WMI vs CPI?

[BrandonFYIA]

Stinger CPI is finally ready for release - N54Tech.com - International Turbo Racing Discussion

I know it's a brand new product, but does anyone have any thoughts of WMI vs CPI for someone that has access to pump E85? Performance increase is my number 1 concern, with quality of life a second. Plan to do full bolt ons if that's a concern one way or the other.

 

[EClapp3]

If you don't already have WMI and access to E I think this is awesome. As far as performance between the two I think it will be equivalent but this adds better capabilities with the E sensor and cheaper and easier to get consumable. The quality of life I don't see an issue either. This will clean the intake valves as well. The only concern I can think of is the E eating away the factory rubber lines if there are any. I can only assume the factory injectors are compatible as well.

 

[BrandonFYIA]

I appreciate your reply! It sounded like they were fairly equal performance wise. I'm leaning the CPI direction as I'm learning.

 

[EClapp3]

I appreciate your reply! It sounded like they were fairly equal performance wise. I'm leaning the CPI direction as I'm learning.

No Problem. To me it seems like if you have easy access to E85 I would lean that way. But maybe you could call BMS and they could help you decide and let me know? lol

They are really helpful and nice when you call.

 

[tarmacblack1]

I already have BMS WMI and was thinking about running both if it's worth it. Hmmmm.

 

[Jaybone]

Could try it and log and see if there is any improvements

 

[BrandonFYIA]

I just recently found out I have easy access to a Sunoco 260 GT 100 octane pump. Would that push things solidly into the CPI camp for me? would it be better or worse than E30? @Terry@BMS ?

 

[Jaybone]

I would think better.... E30 blend 93/E85 might get you around 95-97 octane at best. I would think 100 octane would be expensive though.

 

[BrandonFYIA]

I would think better.... E30 blend 93/E85 might get you around 95-97 octane at best. I would think 100 octane would be expensive though.

its crazy expensive! 10 bucks a gallon. It would be a treat, not a daily lol.

 

[AWDGT2]

I already have BMS WMI and was thinking about running both if it's worth it. Hmmmm.

No gain to both but there are advantages and disadvantages to both. BTW these are just my opinion and I have no real science to back it up.
Meth can be easy to find if you have a speed shop. E can be easy to find depending on where you live. SO.... even so far...
Both take an afternoon to install and can be complicated if you are not mechanically inclined. So... Even so far....
Both act as a 7th injector so to speak. So... even so far...
Meth can run out but you have a whole tank in the car your feeding off of with the CPI kit. Win for the CPI
Meth has a much higher octane rating, 110, but if you water it 50/50 it dilutes that.. BUT, the water still assist in cooling the charge temperature significantly.
Ethanol is hard to beat when it comes to cooling. It burns at much cooler temperature than gasoline as well— decreasing the chances for hot spots and thus pre-ignition. Though we are speaking about E85 or 85% ethanol. With the CPI kit, I've heard max E50 and some have maxed out around E40. So that diminishes the gains significantly. In addition, Ethanol contains 30% less energy than gasoline, so you have to run 30% more fuel to compensate for that. (Thus the CPI). In addition, E50 is only 96+ octane if you run it with 93, and 95+ octane if you run it with 91.
My personal opinion, and the best possible solution is running an E27 mix with Methanol. The CPI will come up a very close second in performance. CPI win for maintenance and upkeep.

 

[BrandonFYIA]

No gain to both but there are advantages and disadvantages to both. BTW these are just my opinion and I have no real science to back it up.
Meth can be easy to find if you have a speed shop. E can be easy to find depending on where you live. SO.... even so far...
Both take an afternoon to install and can be complicated if you are not mechanically inclined. So... Even so far....
Both act as a 7th injector so to speak. So... even so far...
Meth can run out but you have a whole tank in the car your feeding off of with the CPI kit. Win for the CPI
Meth has a much higher octane rating, 110, but if you water it 50/50 it dilutes that.. BUT, the water still assist in cooling the charge temperature significantly.
Ethanol is hard to beat when it comes to cooling. It burns at much cooler temperature than gasoline as well— decreasing the chances for hot spots and thus pre-ignition. Though we are speaking about E85 or 85% ethanol. With the CPI kit, I've heard max E50 and some have maxed out around E40. So that diminishes the gains significantly. In addition, Ethanol contains 30% less energy than gasoline, so you have to run 30% more fuel to compensate for that. (Thus the CPI). In addition, E50 is only 96+ octane if you run it with 93, and 95+ octane if you run it with 91.
My personal opinion, and the best possible solution is running an E27 mix with Methanol. The CPI will come up a very close second in performance. CPI win for maintenance and upkeep.

That was a great and well thought out response. I really appreciate it.

 

[tarmacblack1]

No gain to both but there are advantages and disadvantages to both. BTW these are just my opinion and I have no real science to back it up.
Meth can be easy to find if you have a speed shop. E can be easy to find depending on where you live. SO.... even so far...
Both take an afternoon to install and can be complicated if you are not mechanically inclined. So... Even so far....
Both act as a 7th injector so to speak. So... even so far...
Meth can run out but you have a whole tank in the car your feeding off of with the CPI kit. Win for the CPI
Meth has a much higher octane rating, 110, but if you water it 50/50 it dilutes that.. BUT, the water still assist in cooling the charge temperature significantly.
Ethanol is hard to beat when it comes to cooling. It burns at much cooler temperature than gasoline as well— decreasing the chances for hot spots and thus pre-ignition. Though we are speaking about E85 or 85% ethanol. With the CPI kit, I've heard max E50 and some have maxed out around E40. So that diminishes the gains significantly. In addition, Ethanol contains 30% less energy than gasoline, so you have to run 30% more fuel to compensate for that. (Thus the CPI). In addition, E50 is only 96+ octane if you run it with 93, and 95+ octane if you run it with 91.
My personal opinion, and the best possible solution is running an E27 mix with Methanol. The CPI will come up a very close second in performance. CPI win for maintenance and upkeep.

I agree. Ran e85 in my evo for years. I'm going to experiment with 3-4 gallons of ethanol to a full tank. Car is rippin right now with 100% meth, 93 octane and a bottle of octanium.

 

[Intelliburn]

I agree. Ran e85 in my evo for years. I'm going to experiment with 3-4 gallons of ethanol to a full tank. Car is rippin right now with 100% meth, 93 octane and a bottle of octanium.

I think I’m leaning on the WMI side. I have been weighing the two (CPI and WMI). I already have a Fuel IT sensor installed. I think that a mixture of WMI along with E30 will produce a favorable result. I like the ‘cleaning’ aspect of the WMI. Although I’m not happy about the extra tank in the trunk. I will probably think on it a little more and pull the trigger on either one for a June install.

 

[AWDGT2]

I agree. Ran e85 in my evo for years. I'm going to experiment with 3-4 gallons of ethanol to a full tank. Car is rippin right now with 100% meth, 93 octane and a bottle of octanium.

That was my concoction for my 11.16 run

 

[tarmacblack1]

I think I’m leaning on the WMI side. I have been weighing the two (CPI and WMI). I already have a Fuel IT sensor installed. I think that a mixture of WMI along with E30 will produce a favorable result. I like the ‘cleaning’ aspect of the WMI. Although I’m not happy about the extra tank in the trunk. I will probably think on it a little more and pull the trigger on either one for a June install.

I highly suggest it!

 

[Jaybone]

That was my concoction for my 11.16 run

Here is my log with wmi why does my timing look bad?

 

[AWDGT2]

Here is my log with wmi why does my timing look bad?

I'm just on a phone for a while, I'll be able to look at it tonight for you

 

[Jaybone]

Did another battery reset

 

[ChaneRZ]

So every time you have big timing corrections, you’re just gonna reset the ecu every time? Not good imho.

 

[Jaybone]

Well what can be causing this? I had bad timing corrections in map 1 on 93 octane which tells me its not the gas or plugs.