Stock FA20 Limits

[pallen]

Originally Posted by BRZ_88

I've been running a centrifugal supercharger on E85 at 13psi max boost for over a 1000 miles now. My tuner was happy with all the levels, and honestly it all depends how you drive it.

Mt BRZ makes 340hp at the crank, 310 to the wheels. Torque is 222 ftlb.

So, am I reading right that E85/flexfuel and boost requires injectors and fuel pump upgrades? I'm not really interested in high HP numbers, but I like the idea of running E85 for safety since its readily available where I live.

[tomm.brz]

you need injectors for sure, pump is not mandatory usually but suggested

anyway@BRZ_88 , only 30hp dispersed between crank and wheels is too few at peak power, it s higher

[BRZ_88]

Originally Posted by pallen

So, am I reading right that E85/flexfuel and boost requires injectors and fuel pump upgrades? I'm not really interested in high HP numbers, but I like the idea of running E85 for safety since its readily available where I live.

If you're staying NA, I believe you can run on E85 using the standard injectors and pump according to other threads I've read.

If you're planning on going the forced induction route you will definitely need to replace them both to accommodate the increased fuel flow.

[86TOYO2k17]

Stock injectors with E85 is good to about 280whp it can handle 300whp but it’s close to the limits and advised to change but not 100% necessary. Beyond that you will most likely need to. Always check with tuner and their recommendations. I believe fuel pump is good till about 330-350whp on E85 before necessary.

[jflogerzi]

Originally Posted by 86TOYO2k17

Stock injectors with E85 is good to about 280whp it can handle 300whp but it’s close to the limits and advised to change but not 100% necessary. Beyond that you will most likely need to. Always check with tuner and their recommendations. I believe fuel pump is good till about 330-350whp on E85 before necessary.

Yup. I think I ran out of room just before that but tunner wanted extra headroom. Any boost on turbo around 8-10psi on e85 can be done on stock injectors and pump but tuners each have there own ways and preferences.

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[zberz]

Installing JDL kit now with a GTX2867R. The plan is somewhere between 6-8lbs of boost. I can't offer any personal experience yet, but the impression I've got from reading stuff here and talking to tuners, ~8lbs should be "safe". Every motor is different and if it blows up on the dyno, I'll be upset, but not really surprised. My goal (hope) is to stay low boost daily driving for a year or two until I can get a built block that can handle near 400, if I even want the extra power later.

I do know some folks with the JRSC who absolutely love them. I didn't get one because I may want more power later and superchargers have more limitations than turbos.

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[Setgo]

I'm supercharged, sprintex s5-210 w/ intercooler kit running 9psi on 93 octane. Have been supercharged for more than 20k miles. When did I supercharge it? 88k. I purchased the car used at 55k without any prior knowledge of initial owner abuse or anything.

Fast forward to today, I have gone through two transmission, and everything else is still running fine. I have mods to help with the FI and I have a very safe tune from Open Flash Performance.

My opinion, I am absolutely tickling the structural integrity of my connecting rods. If i take steps forward towards 12 psi, I would have already bent my connecting rods with this many miles.

[ICauseCalamity]

Originally Posted by BRZ_88

I've been running a centrifugal supercharger on E85 at 13psi max boost for over a 1000 miles now. My tuner was happy with all the levels, and honestly it all depends how you drive it.

Mt BRZ makes 340hp at the crank, 310 to the wheels. Torque is 222 ftlb.

So I'm after similar if not slightly higher numbers (320-350WHP) with a supercharger on E85. Seems like Jackson Racing and Kraftwerks have been the most recommended. Are you on stock rods? I don't mind spending the money for better rods if it means I can push closer to 350WHP more reliably. Any other parts besides oil cooler, clutch and rods I should be looking at if I want to push towards 350WHP?

[ICauseCalamity]

Originally Posted by BRZ_88

If you're staying NA, I believe you can run on E85 using the standard injectors and pump according to other threads I've read.

If you're planning on going the forced induction route you will definitely need to replace them both to accommodate the increased fuel flow.

I've been NA and running E85 for months with the OFT flash, no issues here I just use a can of injector cleaners every once in a while.

[CSG Mike]

Originally Posted by ICauseCalamity

So I'm after similar if not slightly higher numbers (320-350WHP) with a supercharger on E85. Seems like Jackson Racing and Kraftwerks have been the most recommended. Are you on stock rods? I don't mind spending the money for better rods if it means I can push closer to 350WHP more reliably. Any other parts besides oil cooler, clutch and rods I should be looking at if I want to push towards 350WHP?

Only the Jackson Racing kit

[zberz]

Originally Posted by zberz

Installing JDL kit now with a GTX2867R. The plan is somewhere between 6-8lbs of boost. I can't offer any personal experience yet, but the impression I've got from reading stuff here and talking to tuners, ~8lbs should be "safe". Every motor is different and if it blows up on the dyno, I'll be upset, but not really surprised. My goal (hope) is to stay low boost daily driving for a year or two until I can get a built block that can handle near 400, if I even want the extra power later.

I do know some folks with the JRSC who absolutely love them. I didn't get one because I may want more power later and superchargers have more limitations than turbos.

Sent from my SM-G950U using Tapatalk

6k-ish on the turbo. 257hp at 3k-something RPMs on 93. Seems to be going well, but I did find an uncomfortable amount of metal on my magnetic drain plug on the first oil change post-turbo. Blackstone said I'm probably good. :-) We'll see what the next oil change has to offer...

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[Decep]

Originally Posted by Setgo

I'm supercharged, sprintex s5-210 w/ intercooler kit running 9psi on 93 octane. Have been supercharged for more than 20k miles. When did I supercharge it? 88k. I purchased the car used at 55k without any prior knowledge of initial owner abuse or anything.

Fast forward to today, I have gone through two transmission, and everything else is still running fine. I have mods to help with the FI and I have a very safe tune from Open Flash Performance.

My opinion, I am absolutely tickling the structural integrity of my connecting rods. If i take steps forward towards 12 psi, I would have already bent my connecting rods with this many miles.

2 transmissions both after the supercharger? Damn 2 in 20k miles seems extreme at those power levels.

[ICauseCalamity]

Originally Posted by Decep

2 transmissions both after the supercharger? Damn 2 in 20k miles seems extreme at those power levels.

Possibly the recall?

[ICauseCalamity]

Originally Posted by CSG Mike

Only the Jackson Racing kit

Not even injectors?