08-12-2009, 12:52 AM #1
FZR Riva stage 1 with 13/22r DF: 67.3 GPS
Went to Lake Havasu this weekend to do some riding with the new mods. Air 109-111 degrees, water temp 85. Took me about 8 runs to get 67.3 (all other runs were between 65.7 and 66.9), then I got on my buddy's new STOCK FZR and ran his 66.5 on first run. WTF.
My ski definately has better hookup and power out of the hole and through the mid range as compared to stock, it just seemed like I was having to work way too hard to get above even 66 mph as we rode for the 3 days that we were there. We didn't have perfect conditions by any means, but we did have a few good open runs, enough to get an indication of speeds at a given condition. RPM's were around 7600. The ski ran great, I was just hoping for more top end. Maybe my size (6'7", 245 lbs) has something to do with it, I don't know.
I would like to be in the 70 - 72 mph range and I thought I would be there with these mods. I was stoked with the holeshot and midrange power up to 63 ish mph, I was just hoping for more top speed.
After sending Jerry a few emails, Jerry suggested I take out the shim between the rideplate and hull and I actually pulled my ski out on the last day, laying there in the asphalt parking lot, 110 fricken degrees, trying to pull the ride plate off and take the shims out but gave up when it became apparent that it wasn't just undoing 4 bolts, and my back was beginning to fricken blister from the heat.
I guess I gotta keep modding....
What's it gonna take to get me into the 70 - 72 range now?
Jerry, sorry for the emails from Havasu. I promise I will never send you another email while sober.
08-12-2009, 01:10 AM #2
I'll be testing the exact same mods this weekend at Lake mohave! I tested my ski last weekend in 110 heat with the same mods minus the impeller - was running the stocker. I was all over the rev limiter at max 7720 rpms. I think anything over 7650 makes the rev limiters kick in. My ski seemed slower than stock and was flat from 3/4 throttle to wide open. I will test the 13/22r this weekend! Riva states 70 -71 at 7600 rpms w/ stage 1!
08-12-2009, 01:28 AM #3
08-12-2009, 02:25 AM #4
Man, that's the same setup I'm planning to do. I want to be in the low 70s too with the Riva Stage 1. That's not good and the thing is that we need these mods to be able to move to the next level. I'll be heading to Black Meadows Landing near Lake Havasu for Labor Day weekend. I won't have the Riva stage 1 on, just the intake grate. I'll see what #s I get. This will be the first time I'll be riding my FZR. I can't wait to see what this animal feels like.
08-12-2009, 05:33 AM #5
- Join Date
- Oct 2006
- melrose ma
it was 100+ the intercooler was heat soaked and it kept you from getting any gains from what you did to the boat......with your mods you suck more air and ........its super hot on the baby intercooler......just my opinion
08-12-2009, 05:51 AM #6
naaaaaaaaa they just got punk'd by riva again lol
anyone who states a speed for a kit is not doin their homework well enough for three dimensional variables.
but what would I know
08-12-2009, 09:50 AM #7
I realize the extreme heat comes into play but we are turning the RPM's!. I was turning 7720 RPM's (PET tach) in 110 degree heat with all stage 1 mods and stock impeller. I will see what happens with the 13/22r this weekend. Should be identical conditions.
Last edited by OCFZR; 08-12-2009 at 09:53 AM. Reason: spelling
08-12-2009, 10:39 AM #8
- Join Date
- Dec 2007
08-12-2009, 10:59 AM #9
you need a air intake with 100% fresh air so the IC doesnt have to work so hard. It will make over a 100RPM diff and add some vents to the engine compartment.
this can help
08-12-2009, 11:04 AM #10
My curiosity is the fact that Riva claims 70-71 with stage one. I'd be happy at 71-72. Right now I'm 4-5 mph below my goal while already adding the Riva Stage 1 with their recommended prop. If I do the wheel, intercooler upgrade and bov from R&D, OR.. The Riva ecu with s/c wheel with BOV, How are we sure we'll get to 72 mph?
Yeah, I know, there are no gaurantees in life. Its just that for those of us who are expecting a certain result from certain mods (as claimed by Riva) and not getting them, how can we expect the NEXT mod to have a different result than the first go 'round. It sure seems like 5 mph more is a long way away.....
I don't mind spending the money if I get the results. I just want the "claimed" results.
And I do love this ski....
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