New Bolt-on EFR Video
Senior Member
Joined: 03-14-09
Posts: 1,039
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From: Anna, TX
Only one unit besides this car is available until spring.
This thread, and any subsequent/recent ZZP-EFR turbo threads have been totally about the 100% bolt on EFR turbo ~ not about any other turbo.
Matt has been making these threads to keep the subject of their pending 100% bolt on EFR turbo relevant while we've all patiently (some more than others) waited for it to become available...
... and for those who haven't had the patience, I would guess that the secondary purpose (intended or otherwise) behind these EFR turbo threads has been to help ZZP sell packages for their other turbos.
I am the patient type, which is why I'm subscribed to this thread, and his other (pending) bolt on EFR turbo threads...
he was asking what it would make with just the efr swap and no other mods besides an intercooler. im not sure that the efr without a downpipe and an intake to let it breathe would get too far past 375is on pump gas. i could be totally wrong here but it that turbo would be seriously choked up without those mods. besides who does a turbo swap with no other supporting mods anyway
As you just pointed out, the other day Matt said that one would be available (I think it was a black friday thing);
This thread, and any subsequent/recent ZZP-EFR turbo threads have been totally about the 100% bolt on EFR turbo ~ not about any other turbo.
Matt has been making these threads to keep the subject of their pending 100% bolt on EFR turbo relevant while we've all patiently (some more than others) waited for it to become available...
... and for those who haven't had the patience, I would guess that the secondary purpose (intended or otherwise) behind these EFR turbo threads has been to help ZZP sell packages for their other turbos.
I am the patient type, which is why I'm subscribed to this thread, and his other (pending) bolt on EFR turbo threads...
This thread, and any subsequent/recent ZZP-EFR turbo threads have been totally about the 100% bolt on EFR turbo ~ not about any other turbo.
Matt has been making these threads to keep the subject of their pending 100% bolt on EFR turbo relevant while we've all patiently (some more than others) waited for it to become available...
... and for those who haven't had the patience, I would guess that the secondary purpose (intended or otherwise) behind these EFR turbo threads has been to help ZZP sell packages for their other turbos.
I am the patient type, which is why I'm subscribed to this thread, and his other (pending) bolt on EFR turbo threads...
he was asking what it would make with just the efr swap and no other mods besides an intercooler. im not sure that the efr without a downpipe and an intake to let it breathe would get too far past 375is on pump gas. i could be totally wrong here but it that turbo would be seriously choked up without those mods. besides who does a turbo swap with no other supporting mods anyway
I would expect that supporting exhaust mods (at least a downpipe) would be presumed...
the whole thing is that all of Matt's threads so far are a EFR Cobalt with, cams, an extra injector(?), running on E85... which on the last point alone is kinda moot since not everyone has access to E85.
back to the supporting mods bit - I had understood that many parts are not needed - but chosen to be changed at the same time as a turbo upgrade... almost just because.
I have understood that the sole reason for an intercooler upgrade has been to lower restriction in the charged airflow - which is sound logic if you plan on increasing air volume in any way shape or form... (plus I like that this can be hidden)
I have understood that upgrading the charge piping is done almost more for 'bling' than anything else - the only real reason to do this would be that if you up the boost pressure, and/or air volume, that the OE plastic piping becomes a liability.
the latter point is kind of a bummer - because I personally like the subtlety of using all OE (exposed or visible at least) parts as possible - which is the key reason why I personally have no plans for an intake....
you know I didn't stop to think about that... good point.
I would expect that supporting exhaust mods (at least a downpipe) would be presumed...
the whole thing is that all of Matt's threads so far are a EFR Cobalt with, cams, an extra injector(?), running on E85... which on the last point alone is kinda moot since not everyone has access to E85.
back to the supporting mods bit - I had understood that many parts are not needed - but chosen to be changed at the same time as a turbo upgrade... almost just because.
I have understood that the sole reason for an intercooler upgrade has been to lower restriction in the charged airflow - which is sound logic if you plan on increasing air volume in any way shape or form... (plus I like that this can be hidden)
I have understood that upgrading the charge piping is done almost more for 'bling' than anything else - the only real reason to do this would be that if you up the boost pressure, and/or air volume, that the OE plastic piping becomes a liability.
the latter point is kind of a bummer - because I personally like the subtlety of using all OE (exposed or visible at least) parts as possible - which is the key reason why I personally have no plans for an intake....
awesome!
I would expect that supporting exhaust mods (at least a downpipe) would be presumed...
the whole thing is that all of Matt's threads so far are a EFR Cobalt with, cams, an extra injector(?), running on E85... which on the last point alone is kinda moot since not everyone has access to E85.
back to the supporting mods bit - I had understood that many parts are not needed - but chosen to be changed at the same time as a turbo upgrade... almost just because.
I have understood that the sole reason for an intercooler upgrade has been to lower restriction in the charged airflow - which is sound logic if you plan on increasing air volume in any way shape or form... (plus I like that this can be hidden)
I have understood that upgrading the charge piping is done almost more for 'bling' than anything else - the only real reason to do this would be that if you up the boost pressure, and/or air volume, that the OE plastic piping becomes a liability.
the latter point is kind of a bummer - because I personally like the subtlety of using all OE (exposed or visible at least) parts as possible - which is the key reason why I personally have no plans for an intake....
awesome!
the same goes for the charge piping. the plastic charge piping is prone to breaking....ask me how i kow lol.....and the bends flatten out in a couple places and restrict airflow.
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Joined: 12-18-10
Posts: 276
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From: SouthEast
you know I didn't stop to think about that... good point.
I would expect that supporting exhaust mods (at least a downpipe) would be presumed...
the whole thing is that all of Matt's threads so far are a EFR Cobalt with, cams, an extra injector(?), running on E85... which on the last point alone is kinda moot since not everyone has access to E85.
back to the supporting mods bit - I had understood that many parts are not needed - but chosen to be changed at the same time as a turbo upgrade... almost just because.
I have understood that the sole reason for an intercooler upgrade has been to lower restriction in the charged airflow - which is sound logic if you plan on increasing air volume in any way shape or form... (plus I like that this can be hidden)
I have understood that upgrading the charge piping is done almost more for 'bling' than anything else - the only real reason to do this would be that if you up the boost pressure, and/or air volume, that the OE plastic piping becomes a liability.
the latter point is kind of a bummer - because I personally like the subtlety of using all OE (exposed or visible at least) parts as possible - which is the key reason why I personally have no plans for an intake....
awesome!
I would expect that supporting exhaust mods (at least a downpipe) would be presumed...
the whole thing is that all of Matt's threads so far are a EFR Cobalt with, cams, an extra injector(?), running on E85... which on the last point alone is kinda moot since not everyone has access to E85.
back to the supporting mods bit - I had understood that many parts are not needed - but chosen to be changed at the same time as a turbo upgrade... almost just because.
I have understood that the sole reason for an intercooler upgrade has been to lower restriction in the charged airflow - which is sound logic if you plan on increasing air volume in any way shape or form... (plus I like that this can be hidden)
I have understood that upgrading the charge piping is done almost more for 'bling' than anything else - the only real reason to do this would be that if you up the boost pressure, and/or air volume, that the OE plastic piping becomes a liability.
the latter point is kind of a bummer - because I personally like the subtlety of using all OE (exposed or visible at least) parts as possible - which is the key reason why I personally have no plans for an intake....
awesome!
this is kind of what I was getting at... my ultimate plan was to make an upgrade that was essentially stealth... this EFR seems to bring that possibility to the surface. My thought was to put on a Intercooler mainly to reduce heat soak issues.. not really to increase peformance..as for the DP, I know its a source of restriction on the car, but I guess I wondered what the BASE requirements of the ERF were... in terms of keeping all other elements of the car stock ( intake, DP )... Ive seen some folks suggesting that the normal mods are expected.. but what someone wants to keep wraps on the power in the car?
now the story on the charge piping is another issue I guess.. some people say its a better idea to go along with a intercooler, but I'm not so sure its necessary... however with this EFR, it would be nice to know whats "reccomended" in terms of bottom line to allow the turbo to run "efficiently".... so here are my personal goals... and maybe the field can decide if they are achievable with the EFR...
-HP tuned with intercooler ( already in the works and have the HP tune on top of the GMS1 upgraded sensors)
-look & sound stock ( i.e. no intake , no DP)..
-sustainability , meaning I want the car to last with no daily performance issues
-keep the MPG's at or around 25mpg
-WHP AOA 350-375 with lower boost....
I guess my thinking here is that with a much more efficient turbo... I could get more horse power without having to raise boost, hell maybe even lowering it... which to me means keeping the car less prone to problems, being efficient and fun without breaking it...but still making gains, and not having to put on a bunch of peripheral parts... I guess the question is, what can the stock DP handle.. does it require an intake and upgraded DP? what are the expected outputs without them? .... there is alot here I know.. my brain doesnt wrap around all of this... but Im looking for a balance between more power while keeping the engine running at a happy place and not blowing it up... I think you all get that lol...
for even a GMS1 car the DP is a legitimate upgrade ~ with the exhaust restriction associated with it noticeable via the basic butt-dyno...even vondors has proven that w/o a tune change the downpipe does add power...
think of it this way; if the exhaust is restrictive - the turbo cannot spool up quickly...
iirc a more restricitve exhaust will also cause higher exhaust temps which have negative effects on the turbo...
iirc on a stock turbo, with even a downpipe, the stock exhaust isn't a restriction;
I would think that upgrading to a better exhaust would also be a good idea.
I would strongly encourage you to upgrade your downpipe.
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