DIY Intake Heat Wrap: $10

by **Chinky420** » Wed May 20, 2009 10:41 am

panic wrote:Diesel engines run at 30:1 ratio under light load, and 150:1 at idle.
Vizard has run gas engines at 22:1 for cruising - no harm done.

panic wrote:Chrysler "Lean Burn" ratio was 18:1 in 1976.

diesel has different chemo-kinetic properties than regular gas. they also use a different type of spark plug than gasoline engines.

as for the gas engines, i'm sure those were designed for it, but my skepticism is regarding the 1mz and such a lean a/f ratio.

but if d-money's running it, it must be possible. just let us know if you notice any (premature) component failure.

by **D-money** » Wed May 20, 2009 10:52 am

the chip im useing is from surge performance it adjusts the iat and maf readings with the maps programed into it and is programable to get optimal performance .go ahead and laugh or shoot me down if you wish but know this im the only one of us that has actually taken the leap to try this it works well for me but i know there are still areas that can be improved so soon this will be the next upgrade to replace that http://www.vr-speed.com/store/aem-fuel- ... p-478.html

by **Midias** » Wed May 20, 2009 10:55 am

Do you have a chip sold by surge that is AEM brand or do you have a universal chip made by surge that you got off ebay. And yes there is a difference and usually the AEM Fuel / Ignition Controller (F/IC) is not refered to as a chip.

by **CASTRO** » Wed May 20, 2009 11:03 am

D-money wrote:the chip im useing is from surge performance go ahead and laugh if you must but know this it works for me and none of youguys have one this will be the next upgrade to replace that http://www.vr-speed.com/store/aem-fuel- ... p-478.html

No one is laughing, just trying to get info. Trust me, you'd be flammed like crazy and know if people were laughing or not.

If the chip you have really works then thats great and you should not be worried on its effectiveness. Just like all smart shoppers its best to have non biased #'s and results for comparison. I'm sure you'd want to do it as well so you would see if the AEM $$$$ upgrade was worth the power or mpg savings.

by **D-money** » Wed May 20, 2009 11:04 am

no its not an ebay chip i got it from horsepower freaks

by **D-money** » Wed May 20, 2009 11:11 am

ok so i did find ONE on ebay but it is made for the G35 and these chips are not interchangeable there designed to stay within manufacturer spec as to not damage the engine.

by **panic** » Wed May 20, 2009 11:16 am

i'm sure those were designed for it

Lots of spark advance and pre-heated air to the carb, otherwise stock engines.

they also use a different type of spark plug than gasoline engines

You're kidding, right?

by **Chinky420** » Wed May 20, 2009 11:18 am

glow plugs, you've never heard of em?

as for the actual combustion in a diesel cylinder, it's not the plug that ignites it, it's the compression of gases in teh cylinder.

also, how much is 'lots' of spark advancement....and how much can the 1mz handle (obviously, at this point, it's got enough spark advancement to maintain a 16:1 a/f ratio). i doubt the stock 1mz ecu would be able to advance spark timing to account for anything beyond a 20:1 a/f ratio.

by **panic** » Wed May 20, 2009 11:23 am

My point was that there is no external spark, unless the engine isn't running.

by **Chinky420** » Wed May 20, 2009 11:25 am

oh....k.

by **panic** » Wed May 20, 2009 11:34 am

Since leaner mixture burns very slowly, the amount of advance goes up - 60° is common.
If it's 16:1 and you don't have enough advance it still runs, but the temperature goes up, mileage goes down.

by **LatinDragonXJC** » Thu May 21, 2009 6:30 am

so yeah.....I think I'm wrapping my intake.

This thread got real technical.....fast and "furiously".

by **1gSE** » Thu May 21, 2009 6:34 am

Chinky420 wrote:glow plugs, you've never heard of em?

as for the actual combustion in a diesel cylinder, it's not the plug that ignites it, it's the compression of gases in teh cylinder.

also, how much is 'lots' of spark advancement....and how much can the 1mz handle (obviously, at this point, it's got enough spark advancement to maintain a 16:1 a/f ratio). i doubt the stock 1mz ecu would be able to advance spark timing to account for anything beyond a 20:1 a/f ratio.

glow plugs have nothing in common with spark plugs

by **Midias** » Thu May 21, 2009 6:41 am

I think my 1mz generally goes as high as 55 advance according to the auto xray. Maybe more but my memory is hazy. I know with the plasma booster ignition module it is much more willing to advance at higher RPM.

by **gnegroni** » Thu May 21, 2009 8:29 am

Midias wrote:I think my 1mz generally goes as high as 55 advance according to the auto xray. Maybe more but my memory is hazy. I know with the plasma booster ignition module it is much more willing to advance at higher RPM.

Yep, the added ignition power will enable leaner mixtures and handle them effectively.

DIY Intake Heat Wrap: $10

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