bleu
01-15-2007, 05:51 AM
I recently totalled my '05 Lotus Elise. The weather got me so it wasn't aggressive driving or anything. I just took a risk driving in conditions that were rapidly deteriorating. I lost.
Having said that, it brings a renewed hope for the future. I was running a 35hp shot NX wet. Very very basic set up but it did and will present some unique problems. I'll be getting an '06 Exige later this summer (i'm in Korea now) and that will be the project car all suggestions should be focused on. I really need your help to make this a successful install.
First, the conditions.
1. I still have the entire NX kit including, bottle heater and custom guage bracket for the cockpit.
2. The '05 model has a throttle cable, the '06 is drive by wire.
3. Car has a high compression ratio (11.5:1)
Second, my challanges.
1. The 10lb Bottle only seems to fit laid down nearly flat in the boot (trunk) when maintaining a front to rear orientation.
2. The drive by wire setup confuses me. how do i actuate the TPS switch to signal WOT? new part needed?
3. Making it a stealth install
My current plan/solutions that are up for committee.
1. Bottle position. I am looking at behind the seats. There is a rear wall in the car behind the seats. Inside that rear wall is some sound deadening foam about 2 inches thick. I could remove that wall cut some space into the foam to support the bottles and then have a hinged access panel hidden behind the drivers seat. This would be about perfect for a bank of 10oz (not 10lb) bottles maybe even 1lb bottles.
2. Bottle bank problem? Can you put bottles in a bank/series? I was thinking that i could run a line from each bottle to a distribution block (only using the block in reverse) so 4 bottles would feed 1 block. Think that would work? keep in mind the reason here is due to the unique space requirements of the Lotus and the stealth objective.
3. Using the 10lb bottle to keep NO2 pressure in the system. Ok, so i did some math (PV=nRT) work. Tell me if I came to the correct conclusion. Lets say i had one 10oz bottle at 1000psi and one 10oz bottle completely empty (yup a true vacuum). If I had these two bottles connected in a bank/series, and then I opened the full bottle, I'd have a system at nearly 900-1000psi right? Then if I opened the second bottle (all else being equal) my system pressure should drop to about 500psi. right? P1V1 + P2V2 = PtPt correct?
If that is true then i should be able to use the 10lb bottle to refill my system when I come home. In fact, I could buy 2 or 3 bigger bottles and fill/top off my system at home.
4. Making it 2/3 stage. With the stock setup it is generally considered safe to run a 75-85 hp shot assuming the A/F is tuned correctly. Is it possible to run one system/stage that puts a 35 shot in, a second stage that puts in a 50 shot and a thrid stage that combines the two systems into an 85hp shot?
5. Ok eventually, I will transition into a S/C kit that adds about 55whp. At that point I think I will want a progressive controller so that I can tune the inputs to keep cylinder pressures in the safe zone. I think it would be bad to have the 85hp shot going full bore when the S/C is at its peak. I think I would like to have the progressive controller to quickly ramp up and down to level out the torque curve without peaking into the :rocket: zone.
So, what advise do you all have? colder plugs, octane boost, internal upgrades? Where should i start. What parts (given my current parts list) should i buy first. Should I get a water injection kit? Should I switch to a Direct Port Set up to work with the S/C plan?
Thanks guys,
Bleu
as in "he just bleu his engine!"
Having said that, it brings a renewed hope for the future. I was running a 35hp shot NX wet. Very very basic set up but it did and will present some unique problems. I'll be getting an '06 Exige later this summer (i'm in Korea now) and that will be the project car all suggestions should be focused on. I really need your help to make this a successful install.
First, the conditions.
1. I still have the entire NX kit including, bottle heater and custom guage bracket for the cockpit.
2. The '05 model has a throttle cable, the '06 is drive by wire.
3. Car has a high compression ratio (11.5:1)
Second, my challanges.
1. The 10lb Bottle only seems to fit laid down nearly flat in the boot (trunk) when maintaining a front to rear orientation.
2. The drive by wire setup confuses me. how do i actuate the TPS switch to signal WOT? new part needed?
3. Making it a stealth install
My current plan/solutions that are up for committee.
1. Bottle position. I am looking at behind the seats. There is a rear wall in the car behind the seats. Inside that rear wall is some sound deadening foam about 2 inches thick. I could remove that wall cut some space into the foam to support the bottles and then have a hinged access panel hidden behind the drivers seat. This would be about perfect for a bank of 10oz (not 10lb) bottles maybe even 1lb bottles.
2. Bottle bank problem? Can you put bottles in a bank/series? I was thinking that i could run a line from each bottle to a distribution block (only using the block in reverse) so 4 bottles would feed 1 block. Think that would work? keep in mind the reason here is due to the unique space requirements of the Lotus and the stealth objective.
3. Using the 10lb bottle to keep NO2 pressure in the system. Ok, so i did some math (PV=nRT) work. Tell me if I came to the correct conclusion. Lets say i had one 10oz bottle at 1000psi and one 10oz bottle completely empty (yup a true vacuum). If I had these two bottles connected in a bank/series, and then I opened the full bottle, I'd have a system at nearly 900-1000psi right? Then if I opened the second bottle (all else being equal) my system pressure should drop to about 500psi. right? P1V1 + P2V2 = PtPt correct?
If that is true then i should be able to use the 10lb bottle to refill my system when I come home. In fact, I could buy 2 or 3 bigger bottles and fill/top off my system at home.
4. Making it 2/3 stage. With the stock setup it is generally considered safe to run a 75-85 hp shot assuming the A/F is tuned correctly. Is it possible to run one system/stage that puts a 35 shot in, a second stage that puts in a 50 shot and a thrid stage that combines the two systems into an 85hp shot?
5. Ok eventually, I will transition into a S/C kit that adds about 55whp. At that point I think I will want a progressive controller so that I can tune the inputs to keep cylinder pressures in the safe zone. I think it would be bad to have the 85hp shot going full bore when the S/C is at its peak. I think I would like to have the progressive controller to quickly ramp up and down to level out the torque curve without peaking into the :rocket: zone.
So, what advise do you all have? colder plugs, octane boost, internal upgrades? Where should i start. What parts (given my current parts list) should i buy first. Should I get a water injection kit? Should I switch to a Direct Port Set up to work with the S/C plan?
Thanks guys,
Bleu
as in "he just bleu his engine!"