Jump to content
SAU Community

Recommended Posts

  • Replies 91
  • Created
  • Last Reply

Top Posters In This Topic

i want to tune my car on e85, i heard it can be bad on fuel lines, tank etc.

i have 555cc's in might car an hope to push around 300rwkw with them on e85.

but would i have to upgrade them due to e85 needing 30% more flow capability than PULP?

so goes the theory, however i would be interested to see the consumption and duty cycle figures of someone who keeps the same injectors and boost level, and literally just involves a retune to calibrate the ecu for the type of fuel... before and after would be excellent, esp if we can get a gas analysis report along with the air/fuel ratio

-D

so goes the theory, however i would be interested to see the consumption and duty cycle figures of someone who keeps the same injectors and boost level, and literally just involves a retune to calibrate the ecu for the type of fuel... before and after would be excellent, esp if we can get a gas analysis report along with the air/fuel ratio

-D

i think the consumption is around 30% more too, but some solid results will tell more

just to give you an idea of the extra duty cycle my car seen between e86 and pulp.

injectors are 90lb bosch ev14 (about 950cc) 044 fuel pump.

PULP tune 20psi 275rwkw 47% injector duty cycle.

E85 tune 22psi 334rwkw 90% injector duty cycle.

this is on standard rail pressure so there is more in the injectors with more rail pressure.

just to give you an idea of the extra duty cycle my car seen between e86 and pulp.

injectors are 90lb bosch ev14 (about 950cc) 044 fuel pump.

PULP tune 20psi 275rwkw 47% injector duty cycle.

E85 tune 22psi 334rwkw 90% injector duty cycle.

this is on standard rail pressure so there is more in the injectors with more rail pressure.

so in otherwords i need 800 or 100cc injectors?

so in otherwords i need 800 or 100cc injectors?

you might be able to get away with them but would need alot of rail pressure. would be best to ask adrian (180or200). if it was me i would try to tune it on the 555cc just to try and save the $800.

you might be able to get away with them but would need alot of rail pressure. would be best to ask adrian (180or200). if it was me i would try to tune it on the 555cc just to try and save the $800.

if in any case you need injectors, ive been able to import US injectors for sau members before at the cheapest price avail (depending on exchange rate of course)

luke got 1600cc injectors or something ludicrous, chad got 1000's, and i think matty got 700's if not 555's along with dion

my 575's are running great in my engine. however i have other issues that need fixing (wont go OT)

if you need 30% more fuel and u get 30% + more power I would say its a practical upgrade, as you're sacrificing range for power (assuming the fuel tank wasnt enlarged).. its an unavoidable trait with e85

incidentally, some environmentalists are claiming e85 is dirtier than p98 oct. this is true in a sense, it develops more soot, however the soot is heavier than air and it makes its way into the soil. Studies done in the 80s which compared unleaded and leaded fuels found that in the long run the leaded fuels were better >for air quality< than unleaded as the lead oxide would cause the element to sink to soil level and be absorbed in the dirt

obviously, this is a bad thing for farmers, and anyone who deals with soil of any sort, however it proved that a heavier element would be more environmentally friendly than premium 98.

e85 by products actually are heavier than premium - they form a soot which sinks to the ground, but from what my limited understanding about petrochemicals entails, the carbon sinks into the ground and gets absorbed from the atmosphere the same way the old leaded petroleums did.

Of course there is also a multitude of environmental concerns regarding ethanol based petroleum, I think it will come down to being able to efficiently generating the substance as a by product rather than actually consuming more electricity than it puts out via its distillation process. (Not an issue if we have nuclear power stations and cheaper electricity but since we're a bunch of backward mofos we cant really expect anything great)

E85 - Awesome in theory, but some fundamental issues need to be addressed before we can expect it to be common enough for daily use.

Wicked for racing but. Just as indycar (they run methanol but hey, its not that much different)

-D

if in any case you need injectors, ive been able to import US injectors for sau members before at the cheapest price avail (depending on exchange rate of course)

luke got 1600cc injectors or something ludicrous, chad got 1000's, and i think matty got 700's if not 555's along with dion

my 575's are running great in my engine. however i have other issues that need fixing (wont go OT)

if you need 30% more fuel and u get 30% + more power I would say its a practical upgrade, as you're sacrificing range for power (assuming the fuel tank wasnt enlarged).. its an unavoidable trait with e85

incidentally, some environmentalists are claiming e85 is dirtier than p98 oct. this is true in a sense, it develops more soot, however the soot is heavier than air and it makes its way into the soil. Studies done in the 80s which compared unleaded and leaded fuels found that in the long run the leaded fuels were better >for air quality< than unleaded as the lead oxide would cause the element to sink to soil level and be absorbed in the dirt

obviously, this is a bad thing for farmers, and anyone who deals with soil of any sort, however it proved that a heavier element would be more environmentally friendly than premium 98.

e85 by products actually are heavier than premium - they form a soot which sinks to the ground, but from what my limited understanding about petrochemicals entails, the carbon sinks into the ground and gets absorbed from the atmosphere the same way the old leaded petroleums did.

Of course there is also a multitude of environmental concerns regarding ethanol based petroleum, I think it will come down to being able to efficiently generating the substance as a by product rather than actually consuming more electricity than it puts out via its distillation process. (Not an issue if we have nuclear power stations and cheaper electricity but since we're a bunch of backward mofos we cant really expect anything great)

E85 - Awesome in theory, but some fundamental issues need to be addressed before we can expect it to be common enough for daily use.

Wicked for racing but. Just as indycar (they run methanol but hey, its not that much different)

-D

I dont want to get into a debate here, but will say this, I dont like how the yanks make e85 with corn crops, thats just wrong, I do like how csr use a by product.

I cant argue about the soot as I havnt researched that, I would be suprised if there were any elements worse that unleaded, Unleaded is a disgusting fuel! one bonus about running E85 is it burns cleaner and doesnt leave the rear of my car dirty, unlike 90% skylines around. Check out Guiltoys e85 thread, he took his car in for emision tests in NSW and passed easily, running 330+ Rwkw from memory.

As for a injector duty, pound for pound 30% duty on a power fc sounds about right. But who wants to run same boost!

AD

just to give you an idea of the extra duty cycle my car seen between e86 and pulp.

injectors are 90lb bosch ev14 (about 950cc) 044 fuel pump.

PULP tune 20psi 275rwkw 47% injector duty cycle.

E85 tune 22psi 334rwkw 90% injector duty cycle.

this is on standard rail pressure so there is more in the injectors with more rail pressure.

I'm not after the 85rwkw that Krishy was talking about - I'd be happy with going 273@18psi up to 310-320@20+psi

700-750cc injectors see how we go.

Yeh I got my 1600cc off Dohmar. After reading about that guys 32R which maxed out 1000cc injectors at 23psi I thought I would rather be safe and go with these big sprayers.

they do make you a sad panda at full boost tho =(

but i'm so close to getting on to e85 myself, car has been rebuilt with it in mind, just need some new coils and it should be interesting to see what it makes =)

why do u say they make u a sad panda at full boost?

are the injectors dohmar gets a direct fit or do they need mods?

might hit up 1000cc to give me room with e85

even thou i have 740cc atm..

theyre direct feed low impedance top feed denso style injectors

so if you have an rb26 then yes, they are a direct fit

they also come in 1800 and 2000cc variants

-D

Only thing i dont understand is, when they said the 1600cc are direct bolt in, the info on the bosch website say they are 14mm and therefor would not fit in a stock gtr rail, being 10.5mm :s

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Surely somebody has one in VIC. Have you asked at any shops?  Is this the yearly inspection or did you get a canary?
    • This is where I share pain with you, @Duncan. The move to change so many cooling system pieces to plastic is a killer! Plastic end tanks and a few plastic hose flanges on my car's fail after so little time.  Curious about the need for a bigger rad, is that just for long sessions in the summer or because the car generally needs more cooling?
    • So, that is it! It is a pretty expensive process with the ATF costing 50-100 per 5 litres, and a mechanic will probably charge plenty because they don't want to do it. Still, considering how dirty my fluid was at 120,000klm I think it would be worth doing more like every 80,000 to keep the trans happy, they are very expensive to replace. The job is not that hard if you have the specialist tools so you can save a bit of money and do it yourself!
    • OK, onto filling. So I don't really have any pics, but will describe the process as best I can. The USDM workshop manual also covers it from TM-285 onwards. First, make sure the drain plug (17mm) is snug. Not too tight yet because it is coming off again. Note it does have a copper washer that you could replace or anneal (heat up with a blow torch) to seal nicely. Remove the fill plug, which has an inhex (I think it was 6mm but didn't check). Then, screw in the fill fitting, making sure it has a suitable o-ring (mine came without but I think it is meant to be supplied). It is important that you only screw it in hand tight. I didn't get a good pic of it, but the fill plug leads to a tube about 70mm long inside the transmission. This sets the factory level for fluid in the trans (above the join line for the pan!) and will take about 3l to fill. You then need to connect your fluid pump to the fitting via a hose, and pump in whatever amount of fluid you removed (maybe 3 litres, in my case 7 litres). If you put in more than 3l, it will spill out when you remove the fitting, so do quickly and with a drain pan underneath. Once you have pumped in the required amount of clean ATF, you start the engine and run it for 3 minutes to let the fluid circulate. Don't run it longer and if possible check the fluid temp is under 40oC (Ecutek shows Auto Trans Fluid temp now, or you could use an infrared temp gun on the bottom of the pan). The manual stresses the bit about fluid temperature because it expands when hot an might result in an underfil. So from here, the factory manual says to do the "spill and fill" again, and I did. That is, put an oil pan under the drain plug and undo it with a 17mm spanner, then watch your expensive fluid fall back out again, you should get about 3 litres.  Then, put the drain plug back in, pump 3 litres back in through the fill plug with the fitting and pump, disconnect the fill fitting and replace the fill plug, start the car and run for another 3 minutes (making sure the temp is still under 40oC). The manual then asks for a 3rd "spill and fill" just like above. I also did that and so had put 13l in by now.  This time they want you to keep the engine running and run the transmission through R and D (I hope the wheels are still off the ground!) for a while, and allow the trans temp to get to 40oC, then engine off. Finally, back under the car and undo the fill plug to let the overfill drain out; it will stop running when fluid is at the top of the levelling tube. According to the factory, that is job done! Post that, I reconnected the fill fitting and pumped in an extra 0.5l. AMS says 1.5l overfill is safe, but I started with less to see how it goes, I will add another 1.0 litres later if I'm still not happy with the hot shifts.
    • OK, so regardless of whether you did Step 1 - Spill Step 2 - Trans pan removal Step 3 - TCM removal we are on to the clean and refill. First, have a good look at the oil pan. While you might see dirty oil and some carbony build up (I did), what you don't want to see is any metal particles on the magnets, or sparkles in the oil (thankfully not). Give it all a good clean, particularly the magnets, and put the new gasket on if you have one (or, just cross your fingers) Replacement of the Valve body (if you removed it) is the "reverse of assembly". Thread the electrical socket back up through the trans case, hold the valve body up and put in the bolts you removed, with the correct lengths in the correct locations Torque for the bolts in 8Nm only so I hope you have that torque wrench handy (it feels really loose). Plug the output speed sensor back in and clip the wiring into the 2 clips, replace the spring clip on the TCM socket and plug it back into the car loom. For the pan, the workshop manual states the following order: Again, the torque is 8Nm only.
×
×
  • Create New...