque,endurance and fuel economy,less heat fatique
toxicgreen.,
Apr 18, 6:59pm
my previous project was oldschool skiline factory had 7psi boost we measured one cylinder at max boost saw 190psi (9.8:1 comp rate)just before plug wood spark,(plug was bolted to block for test with screw in gaugein plug hole) did cylinder cooling only and saw 295psi (16.5:1 comp rate) to high,,had to lower boost to 4psi and saw 220psi(12:1 comp rate)
fordcrzy,
Apr 18, 7:07pm
god here we go again.half assed theory. your original thread proved your theory wrong and it still is wrong.you need to learn about how turbo's and engines work as a sytem not just break it down into parts.
skin1235,
Apr 18, 7:08pm
they did teach us how to spell, and the correct terms to use when referring to engine parts and the theory behind engines lol the bain (bane) of your life would be when the internet plug to the xbox gets pulled out by some bigfoot dragging himself around the room - got it tangled in his knuckles
all that you've done so far with your engine should not be wasted by now having a slanging match with some old coot though, if you have truly improved the VE to that extent, and it is safe to do so, then you should be a very very rich young man very soon I've already said that all ecu's could be tuned different as they leave the plant, they are tuned they way they are because that gives the desired engine life balanced with power for that life but hey what does some old bugga know, he only learnt what the manufacturers wanted him to learn, he never had the enthusiasm of youth and the always right attitude - ever and he never did a cam grind with a bench grinder or ran a flathead on avgas, he never managed to overboreto fit larger pistons, restroke with an arcwelder,and shave 250thou of a head in a surfacing machine,then have to fit 2 homemade copper sheets for head gaskets cos the compression was so high it virtually didn't need spark plugs, compression ignition yeeehaa, hell no, and when it finally ran in a controlled fashion pulled 94mph in second, took a truck starter to turn it over and that had to be on 24v and cable brakes under it all sent your imagination through the roof but hey I'm an old fart, I don't know diddly
fordcrzy,
Apr 18, 7:11pm
well DUH! thats EXACTLY how turbochargers work dummy. flame front has a fixed speed so more fuel air mixture provides longer burn time on the piston.the further around the crank is from TDC after firing the more torque is produced.(good old triginometry at work).geez and you missed this point how!
sr2,
Apr 18, 7:11pm
I'm interested but am having trouble deciphering your terminology, what do you call "cylinder cooling"!
lazz323,
Apr 18, 7:14pm
LOLOLOLOLO +1
toxicgreen.,
Apr 18, 7:15pm
I know after last dyno guy i was waiting an making cups of tea till the rpms got to 7000rpm,now at 1psi boost in 5th i cant keep things decent if i see a cop got to hold 4th gear on open road now an drop in some engine brakin just to keep things tame, My new tuner is da bomb ,, still got final end of throttle to tune but makin big progress now.
fordcrzy,
Apr 18, 7:17pm
please enlighten me on how you hold 1 psi all the way to redline!
bigfatmat1,
Apr 18, 7:18pm
geez al these years Ive been wrong in thinking ve was the ratio between induction air/fuel capaciity of cylso to make it higher you would have more boost or port larger valves or tuned exhaust man all these car/race engine builders have it wrong. All ya need to do is change the temp of the cylinder and use 91 instead of a higher octane to lower the chance of knocking which is all your theory is about making the cylinder cooler to reduce detonation under higher cylinder pressure. go back to ya theories and post some pics. and methods of ya cylinder cooling that people have asked many a time to back ya theories and some dyno print outs as well
savanna71,
Apr 18, 7:21pm
im interested in knowing your egt's if as you claim you arent using a wide band
sw20,
Apr 18, 7:22pm
By pressing the throttle very, very lightly.
skin1235,
Apr 18, 7:23pm
screamer pipe with a hairclip for a spring! talking hairclip from nana's dresser here
toxicgreen.,
Apr 18, 7:24pm
Cylinder cooling its like ,, Interlectuall property knowledge, I wrote to Nissan interlectual property office and got a intriquing ph call back, they said they'd be interested if i was a employee of their,s, like i,d help them big time an i guess they give $500 bonuses ,cause wats learnt as an employee of them is already their property, go figure,, Advancements only come from in house cheep workers
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