RPi Air box plugs: New Dyno

RPIpower · 11th January 2008, 00:56

Marshall was here and we were able to get some solid numbers on the headers and the air box plugs.

Here is the dyno history (steve, feel free to correct me if I am wrong):

Session 1: 407whp
- bmc filters, charc. filters removed, evo pulleys, evo diff, dinan exhaust

Session 2: 421whp
- same as above + rpi ram scoops

Session 3/4: 433whp
- same as above + evo headers

Here is the graph for session 3/4 with and without the airbox plugs. Peak power was the same basically but we saw a gain in the low and midrange like last time. There is about a 9whp gain around 5000rpm.

Brav · 11th January 2008, 01:14

Plugs and scoops... should have known we could achieve such similar results from the Home and Garden section as headers alone!!

Congrats on bringing another cost effective product to market.

keang24 · 11th January 2008, 01:32

12hp gain on headers

He must be heart-broken right now

I recalled last time with hole plug, he lose the top end hp and gain low/mid. And now same topend and gain low/mid.

I want to do it too

aznronin · 11th January 2008, 01:37

can i get my plugs powder coated to match my hair plugs?

aznronin · 11th January 2008, 01:38

for plug support call Eloy @ RPI...there thats a plug for air plugs

aznronin · 11th January 2008, 01:39

sorry the writers are on strike

RPIpower · 11th January 2008, 01:43

Quote:

Originally Posted by keang24

12hp gain on headers

He must be heart-broken right now

I recalled last time with hole plug, he lose the top end hp and gain low/mid. And now same topend and gain low/mid.

I want to do it too

The last time we dynod with the plugs we did not do a before and after the same day. We only based the numbers off a previous session. Remember, the gains from either mods whether its 12whp or not, is that the gains are throughout the entire powerband. Peak power doesnt mean as much as how the powerband has changed.

Kenny, we all know you want to get your holes plugged.

RPIpower · 11th January 2008, 01:46

Quote:

Originally Posted by aznronin

can i get my plugs powder coated to match my hair plugs?

I was trying to get Monica to get some hair plugs/extensions to match the air box plugs but she said, "no".

aznronin · 11th January 2008, 01:58

Quote:

Originally Posted by RPIpower

I was trying to get Monica to get some hair plugs/extensions to match the air box plugs but she said, "no".

have her get the plugs then put some scoops on head, turn on the fan and let her run on the dyno.

RPIpower · 11th January 2008, 02:01

Quote:

Originally Posted by aznronin

have her get the plugs then put some scoops on head, turn on the fan and let her run on the dyno.

Hehe,...well Open House is scheduled for FEb. 9. It M5baller or Keang24 wants, we can strap a bicycle to the dyno and see what he can dish out (Im dead serious about this).