Sup w/them 2024 Summer Projects?
Aug 18, 2020, 09:01 AM
#2011
EvoM Guru
iTrader: (1)
Subaru's spool like ***.
Evo8, no mivec, 2.2 short rod, pocket port head, GSC S2, ETS turbo kit, .83ar vband G30-770. No boost spike, flat 29psi. Maxed out injectors.
The lag the dyno sheet shows is not very apparent on the street.
Evo8, no mivec, 2.2 short rod, pocket port head, GSC S2, ETS turbo kit, .83ar vband G30-770. No boost spike, flat 29psi. Maxed out injectors.
The lag the dyno sheet shows is not very apparent on the street.
Aug 18, 2020, 09:06 AM
#2012
EvoM Guru
iTrader: (1)
Here is data from the other thread-
As promised, logs of the spool up in 1-4, and also a 1-4 rip to show transient response. It honestly feels identical to the MHI FP red when it was on my stock engine (non-mivec 2.0, S2's). This car is a non-mivec 2.2 with S2's.
First one has the 1st, 2nd, ad 3rd gear log files, 2nd one has 4th gear and the 1-4.
https://datazap.me/u/letsgetthisdone...2-3&hg=1-1-2-3
https://datazap.me/u/letsgetthisdone...3-4&hg=1-2-3-4
As promised, logs of the spool up in 1-4, and also a 1-4 rip to show transient response. It honestly feels identical to the MHI FP red when it was on my stock engine (non-mivec 2.0, S2's). This car is a non-mivec 2.2 with S2's.
First one has the 1st, 2nd, ad 3rd gear log files, 2nd one has 4th gear and the 1-4.
https://datazap.me/u/letsgetthisdone...2-3&hg=1-1-2-3
https://datazap.me/u/letsgetthisdone...3-4&hg=1-2-3-4
Aug 18, 2020, 09:19 AM
#2013
Watching the new Speed Academy video of them putting a G30-660 to upgrade from their G25-660 the lag on it seems pretty miserable I know its a hub dyno but showing 300ft-lbs at like 5200 rpms which was 900rpm slower. So even the G25 waw 4300 and the smaller turbine only making low 400s. Wonder what that translates to dynojet? Either way is that just what subies see?
Are we just spoiled with short runners to get low 3ks to 300, 500hp, and 8k reving? Seems like a hard sell to ever build a suby with that weak potential
(Slight trolling, still not very impressed tho)
Are we just spoiled with short runners to get low 3ks to 300, 500hp, and 8k reving? Seems like a hard sell to ever build a suby with that weak potential
(Slight trolling, still not very impressed tho)
I know they have a huge fan base, but other than rally fans, I don't get why.
Aug 18, 2020, 10:31 AM
#2014
The walbro 450 will run out at around 580-600whp with 1650 injectors depending on the setup. The 525 will flow enough that the injectors become the limit around 615ish. That sounds like you have the right idea for wiring, you can have the hobbs switch set to come on at 5-10psi of boost. Except the ground, just make that a dedicated 10ga ground wire; don't worry about the factory ground wire or anything.
Both the 450 and 525 over run the regulator, even with the siphon drilled to 9/64 (drill siphon required with either pump). It's easy to tune around because higher pressure at ultra low (idle and cruise) pulse widths actually makes bigger injectors act like smaller injectors and makes them more consistent. The two cars I have running ID2000's actually idle and cruise better with 55psi base pressure. So it's not really a concern.
I would replace the OEM rail with an AEM or other drop in replacement for the factory rail, it has more volume and will help maximize power availability for a given pump/injector combo.
Also, the 450 and 525 go int the stock housing without modifying or deleting the factory filter assembly, so there's no need to run an inline fuel filter.
Good idea on fire/heat sleeve for the return line. I would also replace those hose sections with new, STM can you the correct Gates hose to replace it with it.
Hopefully that answers everything for you.
Both the 450 and 525 over run the regulator, even with the siphon drilled to 9/64 (drill siphon required with either pump). It's easy to tune around because higher pressure at ultra low (idle and cruise) pulse widths actually makes bigger injectors act like smaller injectors and makes them more consistent. The two cars I have running ID2000's actually idle and cruise better with 55psi base pressure. So it's not really a concern.
I would replace the OEM rail with an AEM or other drop in replacement for the factory rail, it has more volume and will help maximize power availability for a given pump/injector combo.
Also, the 450 and 525 go int the stock housing without modifying or deleting the factory filter assembly, so there's no need to run an inline fuel filter.
Good idea on fire/heat sleeve for the return line. I would also replace those hose sections with new, STM can you the correct Gates hose to replace it with it.
Hopefully that answers everything for you.
Aug 18, 2020, 11:10 AM
#2017
EvoM Guru
iTrader: (1)
STI is still an EJ25. FA only comes in the base wrx.
Aug 18, 2020, 12:06 PM
#2019
EvoM Guru
iTrader: (1)
Aug 19, 2020, 12:56 PM
#2020
So this time at least I can blame the wife for buying a 2nd race car and for making me broke again haha. Ohlins, clutch, Jacks had a tranny in stock, sways, links, brakes, various worn engine bits...haven't even got wheels or tires yet.....sigh.
Aug 19, 2020, 01:43 PM
#2021
We understand. It's taking everything in my power to not mod my other toy. I will put wheels on it, eventually, but that's it. I was going to lower it.. but nah. It's hard to fight the urge.. but I really do enjoy just driving it.
Aug 21, 2020, 06:54 AM
#2024
The walbro 450 will run out at around 580-600whp with 1650 injectors depending on the setup. The 525 will flow enough that the injectors become the limit around 615ish. That sounds like you have the right idea for wiring, you can have the hobbs switch set to come on at 5-10psi of boost. Except the ground, just make that a dedicated 10ga ground wire; don't worry about the factory ground wire or anything.
Both the 450 and 525 over run the regulator, even with the siphon drilled to 9/64 (drill siphon required with either pump). It's easy to tune around because higher pressure at ultra low (idle and cruise) pulse widths actually makes bigger injectors act like smaller injectors and makes them more consistent. The two cars I have running ID2000's actually idle and cruise better with 55psi base pressure. So it's not really a concern.
I would replace the OEM rail with an AEM or other drop in replacement for the factory rail, it has more volume and will help maximize power availability for a given pump/injector combo.
Also, the 450 and 525 go int the stock housing without modifying or deleting the factory filter assembly, so there's no need to run an inline fuel filter.
Good idea on fire/heat sleeve for the return line. I would also replace those hose sections with new, STM can you the correct Gates hose to replace it with it.
Hopefully that answers everything for you.
Both the 450 and 525 over run the regulator, even with the siphon drilled to 9/64 (drill siphon required with either pump). It's easy to tune around because higher pressure at ultra low (idle and cruise) pulse widths actually makes bigger injectors act like smaller injectors and makes them more consistent. The two cars I have running ID2000's actually idle and cruise better with 55psi base pressure. So it's not really a concern.
I would replace the OEM rail with an AEM or other drop in replacement for the factory rail, it has more volume and will help maximize power availability for a given pump/injector combo.
Also, the 450 and 525 go int the stock housing without modifying or deleting the factory filter assembly, so there's no need to run an inline fuel filter.
Good idea on fire/heat sleeve for the return line. I would also replace those hose sections with new, STM can you the correct Gates hose to replace it with it.
Hopefully that answers everything for you.
Aug 21, 2020, 07:29 AM
#2025
EvoM Community Team Leader
As I'm looking at what all this stuff costs and the number of parts to replace, plus the potential for having to do extensive low load retuning, I am left wondering whether a 255/255 double pumper might be a more elegant and easier solution. If the Walbro 255 is, as a practical matter, E85 compatible, then it seems like two smaller pumps would be easier than one big one. We don't need to keep this discussion going in the Motorsport forum. It's not really what this forum is about.