Results 1 to 8 of 8

Thread: Riva Stage 1

  1. #1
    Banned User
    Join Date
    Sep 2007
    Location
    USA
    Posts
    22

    Riva Stage 1

    I installed the Riva stage one kit on my 04 RXP and it made a nice change. What kind of performance increase could I expect if I installed a Riva rear exhaust kit and a Green Hulk water box?


  2. #2
    QATAR RXP TEAM qatar2000kk's Avatar
    Join Date
    Mar 2007
    Location
    (QATAR) Middl East
    Posts
    294
    You will get more speed if you go with different Impeller 14/17 will increase the take off and mid speed and you will get better air flow with shorty water box and increase in boost with the green SC .. Try it.

  3. #3
    JFizzleJR's Avatar
    Join Date
    Aug 2005
    Location
    FL
    Posts
    8,628
    +1
    808
    most likely no top speed gains from any exhaust mods. you might feel better accel. and throttle response though. tuning in for 8100 rpms with what you have now is the going to be the fastest you'll be able to go without adding air intake, supercharger, intercooler, skegs, etc..
    you could fill the rideplate holes too

  4. #4
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    Quote Originally Posted by RDB View Post
    I installed the Riva stage one kit on my 04 RXP and it made a nice change. What kind of performance increase could I expect if I installed a Riva rear exhaust kit and a Green Hulk water box?
    You don't install a Riva exhaust kit and a green hulk waterbox, the gh water box takes the place of the thru hull exhaust pipe all together. All you need is the water box and exhaust tip
    Last edited by Green Hulk; 10-08-2007 at 01:19 PM.

  5. #5
    Banned User
    Join Date
    Sep 2007
    Location
    USA
    Posts
    22
    Sorry I forgot to say.. I have filled the ride plate holes.
    Thanks for the tips.

    How long of a wait is there on the GH water boxs?

  6. #6
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    If you pre ordered and got on the list now probably 7-8 weeks.

  7. #7
    Not as long as that for RE block off's....dang...that's not as funny if you get beat to the punch by the boss.

  8. #8
    AaronC's Avatar
    Join Date
    Aug 2006
    Location
    Sacramento, CA
    Posts
    457
    +1
    4
    I gotta question. Has anyone had their exhaust manifold extrude honed or ported? I was at Maccracing 2 weeks ago and was talking to Chris about the extruded manifold on the 15f. on my lil NA ski he said 8 hp on a stock motor and it's a solid 15+ hp on his boosted 15f. Just wondering if anyone has done something like this on the RXP/RXT motor? 15 HP is a lot IMO for the $450 it'd cost to have done.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Where should trim be with riva stage one kit
    By macattack in forum 4-Tec Performance
    Replies: 3
    Last Post: 06-30-2005, 09:46 AM
  2. riva stage 1 kit problems
    By macattack in forum 4-Tec Performance
    Replies: 3
    Last Post: 06-28-2005, 05:08 PM
  3. So do we have any Riva Stage 2 Results yet?
    By Compwhiz82 in forum 4-Tec Performance
    Replies: 0
    Last Post: 06-20-2005, 11:19 PM
  4. Riva Stage 1 kit (how long does it take to install)
    By macattack in forum 4-Tec Performance
    Replies: 7
    Last Post: 06-20-2005, 04:10 PM
  5. RIVA STAGE 2 article
    By 46RXP in forum 4-Tec Performance
    Replies: 2
    Last Post: 05-29-2005, 09:09 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •