GR Supra 101: Routes to big power

[FLtrackdays]

Oh.. you'll know...

Haven’t got that yet ?. Other BMW forums mention the “E” clutch pack being common problem in higher gears. Then possibly the valves, end plugs, seals or even the solenoids. Hope it’s not too extensive of a repair for ya. And that mine is related to the transmission tune. Figure I could try dropping the tune down a stage or two (or even off) and see how she does. Maybe even try skipping 1st gear & start in 2nd.

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[ChrisIsIced]

Can we have some commentary added on when a fuel line upgrade is required? Is the whole system 5/16 or does it only step down in size in the engine bay?

Ie adding an aux pump and port injectors, can't imagine that the 5/16 line in the bay is good for power and the additional flow needed for pi.

 

[alfi.mke]

I see pure is selling a pure600 now for our cars. I’m wondering, what’s the best turbo for a peppy 600-650whp? (Basically for maxing the stock auto trans).

 

[razorlab]

I see pure is selling a pure600 now for our cars. I’m wondering, what’s the best turbo for a peppy 600-650whp? (Basically for maxing the stock auto trans).

650 or 800

 

[m340_B58]

What’s up guys. I’m on a slightly different platform, an m340i. Same engine and trans as you guys I believe (b58tu and ZF 8hp51).
These forums are way more active than the bmw b58 forums, you guys all seem to be into modding. BMW dudes don’t all mod.

My set up is:
BM3 stage 2 multimap flex fuel enabled
Flex fuel kit
Dorch HPFP
S58 injectors
XHP
VRSF 200 cell downpipe
MAD charge pipe
MAD catback valved exhaust
Currently running e50 with no issues on fueling

I have a pure 800 on backorder with a 2 month lead time. Once I get that I’ll get a custom tune restricting the torque to 600ftlb. I don’t plan on building the trans at this point.

I’ve seen similar builds put down 650whp on a torque restrictive tune like this.

My question is, this is my daily driver, no track use, no dig races, mostly spirited highway driving and rolls with my friends in Mexico. Do you suggest any other upgrades? I was thinking of cooling add ons but are they necessary for non track or strip use?
I know PI is superior to an upgraded hpfp. I got the dorch hpfp for very cheap and I don’t plan on exceeding what the stock trans can handle, with the current setup I don’t see me being fuel limited

 

[razorlab]

What’s up guys. I’m on a slightly different platform, an m340i. Same engine and trans as you guys I believe (b58tu and ZF 8hp51).
These forums are way more active than the bmw b58 forums, you guys all seem to be into modding. BMW dudes don’t all mod.

My set up is:
BM3 stage 2 multimap flex fuel enabled
Flex fuel kit
Dorch HPFP
S58 injectors
XHP
VRSF 200 cell downpipe
MAD charge pipe
MAD catback valved exhaust
Currently running e50 with no issues on fueling

I have a pure 800 on backorder with a 2 month lead time. Once I get that I’ll get a custom tune restricting the torque to 600ftlb. I don’t plan on building the trans at this point.

I’ve seen similar builds put down 650whp on a torque restrictive tune like this.

My question is, this is my daily driver, no track use, no dig races, mostly spirited highway driving and rolls with my friends in Mexico. Do you suggest any other upgrades? I was thinking of cooling add ons but are they necessary for non track or strip use?
I know PI is superior to an upgraded hpfp. I got the dorch hpfp for very cheap and I don’t plan on exceeding what the stock trans can handle, with the current setup I don’t see me being fuel limited

I run basically the same setup. Pure 800, Dorch DS25 + S58 injectors. On E40 car makes approx mid 600.

I would aim for less than 600wtq if you want the trans to last, and reduce boost in 6th gear +. I had slip shifting into 6th until I reduced the boost in 6th gear +

Since you have a bunch more weight (and I am assuming xdrive as well) you are accelerating, I would def aim for way less than 600wtq.

525wtq at 6500 rpm will get you 650whp
570wtq at 6000 rpm will get you 650whp

 

[m340_B58]

I run basically the same setup. Pure 800, Dorch DS25 + S58 injectors. On E40 car makes approx mid 600.

I would aim for less than 600wtq if you want the trans to last, and reduce boost in 6th gear +. I had slip shifting into 6th until I reduced the boost in 6th gear +

Since you have a bunch more weight (and I am assuming xdrive as well) you are accelerating, I would def aim for way less than 600wtq.

I’ve heard about 6th being a problem gear on the BMW forums. I’ll add lowering boost in 6th to things I’ll have my custom tuner do.

Hell yeah, your setup is pretty much what I’m striving for. I see you track. Any fueling issues with that setup during WOT segments? are you running e40 instead of e50 or 60 because that’s the fueling limit for that pump setup?
No Xdrive, I test drove a couple and it feels off. RWD is where the joy is at.

 

[razorlab]

I’ve heard about 6th being a problem gear on the BMW forums. I’ll add lowering boost in 6th to things I’ll have my custom tuner do.

Hell yeah, your setup is pretty much what I’m striving for. I see you track. Any fueling issues with that setup during WOT segments? are you running e40 instead of e50 or 60 because that’s the fueling limit for that pump setup?
No Xdrive, I test drove a couple and it feels off. RWD is where the joy is at.

I don't see much difference between E40 and E50 so I use E40 for more headroom. I'm also higher compression ratio being a 2020 2 port Supra so if anything, I would benefit from more knock resistance. I found E40-45 to be the sweet spot.

You can run whatever level of ethanol you want as long as you are tuned correctly. You can run E8X if you want, you would just need the tune to lower the boost a ton when at that percentage of ethanol.

 

[djf]

What’s up guys. I’m on a slightly different platform, an m340i. Same engine and trans as you guys I believe (b58tu and ZF 8hp51).
These forums are way more active than the bmw b58 forums, you guys all seem to be into modding. BMW dudes don’t all mod.

My set up is:
BM3 stage 2 multimap flex fuel enabled
Flex fuel kit
Dorch HPFP
S58 injectors
XHP
VRSF 200 cell downpipe
MAD charge pipe
MAD catback valved exhaust
Currently running e50 with no issues on fueling

I have a pure 800 on backorder with a 2 month lead time. Once I get that I’ll get a custom tune restricting the torque to 600ftlb. I don’t plan on building the trans at this point.

I’ve seen similar builds put down 650whp on a torque restrictive tune like this.

My question is, this is my daily driver, no track use, no dig races, mostly spirited highway driving and rolls with my friends in Mexico. Do you suggest any other upgrades? I was thinking of cooling add ons but are they necessary for non track or strip use?
I know PI is superior to an upgraded hpfp. I got the dorch hpfp for very cheap and I don’t plan on exceeding what the stock trans can handle, with the current setup I don’t see me being fuel limited

To add to what Bryan mentioned, it’s worth considering an intake manifold with your setup to keep the temps happy considering you’re in Cali. Depending on your end goals, that might be the right time to swap out the DI for PI.

 

[m340_B58]

As I continue to mod, I read this thread and its pages a lot to see what others are doing. There’s also a lot of comedy in this thread which is great.

Full DI upgrade (dorch ds25 + s58 injectors) are going for about $2800 at the moment. It’s way cheaper than the PI method which is claimed to be cheaper than DI. I agree that PI is better for high power applications but DI is simple and cost effective for mid power. This is what I’m totaling for PI:

intake manifold: 2500 from Wagner
Fuel rail: $900
Injectors: $500
BM3 rev2: $1700
Total: ~ $5600

is there something I am missing? I keep reading that PI is cheap but I’m seeing crazy prices compared to DI.
I’m aiming for 650-700whp and I don’t see why I’d pay a premium for PI. I talked to a few tuners and they said they can make that power goal possible on ethanol + DI + pure 800. Are they being honest?

there’s also a LPFP upgrade but both PI and DI need that upgrade

 

[razorlab]

As I continue to mod, I read this thread and its pages a lot to see what others are doing. There’s also a lot of comedy in this thread which is great.

Full DI upgrade (dorch ds25 + s58 injectors) are going for about $2800 at the moment. It’s way cheaper than the PI method which is claimed to be cheaper than DI. I agree that PI is better for high power applications but DI is simple and cost effective for mid power. This is what I’m totaling for PI:

intake manifold: 2500 from Wagner
Fuel rail: $900
Injectors: $500
BM3 rev2: $1700
Total: ~ $5600

is there something I am missing? I keep reading that PI is cheap but I’m seeing crazy prices compared to DI.
I’m aiming for 650-700whp and I don’t see why I’d pay a premium for PI. I talked to a few tuners and they said they can make that power goal possible on ethanol + DI + pure 800. Are they being honest?

there’s also a LPFP upgrade but both PI and DI need that upgrade

Your fuel rail price is off by about $700. Wagner fuel rail is $190. Either way, no, you aren't missing anything. People like to parrot "PI! PI! PI! PI! PI!" and they also parrot it's cheaper, but it's not.

Most people think everyone has 1200whp but in reality most are around 450, with some in 500-600 range, and about .025 with 800+

DI doesn't need LPFP until you get close to 700. DI needs LPFP for sure because you are now feeding two fuel systems.

 

[m340_B58]

Your fuel rail price is off by about $700. Wagner fuel rail is $190. Either way, no, you aren't missing anything. People like to parrot "PI! PI! PI! PI! PI!" and they also parrot it's cheaper, but it's not.

Most people think everyone has 1200whp but in reality most are around 450, with some in 500-600 range, and about .025 with 800+

DI doesn't need LPFP until you get close to 700. DI needs LPFP for sure because you are now feeding two fuel systems.

just to clarify for any noobs like me reading this in the future, you meant

“DI doesn't need LPFP until you get close to 700. PI needs LPFP for sure because you are now feeding two fuel systems.”

 

[razorlab]

just to clarify for any noobs like me reading this in the future, you meant

“DI doesn't need LPFP until you get close to 700. PI needs LPFP for sure because you are now feeding two fuel systems.”

Yea, that's what happens when I multi-task during posts.

 

[AJRMKV]

As I continue to mod, I read this thread and its pages a lot to see what others are doing. There’s also a lot of comedy in this thread which is great.

Full DI upgrade (dorch ds25 + s58 injectors) are going for about $2800 at the moment. It’s way cheaper than the PI method which is claimed to be cheaper than DI. I agree that PI is better for high power applications but DI is simple and cost effective for mid power. This is what I’m totaling for PI:

intake manifold: 2500 from Wagner
Fuel rail: $900
Injectors: $500
BM3 rev2: $1700
Total: ~ $5600

is there something I am missing? I keep reading that PI is cheap but I’m seeing crazy prices compared to DI.
I’m aiming for 650-700whp and I don’t see why I’d pay a premium for PI. I talked to a few tuners and they said they can make that power goal possible on ethanol + DI + pure 800. Are they being honest?

there’s also a LPFP upgrade but both PI and DI need that upgrade

DS25 and S58 together will be closer to 650whp, to get near 700 comfortably and sustainably you'd need the LPFP upgrade, a larger pump and ideally larger DI injectors

 

[SavagePassenger]

Happened to see that the new Pure900 for the 2 port peeps will be available for preorder Nov 28th. The new Pure 800 is still two weeks out though I guess.

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