I searched using different keywords and what not but couldn't find anything. Well, here goes anyways...

I'm wondering what the maximum at wheel output would be while running pump gas, assuming all the necessary fuel & ignition management upgrades have been done to the car - incl. standalone, injectors, fuel pump, etc. And of course also accounting for mild to mid-profile cams, bigger turbo, FMIC, etc. I'm out here in S. Cali so we only have 91 premium. I'm just trying to gauge what the possibilities are without running race gas since the car is designated more or less as a fast street car.

Some thoughts would be appreciated. Thank you in advance.

 

Cant answer specifically the numbers, but why dont you run methanol injection, thats better than running race gas, and it comes on with boost.

 

Kevin, good advice for the fellow member.


PurgeIt

Since you are at a disadvantage with the 91 octane, you can opt for an SMC alcohol kit from Buschur. You can run it very conservative with a 7gph nozzle. Spraying a little to gain a higher octane and have the car tuned very conservative. You will equal at least 100 octane. For day to day driving and dolar to dolar ratio you can't beat alcohol.

I have personally set up cars to run 1 1/4 gallon of meth per 2 tank fillups of pump gas.

 

I'm new to this methanol injection stuff. Does this accelerate the wear of the motor at all like nitrous?

 

Meth injection is in NO way like nitrous in the fact that it doesn't give you any gains what so ever. Where the gains come into play, is when you turn up the boost because the Meth alows you to run higher boost. You could run meth all day on the same boost you're at now and would actualy be doing your engine some good by keeping it cool and cleaning it out.

 

500 horse with meth.. if tuned right, and you got the money..

 

Well, alcohol injection is a consideration especially when the wick is turned to full tilt. But, I'm trying to get a best guestimate of how much power can be produced SAFELY on pump gas ALONE on a IX MR. If y'all could add some more of your thoughts on that end of consideration, I'd appreciate it

 

You need to pick a turbo for this to be answered. The problem is that any upgraded turbo is going to be falling way short of its efficiency range if you refuse to use anything but 91oct, because you will have to run way less boost than the turbo was designed to push.

Now, if you want someone to give an actual whp max with all the required bolt-ons and AEM EMS, then you need to choose which turbo you're talking about, and then I'm sure someone could tell you.

 

Good point. Let me see... turbos in consideration are... Buschur's 20G, HKS GT2835, HKS GT3037S and APEXi RX6B "Isamu"

Out here in Southern Cali... 100+ octane gas is hard to come by. 76 had their Cool Blue for a while but I can't find that anywhere anymore! And storing drums of race gas in the garage is a bit impractical for me. Alcohol injection is a STRONG consideration based on the input I've received here and some tuners I've spoken to.

 

No one else wants to chime in, eh?

 

+10

I dont know if its better then race gas, though. I think I would rather have race gas 100% of the time (No chance of anything happening (while fuel pumps and injectors can go out but that could happen w/ 91oct or alky), not saying alky injection is bad but there is a chance), but runing race gas a 100% of the time is impractical, and alky injection is very practical and will yield nearly same results.

 

Eh, I've already stated that I am strongly considering running alcohol injection... maybe water injection... haven't decided, although I've been looking through the Aquamist website with great interest. I'm just looking for a safe max figure on pump gas. I've actually been told that 400-450 can be produced on the ragged edge with pump gas only, based on what my set up will be. If that's the case, then adding water or alcohol injection will make things only safer and I can dial down the fuel as well. Regardless, it would be nice to have at least range of some sort from a forum member who may have an engine topped out on pump gas who can chime in so I can get a realistic figure to work from. Thanks.