voodoo

Hey Guys,

Trying to figure how difficult this install is. I'd like to tackle it in my garage one night after work, but I have heard that it can be pretty tedious. Anybody have first hand experience?

Thanks!

Ryan

user 72902

I'd say plan on 2 to 3 hours - the hardest part is getting the rubber boots back over each side of the plenum.

GOLENJEEPTJ

1-2 hrs. and it's really a piece of cake! As far as the intake hosing just use a little silicone on the throats of the plenum or the ends of the hose's to make an easy slip on before tightening the hose clamps.

voodoo

Thanks guys!

911wally

Jeremy Hazeltine

voodoo

Petza914

+1

There will be some cursing, but you'll get it. Make sure to orient the clamps in a convenient direction for access.

Once installed, if you want to speed up the process of the DME adjusting to the improved airflow, disconnect the battery for 10 minutes, which will reset the fuel trims, then on your next drive, warm the car up properly, then run her harder and to higher RPMs.

voodoo

Thanks, Pete!

rwdds

You'll notice more engine sound at WOT and the powerband will open up a bit in 3-4 k range. Great mod.

bhvrdr

https://www.6speedonline.com/forums/...ml#post1803119

https://www.6speedonline.com/forums/...ml#post1808059


https://www.6speedonline.com/forums/...ml#post3111834


https://rennlist.com/forums/997-foru...l#post14792373


With all the past mixed reslts​ ​​​​​​it would be cool to see some before and after acceleratio testing if you get a chance! Good luck

mike

voodoo

I will have my butt dyno re-calibrated prior to install.

I'd really like to dyno after the plenum and TB and then after the tune again. How's that going to look on a DME report though? It's a great safety factor built in as a buyer to see if the car was thrashed, but sort of sucks if you are an enthusiast who likes to modify things and the car could be sold down the road.

bhvrdr

Why would the dyno impact the DME report? You're doing a 4th gear pull to redline, not over-revving the car. I'd say I probably do a 4th gear pull to redline around 4x/week or so.

Dynos are really tough to get accurately done anyways. You need a really good operator who knows how your DME works with respect to vehicle functions. For example, on the pcars, ECT is very important to keep stable. It could sway results by 15hp or more i'd guess. You really need to be able to directly monitor and/or control ECT, IAT, EGT in order to get valid results and even then it helps to do multiple baseline and multiple "modified" runs to get an idea.

In honesty a much better approach is to buy a vbox or even the new dragy which are performance meters that are known to be every bit as accurate as NHRA track timing data.

With power mods, you dont really want to know how the car performs on a dyno with fans blowing on it. You want to know how the power mods impact its acceleration on the streets/track. To do this you simply need to measure.... ACCELERATION... on the streets or on a track. Novel idea right

Mike

voodoo

Good point. I just don't know know weird people get about each rev range. I don't really care unless it was a money shift.

I have access to a couple really good tuners in the area who are up to speed with everything you mentioned. It's never apples to apples, but I could use the same dyno (dynapak), similar weather, similar operating temp, etc and it could be decent comparison.

bhvrdr

That would be a real asset if you have the time to get it done. I look forward to your results. Best of luck with it!

Mike