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Thread: 67mm CFM TB, Not what I expected? Reply to Thread
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Topic Review (Newest First)
04-30-2013 07:45 PM
AllCarFan Right now, i hate mine with a cossie intake. I gotta get with Tom and hopefully get the tune dialed in. Mine bogs so badly that I cant get out into traffic unless I have PLENTY of room. anything below 3000rpm and the car literally, will throw me forward in the seat if I give it too much gas.
04-29-2013 12:36 AM
felixthecat
Quote:
Originally Posted by mddunlap03 View Post
well you probably lose some low end jump due to the velocity loss
It really gives you more punch, great for onramps & such. I found that it was to sensitive, for bumper to bumper traffic. I'm not sure if it was the stiffer spring pressure or the geomemetry of the linkage, as I didn't have it on long. My wife asked "What'd you do to the foci"? All its going is flowing air, Its not like you bolted up a 780 double pump on a mild small block.
04-28-2013 09:24 PM
mddunlap03 well you probably lose some low end jump due to the velocity loss
04-08-2013 12:43 PM
WSkobra
Quote:
Originally Posted by USARice View Post
Yup, being tuned made all the difference.

Sent from Gods Country
Yeah I bet. Only way to get the true potential power out of any part is by tuning your car. Sucks that we have to but if we really want that power gain then we will need to tune our cars. I still cannot wait for my new motor swap. Just on the swap for the whp I am estimating 155whp on the stock motor before tuning and adding more bolt ons.
04-07-2013 11:23 AM
USARice Yup, being tuned made all the difference.

Sent from Gods Country
04-05-2013 05:35 PM
WSkobra That's weird. Mine felt like it had much better power in midrange but did not kill my bottom end torque. In fact I think my bottom end torque was better. Although the only bad part I found with it is that once its on and the computer relearns it will adjust for fue due to more air coming in. I put my car in the dyno last weekend and found out because of the throttle body the computer adjusted for too much fuel and now my car runs on the rich side, a little to rich to be honest. I recommend to anyone to get the car tuned when doing this upgrade so you can get the max potential power out of the part but you can also adjust the a/f better then the ecu and getting running perfect.
03-24-2013 05:58 PM
USARice
Quote:
Originally Posted by 05blkfucusdvr View Post
I couldnt agree more. Contact William at CFM. I have the same throttle body on my motor. Even though the motor is completely built i have a little bit of lag in the lower range. Its almost like the ecu cannot add enough fuel in time to keep up with the increased air intake and responsiveness. Another thing I can suggest is getting the ECU tuned to make up for the difference. I have not yet tuned my car yet but I know when I do it will be night and day. Good luck man.
Tuned made a world of difference. I am on my 3rd and each has been better than the one before. Tom works wonders.

Sent from Gods Country
03-24-2013 03:55 PM
05blkfucusdvr
Quote:
Originally Posted by macdiesel View Post
That's interesting. Gasket and tps installed correctly, no vacuum leaks? Did you check to see if the butterfly over rotates? When I put mine on it was an instant improvement. I would contact William at cfm.
I couldnt agree more. Contact William at CFM. I have the same throttle body on my motor. Even though the motor is completely built i have a little bit of lag in the lower range. Its almost like the ecu cannot add enough fuel in time to keep up with the increased air intake and responsiveness. Another thing I can suggest is getting the ECU tuned to make up for the difference. I have not yet tuned my car yet but I know when I do it will be night and day. Good luck man.
03-13-2013 07:15 PM
USARice If I do cams this summer I will probably just do Stage 1. I don't want to invest a lot in a motor I may replace next summer and I want to be able to sell it as a whole. I would love some Stage 3 with a loping idle. Saw a YouTube video of an SRT4 with them and the sound was music to my ears. I had never heard a cammed 4 banger but it sounded sweet. Impractical, but sweet.

Sent from Gods Country
03-13-2013 07:12 PM
USARice We've already talked about my motor plans you silly cat! I had a BSD before on my old motor, I wouldn't drop the pan just for that but since I have to drop it to put the baffle in and they come as a package from GP-WERKS.

When I do the clutch (many miles before I have to worry about that.....my drivetrain is only at 55k) I will do some form of LSD and hopefully I will have found a set of 4.06 gears by then. That's the kind of parts I buy and lock up in my garage for when I get around to using them because they're never for sale used when you need them and AFAIK you can't buy the 4.06 gears new anymore. Clutchwise I will go with a Centerforce Dual Friction. I had one in my tRacer and used it for AutoX and never had an issue. I absolutely loved that clutch.

Sent from Gods Country
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