Best Street Turbo for 2.0
EvoM Community Team Leader
Joined: Aug 2005
Posts: 5,690
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From: West Coast
The thing about the street is the bigger turbo you go, the more time you spend driving with a heavily restricted NA 2L engine. The more you shrink and intensify the power band, the fewer opportunities you will have to play with it.
Evolving Member
Joined: Feb 2018
Posts: 297
Likes: 47
From: St. Petersburg, Florida
What does "spool up" mean to you? 10psi by x rpm, 20psi by x rpm? I like to look at spool as "what rpm will it hit 300wtq" for judging spool comparison. At 750whp, the fastest spooling vband turbo kit for that whp might hit 300wtq around 4500 rpm.
Just spoke to ETS, Seems like my thinking was not extremely far off.
I asked them about the G30-900 .83ar and its power levels, capabilities etc. They told me it would be an ideal setup for the street as it has a decent spool time along with loads of top end.
.83ar should get me to spool up around 3500 and will hit full boost around 4500, and it has the ability to see up to 750whp with the right fueling/afr/meth setups etc.
Also told me with pump gas + meth I should be seeing anywhere from 600-650whp. I think this might be the way to go for me.
I asked them about the G30-900 .83ar and its power levels, capabilities etc. They told me it would be an ideal setup for the street as it has a decent spool time along with loads of top end.
.83ar should get me to spool up around 3500 and will hit full boost around 4500, and it has the ability to see up to 750whp with the right fueling/afr/meth setups etc.
Also told me with pump gas + meth I should be seeing anywhere from 600-650whp. I think this might be the way to go for me.
The G30-770 makes 300wtq on a 2.2L stroker at about 4200rpm. The g30-900 will not "start spooling" at 3500 on a 2.0L.
Thread Starter
Newbie
Joined: Feb 2019
Posts: 70
Likes: 2
From: Toronto
By spool time I mean when the turbo will actually start to increase its pressure(psi) before hitting full boost.
Example would be my car runs a ATP GTX3584rs and the turbo starts to spool around 4200-4300rpm and I will make full boost around 5000+rpm.
The turbo I am looking for is something that can start building pressure around 3000rpms and can have full boost by around 4500rpm so the car does not feel extreme laggy like my current setup.
The way my car currently responds is basically no power until 4200-4300rpm and then you start flying after 5000rpm. I want a turbo that can start gradually building up from 3000-3500rpms and hit full boost around 4500rpms so I can carry the power all the way to the top.
I totally understand that the more power you want to run the less streetable its going to be, however I am stating that it has the CAPABILITY of hitting higher power.
From my knowledge the G30-900 .83ar should get me to where I want to be. It begins to build pressure around 3000rpms and have full boost around 4500rpms.
Example would be my car runs a ATP GTX3584rs and the turbo starts to spool around 4200-4300rpm and I will make full boost around 5000+rpm.
The turbo I am looking for is something that can start building pressure around 3000rpms and can have full boost by around 4500rpm so the car does not feel extreme laggy like my current setup.
The way my car currently responds is basically no power until 4200-4300rpm and then you start flying after 5000rpm. I want a turbo that can start gradually building up from 3000-3500rpms and hit full boost around 4500rpms so I can carry the power all the way to the top.
I totally understand that the more power you want to run the less streetable its going to be, however I am stating that it has the CAPABILITY of hitting higher power.
From my knowledge the G30-900 .83ar should get me to where I want to be. It begins to build pressure around 3000rpms and have full boost around 4500rpms.
Thread Starter
Newbie
Joined: Feb 2019
Posts: 70
Likes: 2
From: Toronto
Depends on what AR you are running, along with fueling and other factors. Adam LZ has a G25-660 which makes full boost just after 4000rpms. Its not a huge turbocharger to be honest so I dont see why it would take that long to make power. Atleast its smaller than my current GTX3584rs
Evolving Member
Joined: Feb 2018
Posts: 297
Likes: 47
From: St. Petersburg, Florida
I think your best bet would be look at some dyno graphs on the turbo you are looking at to see what kinda spool your actually getting then decide what you wanna do. Then look at what other turbos do so you can compare the turbos and see real world #'s and go off that data.
Depends on what AR you are running, along with fueling and other factors. Adam LZ has a G25-660 which makes full boost just after 4000rpms. Its not a huge turbocharger to be honest so I dont see why it would take that long to make power. Atleast its smaller than my current GTX3584rs
A g25-660 is significantly smaller than a g30-770. Good luck with your build.
Thanks for all the responses. I am aware that achieving that power with a turbo that spools early is almost not possible especially on a 4 banger. However I was trying to ask about a turbo that can produce UP TO 750WHP and starts spooling around 3000rpms. It seems that making 750whp and having a quick spool is not possible?
My current setup starts spooling around 4500rpm and therefore I called it laggy, I hit full boost around 5000rpms. Currently pushing 615whp and 460ft/lbs on a mustang dyno.
I seen a setup on a g25-660 from AdamLZ where he was able to spool right after 3000rpms and hit 550whp at max boost past 5000rpms holding to redline. That seems like a very powerful street setup.
I am asking if the ETS Quick Spool Turbo Kit would achieve that if I went with the bigger G30-900 or any turbo relatively the same size. I was assuming the G30-900 should have more punch out of it than a G25-660.
As for the 750WHP, Im just using that as reference or example. G25-660 makes up to 660 crank hp, G30-900 makes up to 900 crank hp. In turn if I did race fuel + meth I think I could hit around 700-750whp.
I am no expert, still very much learning and new to all of this so your replies are greatly appreciated
My current setup starts spooling around 4500rpm and therefore I called it laggy, I hit full boost around 5000rpms. Currently pushing 615whp and 460ft/lbs on a mustang dyno.
I seen a setup on a g25-660 from AdamLZ where he was able to spool right after 3000rpms and hit 550whp at max boost past 5000rpms holding to redline. That seems like a very powerful street setup.
I am asking if the ETS Quick Spool Turbo Kit would achieve that if I went with the bigger G30-900 or any turbo relatively the same size. I was assuming the G30-900 should have more punch out of it than a G25-660.
As for the 750WHP, Im just using that as reference or example. G25-660 makes up to 660 crank hp, G30-900 makes up to 900 crank hp. In turn if I did race fuel + meth I think I could hit around 700-750whp.
I am no expert, still very much learning and new to all of this so your replies are greatly appreciated
Just my opinion.
I've followed Adam LZ's g25-660 and wasn't that impressed. There was also an auto x/660 car that came on earlier but the party was over at 520whp/7000rpm and tapering. An FP Red MHI offers better performance then the g25-660. Now EGT data at 25psi would be interesting to see on the 660/fp red. Most use Ethanol to keep things cool but something to factor if you are going to the road course at 28psi+ for hours.
The MHI Red makes 580-600whp+ on a good running car. Its like the stock turbo but more. Far better then the ATP 3584 in terms of transient response and backpressure.
On a mivec 2.0 the mhi red makes around 20psi by 4000-4200. It will also go well to 7600-8000rpm. For these cars its hard to beat for moderate power. There are " red like " turbo's out there but FP has proven results.
You also don't need massive boost at 3000-3500rpm. The engine needs to be able to pump the air or compressor surge is possible. Low rpm/high load for long periods isn't a good thing.
Now, if you want more power/lower EGT's going to a G30-770 would be a nice option. It may not come on as quick but will go past 8000 with pride. These engines go well to 8000/8500 without issues. Past that , there is a small concern for valvetrain and oil supply.
Sadly, as you rev the engine 8000+ rpm the stock trans/clutch may not shift as well.
I will also add that a ETS Twin scroll mivec 2.0 with a Gen 2 3582R will make 20psi by 4200-4300 at altitude and go to 8500 . That turbo will make 700-730whp on most cars.
I've followed Adam LZ's g25-660 and wasn't that impressed. There was also an auto x/660 car that came on earlier but the party was over at 520whp/7000rpm and tapering. An FP Red MHI offers better performance then the g25-660. Now EGT data at 25psi would be interesting to see on the 660/fp red. Most use Ethanol to keep things cool but something to factor if you are going to the road course at 28psi+ for hours.
The MHI Red makes 580-600whp+ on a good running car. Its like the stock turbo but more. Far better then the ATP 3584 in terms of transient response and backpressure.
On a mivec 2.0 the mhi red makes around 20psi by 4000-4200. It will also go well to 7600-8000rpm. For these cars its hard to beat for moderate power. There are " red like " turbo's out there but FP has proven results.
You also don't need massive boost at 3000-3500rpm. The engine needs to be able to pump the air or compressor surge is possible. Low rpm/high load for long periods isn't a good thing.
Now, if you want more power/lower EGT's going to a G30-770 would be a nice option. It may not come on as quick but will go past 8000 with pride. These engines go well to 8000/8500 without issues. Past that , there is a small concern for valvetrain and oil supply.
Sadly, as you rev the engine 8000+ rpm the stock trans/clutch may not shift as well.
I will also add that a ETS Twin scroll mivec 2.0 with a Gen 2 3582R will make 20psi by 4200-4300 at altitude and go to 8500 . That turbo will make 700-730whp on most cars.
Last edited by Abacus; Jun 3, 2022 at 08:32 AM.
it doesn't make 300wtq until 4100rpm.
Thread Starter
Newbie
Joined: Feb 2019
Posts: 70
Likes: 2
From: Toronto
I know the FP red is probably the best spooling turbo for the Evo's from what everyone says. What would be faster spool time the regular MHI housing or a twin scroll v band?
Last edited by notrackback; Jun 7, 2022 at 01:01 PM.