50 trimm or 3076r
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Evolving Member
Joined: Jun 2005
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From: SoCal
50 trimm or 3076r
I was just wondering which you guys think would be better. I use my evo a lot on the streets and not really into drag racing i do more road racing and canyons. What numbers would i be looking as far as spool time and whp goes considering ill be running just pump gas most the time (91 octane for me) and of course necessary mods to support a bigger turbo. thanks
I'm going to guess that the 3076 will spool at least 300 RPM later than the 50 trim. If you are still on a stock block, then I'd probably opt for the 50 trim, especially since you are not going to run crazy amounts of boost in a road racing application. The little bit of extra top-end that the 3076 should provide won't really be realized in your application (read: redline not high enough and not enough boost to matter), but you'd probably miss that 300 RPM missing out of your powerband.
You should be able to achieve full boost on the 50 trim before 4000 RPM in 3rd gear. How much before 4000 RPM will depend on a number of factors, including Camshafts, Cam timing, size/brand of IC, etc. In my case I hit full boost by 3800 RPM with the stock intake manifold. After adding the AMS VSR intake it went back to 4000 RPM.
l8r)
You should be able to achieve full boost on the 50 trim before 4000 RPM in 3rd gear. How much before 4000 RPM will depend on a number of factors, including Camshafts, Cam timing, size/brand of IC, etc. In my case I hit full boost by 3800 RPM with the stock intake manifold. After adding the AMS VSR intake it went back to 4000 RPM.
l8r)
Originally Posted by 4Gsixty3
50 trim is a better choice if you are not going for crazy horsepower...
some lucky souls have broken into the 500whp club with the 50 trim on pump/meth injection.
if thats not a lot then i dunno what to tell you.
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Joined: Jun 2006
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From: DA P!!!
Bump, I am in the same situation. I am willing to run race gas, alky or meth. I just want opinions from people that have either of these turbos. The things is that dyno numbers don't mean that much to me unless they are on the same dyno that I am running on. All these numbers that I hear are from the 50 trim are on AMS' dynojet and we all know they read high. All I have around here are Gruppe-S' Mustang and Vishnu's Dyno Dynamics.
Local guys around here either run stock turbos for response at the track, or they are running something along the lines of a 3071. Thats the reason I want more input from the 50 trim guys. Is it hype or is it the real deal? Any input from the guys at AMS would be great, personal picks on either of the two and why?
Local guys around here either run stock turbos for response at the track, or they are running something along the lines of a 3071. Thats the reason I want more input from the 50 trim guys. Is it hype or is it the real deal? Any input from the guys at AMS would be great, personal picks on either of the two and why?
If you want power, then the VSR intake manifold is the way to go!! I gained ~25wtq across the turbo's entire powerband, and that's on a conservative 93 Octane tune.
However, there are a couple of caveats (I suspect these exist for most aftermarket intake manifolds):
- you'll lose some spoolup. I lost 200 rpm with the 50 trim.
- it does not support the EGR valve (aww, snarf, snarf). Just one more CEL to ignore
- initially AMS did not hook up the PCV hose to it. I don't remember if they had to tap an extra fitting for it or not, but I do now have the PCV connected back into the intake manifold (via catch can).
l8r)
However, there are a couple of caveats (I suspect these exist for most aftermarket intake manifolds):
- you'll lose some spoolup. I lost 200 rpm with the 50 trim.
- it does not support the EGR valve (aww, snarf, snarf). Just one more CEL to ignore
- initially AMS did not hook up the PCV hose to it. I don't remember if they had to tap an extra fitting for it or not, but I do now have the PCV connected back into the intake manifold (via catch can).
l8r)
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sooo then which out of the 2 is best for drag???
Say with my few mods, Add Full IC upgraded, bigger injecotors,with a nice set of cams... say 272's, all on 93octane, with a customflash which would you say would be my best bet for my mods?
Say with my few mods, Add Full IC upgraded, bigger injecotors,with a nice set of cams... say 272's, all on 93octane, with a customflash which would you say would be my best bet for my mods?
Last edited by kaonashi; Jul 7, 2006 at 02:17 PM.
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Joined: Sep 2005
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From: Nowhere, IL
Originally Posted by kaonashi
sooo then which out of the 2 is best for drag???
Say with my few mods, Add Full IC upgraded, bigger injecotors,with a nice set of cams... say 272's, all on 93octane, with a customflash which would you say would be my best bet for my mods?
Say with my few mods, Add Full IC upgraded, bigger injecotors,with a nice set of cams... say 272's, all on 93octane, with a customflash which would you say would be my best bet for my mods?
With race gas and WAI...we'll soon find out...going for 500whp or bust (blown motor)...maybe...might be selling car soon tho for...well...that depends too lol...
I really like tthe 50 Trim. the 76R is nice but I like the slightly quicker spool. Especially if you are looking for a more road equipped car. They are very close in power output.
Eric
Eric
ok now what about ur 2.3ltr motor with a BB 50trim? street car thats gets taken to the mountains, local auto-x, Road racing MAYBE HPDE. doesnt Drag race much or at all. Im really thinkinkg about doing the 2.3ltr with a BB 50trim but i just want to know what could be expected.
2.3L with a 50 trim would be WICKED, IMO. Should give you stock-like spoolup, but a LOT more power. IIRC AMS ran a 50 trim in their road-race car (2.3l) for the Winged Warrior show and race.
l8r)
l8r)
