Long rod 2.0 vs standard 2.0
Jan 5, 2012, 01:20 PM
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Long rod 2.0 vs standard 2.0
Im in the middle of a build with my evo 8r at the moment I am looking at long Rod setup and wondering if I can have some people's input on there I'm looking to make 800+ power is the longer rod definitely going to be more reliable way? Thanks guys
Jan 5, 2012, 04:14 PM
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Reaving the car is fun, when you can pull longer in the gears , 9500 PRM
chouse a crank , that have small nocks and match it whit the right rods , and you will make som good power ,
the other thing is a strocker enginge , but then you wont be able to rev that mutch ,
but then you will make power more easy whit a big turbo , precition 6262
Think that 800 hp is not cheap , you will need a lot of maintenss , a big fule system , intake , mainfold , indjectors pumps , enginge management , tune , IC , e.c.t
I dont wanna broke your dreams but 500 + is more driveable on the streets , and you will have more fun , and less headeck , and more use of your car
chouse a crank , that have small nocks and match it whit the right rods , and you will make som good power ,
the other thing is a strocker enginge , but then you wont be able to rev that mutch ,
but then you will make power more easy whit a big turbo , precition 6262
Think that 800 hp is not cheap , you will need a lot of maintenss , a big fule system , intake , mainfold , indjectors pumps , enginge management , tune , IC , e.c.t
I dont wanna broke your dreams but 500 + is more driveable on the streets , and you will have more fun , and less headeck , and more use of your car
Jan 5, 2012, 05:49 PM
#5
Standard rod is capable of 11,000k...repeatedly. If that is really a consideration, as in you have a turbo that makes power at 9800 (42R) and want to have a full powerband then maybe. There is always a a place for everything. For smaller turbos that might peak at 8k and only be revved to 9300-9400 it is not really a consideration. In some cases based on the head port, it might actually start to hurt performance. It is most likely rare but I experienced it personally so I know it can happen.
Jan 5, 2012, 06:06 PM
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Well the turbo I'm putting on the car is either hta3586 or most deff 6766 my question is what build should I do 2.0 or longrod what is most common build... I'm looking for 9 sec consistant car thanks guys If I need that lil more rpm for the trap I wanna make sure I can aleast rev a 2.0 to 10k with supporting mods I am running stock crank
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Jan 6, 2012, 06:22 PM
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Anymore input my question is is it worth doing long rod or leaving standard basically I'm building a motor to Handel more power in future....
Jan 7, 2012, 09:30 AM
#9
For a 156mm long rod setup in a 4g63 the advantages over a regular 2.0L are:
Better rod ratio of 1.77 compared to a 2.0L 150mm's rod ratio of 1.7
Better rod angle so less loading (less friction too) on the bores and bearings.
Longer dwell time at TDC = increased VE.
In practice long rod motors are a safer way of shifting the power band higher up the rev range. This advantage becomes more apparent with the larger turbo set-ups.
Better rod ratio of 1.77 compared to a 2.0L 150mm's rod ratio of 1.7
Better rod angle so less loading (less friction too) on the bores and bearings.
Longer dwell time at TDC = increased VE.
In practice long rod motors are a safer way of shifting the power band higher up the rev range. This advantage becomes more apparent with the larger turbo set-ups.
Jan 7, 2012, 12:07 PM
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Do you think it's something for me to consider does every hi hp build do long rod2.0
For a 156mm long rod setup in a 4g63 the advantages over a regular 2.0L are:
Better rod ratio of 1.77 compared to a 2.0L 150mm's rod ratio of 1.7
Better rod angle so less loading (less friction too) on the bores and bearings.
Longer dwell time at TDC = increased VE.
In practice long rod motors are a safer way of shifting the power band higher up the rev range. This advantage becomes more apparent with the larger turbo set-ups.
Better rod ratio of 1.77 compared to a 2.0L 150mm's rod ratio of 1.7
Better rod angle so less loading (less friction too) on the bores and bearings.
Longer dwell time at TDC = increased VE.
In practice long rod motors are a safer way of shifting the power band higher up the rev range. This advantage becomes more apparent with the larger turbo set-ups.
Jan 7, 2012, 12:31 PM
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Leave the LR's for the 2.4L motors. There is no point in a 2.0L. Std built 2.0 revs to 11,000 but oil pump speed, oil starvation etc are bigger considerations than anything at that point
