Needs Top-End POWER
Feb 26, 2010, 08:45 PM
#1
Evolving Member
Thread Starter
iTrader: (5)
Join Date: Nov 2009
Location: New Hampshire
Posts: 127
Likes: 0
Received 0 Likes
on
0 Posts
Needs Top-End POWER
Coming from a S/C S2000 I am definitely missing the top end power with my VIII MR (I know apples-oranges) but How does one go about making big top end power with the VIII keeping the stock turbo and daily drivable......? 
Feb 27, 2010, 06:08 AM
#6
Evolved Member
iTrader: (33)
Join Date: Jul 2002
Location: Raleigh, Transplanted from Toronto, Canada
Posts: 5,313
Likes: 0
Received 1 Like
on
1 Post
Fuel pump, injectors, stockframe turbo (BBK, HTA FP Green), E85, some Kelford 272/GSC S2's and a good tuner.
Car will be a different animal. I have raped many of a porche, vette's and even 1 viper on that setup.
Car will be a different animal. I have raped many of a porche, vette's and even 1 viper on that setup.
Feb 27, 2010, 08:02 AM
#8
Evolved Member
iTrader: (22)
Join Date: Nov 2003
Location: Northern KY near Cincy
Posts: 2,408
Likes: 0
Received 6 Likes
on
6 Posts
If you want top end in an evo engine you will sacrifice low and mid range power. Top end power will come at the cost of lag.
If you really want the car to be fun to drive, tune it for the biggest power under the curve. After all, most of us spend the majority of driving in the mid rpm range, not the top end.
As others have suggested, cams will be in order. You really can't go wrong here. All cams help make power, but the ranges are different.
Turbo selection....well this is a different story. The larger turbos will certainly help in your top end goals, but the spool time will, in my opinion, make for a very "peaky" feel of a car. No power and the all of a sudden BAM massive power.
FP Green, or Red will net very good results without much loss in quick spool.
E85 will certainly help as well.
Search around and find the parts that will support your goal. We all have opinions on how you should go about it. Ultimately it is up to you on how you accomplish your goal.
If you really want the car to be fun to drive, tune it for the biggest power under the curve. After all, most of us spend the majority of driving in the mid rpm range, not the top end.
As others have suggested, cams will be in order. You really can't go wrong here. All cams help make power, but the ranges are different.
Turbo selection....well this is a different story. The larger turbos will certainly help in your top end goals, but the spool time will, in my opinion, make for a very "peaky" feel of a car. No power and the all of a sudden BAM massive power.
FP Green, or Red will net very good results without much loss in quick spool.
E85 will certainly help as well.
Search around and find the parts that will support your goal. We all have opinions on how you should go about it. Ultimately it is up to you on how you accomplish your goal.
Feb 27, 2010, 08:08 AM
#9
Depending on what current modifications you already have I suggest,
cams (kelford 272/272 show the biggest power gain for evo 8s)
fuel pump (walbro 255)
turn up the boost (manual boost controller)
and a tune. Larger injectors are not really needed unless you upgrade the turbo or want to tune it for e-85.
cams (kelford 272/272 show the biggest power gain for evo 8s)
fuel pump (walbro 255)
turn up the boost (manual boost controller)
and a tune. Larger injectors are not really needed unless you upgrade the turbo or want to tune it for e-85.
