Okay here goes, in 4th or 5th gear if I have it at say 75% throttle I get bad fluttering where my boost jumps between 1 bar and 1.5 I have no problems at lower throttle or WOT. I had an hks bov and ditched it for the Forge, same problem and yes its installed right and recirculated. All input is appreciated.

 

It's standard part-throttle surging. YOu need to be full throttle. You can't try to build boost at part throttle in high gears, or it flutters like that with a strong BOV.

 

Makes sense cause with the 05 stocker no problems. Should I back down the Forge's spring setting because I would like to cruise on the highway without the surge. My friend has a spare JDM MR bov I might try that. I think I might have to change up the driving style. Warr are you still running the ACT clutch? Stocker is going and I was looking to the ACT xtreme hd 6 puck. I got 350wtrq and alky is soon to come.

 

You can cruise on the highway without surge. You just have to drive it properly. You can't be trying to accelerate with 75% throttle, or you just have to deal with the results. I prefer to have my RS very tight in order to fully hold my 26.5 daily psi, so I don't mind dealing with the consequences of having a stiff BOV. I just change my driving style to match by not doing a lot of part-throttle accelerating (increasing and decreasing). You can set it to full softness if you don't mind losing boost holding capacity. The JDM MR DV does the same thing - it's just how things work. The stock plastic BOV leaks at 13psi, so it's less prone to display this phenomenon.

No, I hated my ACT, and it gave out after 9500 miles. I now have the Exedy stg2 4-puck cerametallic, and I love it. A little harsh for starting in 1st gear from a stop, but excellent for all forms of racing so far...

 

How many miles on the exedy thus far? Is it price comparable to the ACT? Thanks for the help/info/responses.

 

Around 3000 with 30+ drag runs all 12.6 or better (kinda slow, but good for this altitude) with every shift powershifted with ease, 4 track days (road course), and 3-4 autocrosses (not really much shifting, though).

I daily drive it, and it's great for me, but it would be a little iffy for someone who sat in stop'n'go traffic daily. That would be the case for any puck clutch like this, though...

Not sure on the ACT price, but this combo is $950 shipped, and that includes the Exedy lightweight chromoly flywheel.

 

how is it pushing the cluch in and is it better the the twin. im looking for a cluch soon and was going with the twin. i mostly drag the car so what would ork best. in the end im hoping for about 450 to 500 hp so id like something to hold that. how is what you got gonna work? where can i fond that cluch you got

 

It's not better than the twin. I recommend the Twin HD first, but if you want to spend less than $1000, then I recommend my stg2 version. It's a heavy pressure plate like the Exedy: 3010lbs. This clutch is great for drag as it holds all the power on launch and then can be powershifted easily in each gear. With 450-500whp (are you really sure about that, Dan???), you should get a Twin.

You can get this clutch from Total D, an EvoM vendor. Probably should just call to ask about it, since I don't think it's listed on the site.

 

well i dont have that power now. sorry if i miss typed. but in the end meening when im done with my car i hope to be around 450 500hp. and will need a cluch to hld me there. i was gonna go act but i hate problems. so do most people.

but for now 375hp is about where i should be after i install some more stuff and get a tune. so you think the cluch you got will be fine for me. or should i just come up with the cash and get the twin. o and how streetable is your cluch. the twin is suposibly god right?

 

Just get the Twin HD if you're going to really have 375wtq now and 450-500 later. Remember, WHP doesn't matter with a clutch - just torque holding capacity.

 

what is the holding capacity with the clutch you have Warr?

 

I hate my ACT TOO, I have the ACT HDSS, but i think i might just change the disk to a 6 puck sprung center and keep the same pressure plate and Flywheel, just do a quick regrind, I have about 19k on my ACT, But it sucks at life and i hate having to ALWAYS adjust the clutch, gets to be a PITA after a while, now it sitcks in high rpms, But maybe a quick flush and of the tranny fuild and the clutch/ brake fuild, and switching to the single disk will change all that. :-)


450-500 WHP is manageable for every day use, But I dont see the point of going with the EXedy if thats you plan, its 1899 Brand new and 600 ti rebuild, Im all set at those prices id just keep on buyin an ACT clutch Kit.