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Facts:
G30-770 can't remember A/R now but I. guess it was 0.83 was tuned on 2.2L skunk2 intake 65mm TB, fullrace exhaust, 272 kelford cams with mivec Fuel was 100 octane europe fuel, so something like 93-94 US using Link Ecu 32 Psi full boost at 4.500 RPM in 5 gear on dyno and holding it to the end. It made 700hp on engine. Timing was like 3* at 4500 RPM and 6.5* at 7500 just can't run crazy timing on that fuel with that much boost. In my opinion it would make 750-800 with race fuel and more boost. to be honest on street it spools not to good. only when it see whatever positive pressure it will wake up and do it fast. if the car would have ported head and some oversized valves could make even better but we will not try to push it further.
It's really good turbo but I find EFR 8374 spools better with twin scroll and makes similar power.
G35-1050 was tested on car which had GTX 3582 and EFR8374 but in ****ty condition after 2 years in hill climb.
Engine was 2.3L with Magnus intake manifold and 82mm TB Fullrace exhaust manifold some cosworth 278 Cams with mivec. Fuel was ETS TBX 102 octane rally FIA homologated fuel, so still much worse than e85. This car has stock head and valves as well and engine wasn't build to run that big turbos but live went this way. I'm assuming it was our bigggest limiting factor. All this turbo setups were tested with same boost and timing +-1* boost level 35 PSI at 4.500 8* and at 7500 15* dyno run 6th gear over 10 seconds to get as much load as I could It was hill climb car which had to survive 2 min at full power going up. Ecu in this case Motec M800
G35-1050 full boost at 5.600 rpm and full power 8000 it made 800 BHP it could make more power with more boost but engine had 4g64 100mm crank which broken before, so we couldn't risk. Spool was really disappointing very late nothing easy to drive and power wasn't satisfying for me but as I said head was limiting factor in my opinion and that's why.
EFR 8374 made 730 BHP and full boost 4400 rpm with twin scroll fullrace manifold. great spool really good power as for bent shaft and wheel in turbo When was fresh in other engine we made 770bhp.
GTX 3582 full boost at 4500 rpm and 700 bhp.
Now We have a different car and engine in which We will be using g35-1050 and I'm confident it will act way way better than it did.
Some Dyno graphs showing g30-770 and g35-1050 compared to borg EFR 8374
and some sound from the outside. have to say it's loud.
Summing up for now I'm very curious about G30-900. it will spool before 5000 but question is how much power it can make. I'm planning to use it in Evo X and hoping for 800+ on reasonable boost level but it will be maybe in 2-3 months
I know many of tuners measure cars in 3rd or 4th gear in 4 seconds pulls and not knowing if car was slipping, but I'm not trying to impress and show numbers to drivers but to make cars as fast as they can and reliable if this word even exist in those high HP applications.
specially it's not a drag 10 sec run but 2 mins at. full. boost with strong anti lag to keep turbo spooled and sequential transmission, just no room for mistakes...
Facts:
G30-770 can't remember A/R now but I. guess it was 0.83 was tuned on 2.2L skunk2 intake 65mm TB, fullrace exhaust, 272 kelford cams with mivec Fuel was 100 octane europe fuel, so something like 93-94 US using Link Ecu 32 Psi full boost at 4.500 RPM in 5 gear on dyno and holding it to the end. It made 700hp on engine. Timing was like 3* at 4500 RPM and 6.5* at 7500 just can't run crazy timing on that fuel with that much boost. In my opinion it would make 750-800 with race fuel and more boost. to be honest on street it spools not to good. only when it see whatever positive pressure it will wake up and do it fast. if the car would have ported head and some oversized valves could make even better but we will not try to push it further.
It's really good turbo but I find EFR 8374 spools better with twin scroll and makes similar power.
G35-1050 was tested on car which had GTX 3582 and EFR8374 but in ****ty condition after 2 years in hill climb.
Engine was 2.3L with Magnus intake manifold and 82mm TB Fullrace exhaust manifold some cosworth 278 Cams with mivec. Fuel was ETS TBX 102 octane rally FIA homologated fuel, so still much worse than e85. This car has stock head and valves as well and engine wasn't build to run that big turbos but live went this way. I'm assuming it was our bigggest limiting factor. All this turbo setups were tested with same boost and timing +-1* boost level 35 PSI at 4.500 8* and at 7500 15* dyno run 6th gear over 10 seconds to get as much load as I could It was hill climb car which had to survive 2 min at full power going up. Ecu in this case Motec M800
G35-1050 full boost at 5.600 rpm and full power 8000 it made 800 BHP it could make more power with more boost but engine had 4g64 100mm crank which broken before, so we couldn't risk. Spool was really disappointing very late nothing easy to drive and power wasn't satisfying for me but as I said head was limiting factor in my opinion and that's why.
EFR 8374 made 730 BHP and full boost 4400 rpm with twin scroll fullrace manifold. great spool really good power as for bent shaft and wheel in turbo When was fresh in other engine we made 770bhp.
GTX 3582 full boost at 4500 rpm and 700 bhp.
Now We have a different car and engine in which We will be using g35-1050 and I'm confident it will act way way better than it did.
Summing up for now I'm very curious about G30-900. it will spool before 5000 but question is how much power it can make. I'm planning to use it in Evo X and hoping for 800+ on reasonable boost level but it will be maybe in 2-3 months
I know many of tuners measure cars in 3rd or 4th gear in 4 seconds pulls and not knowing if car was slipping, but I'm not trying to impress and show numbers to drivers but to make cars as fast as they can and reliable if this word even exist in those high HP applications.
specially it's not a drag 10 sec run but 2 mins at. full. boost with strong anti lag to keep turbo spooled and sequential transmission, just no room for mistakes...
hi, any news on g30-900?
ps. What Ar was on g35-1050?
Last edited by claudiumxg; Apr 3, 2021 at 12:28 AM.
The G25-660 is already super responsive. 400wtq at 4000rpm on Zack's car and made 580whp at 30psi. Hence why these are only for the G30 and larger.
I remember that one of the mixed use AutoX / track Evos (RS Motors?) switched between the G25-550 and G25-660 depending on the event. They said the G25-550 was noticeably better for autocross due to less lag.
I remember that one of the mixed use AutoX / track Evos (RS Motors?) switched between the G25-550 and G25-660 depending on the event. They said the G25-550 was noticeably better for autocross due to less lag.
The G25-660 is already super responsive. 400wtq at 4000rpm on Zack's car and made 580whp at 30psi. Hence why these are only for the G30 and larger.
That's not very impressive when you look at the combination of boost threshold/time to torque/peak power. The 550 is much snappier. 7163 efr is even better: spools like the 550 and makes power like the 660. I think a twinscroll G30-660 might rival it though.
Originally Posted by letsgetthisdone
.92 AR is too small. I wouldn't run it.
That's an awfully big assumption on a new turbo/turbine/turbine housing design, especially when the .92 open turbine housing makes the 660 lazier than turbos larger than it.
That's not very impressive when you look at the combination of boost threshold/time to torque/peak power. The 550 is much snappier. 7163 efr is even better: spools like the 550 and makes power like the 660. I think a twinscroll G30-660 might rival it though.
That's an awfully big assumption on a new turbo/turbine/turbine housing design, especially when the .92 open turbine housing makes the 660 lazier than turbos larger than it.
Zack's car was a 2.0 with stock cams.
This is a 7163 on a Mivec 2.3L with GSC S2's. It took more boost to make similar peak power. And made the same torque at 4000rpm's with an extra 300cc displacement. And who knows if the turbine wheel stayed in it for any amount of time.
This is a 7163 on a Mivec 2.3L with GSC S2's. It took more boost to make similar peak power. And made the same torque at 4000rpm's with an extra 300cc displacement. And who knows if the turbine wheel stayed in it for any amount of time.
Ahhh, stock cams. That makes sense. You act like I should know who Zack is and all about his car lol. Sounds like a fun car, is there hard data on it somewhere? Those are far better results than anywhere else I've seen with the 25-660.
As for the EFR, a twin scroll turbine housing version will put down basically the same powerband on a two liter. Not to mention it responds the same or better than a stock turbo on the street.
When was fresh in other engine we made 770bhp.
