Most bolt-ons + RevUp Osiris tune @ Church Automotive 299.8 hp and 284.5 lb*ft
Joined: Apr 2005
Posts: 95
Likes: 1
From: San Diego, CA
Most bolt-ons + RevUp Osiris tune @ Church Automotive 299.8 hp and 284.5 lb*ft
Was excited at my results and just wanted to post them up. My previous dynos from exhaust and up were done on a dynojet, so I unfortunately do not have direct comparisons to make.
My last dynojet numbers were under the following conditions:
400 miles on new motor
KN filter, plenum spacer, port-matched non-RevUp lower collectors and manifold, JWT flywheel, HKS exhaust
These dynapack numbers were under the folllowing conditions:
4000 miles on new motor
Same mods above + Berk Tech HFCs
These formed the baseline. There was no tuning done prior to today.
Green bands show baseline, Pink shows heatsoaked (tuned), Blue shows run after a ten minute cooling period (tuned)
I probably have an exhaust leak so it looks leaner than it actually is. Would have rather they used a wideband instead of sniffer, but oh well.
Original dyno runs: Linky
My last dynojet numbers were under the following conditions:
400 miles on new motor
KN filter, plenum spacer, port-matched non-RevUp lower collectors and manifold, JWT flywheel, HKS exhaust
These dynapack numbers were under the folllowing conditions:
4000 miles on new motor
Same mods above + Berk Tech HFCs
These formed the baseline. There was no tuning done prior to today.
Green bands show baseline, Pink shows heatsoaked (tuned), Blue shows run after a ten minute cooling period (tuned)
I probably have an exhaust leak so it looks leaner than it actually is. Would have rather they used a wideband instead of sniffer, but oh well.
Original dyno runs: Linky
Last edited by whiteg35c2; Mar 23, 2010 at 09:56 PM.
Nice gains!
I made just slightly lower.
Do you think your port matched manifolds made a difference? I always wanted to do it to avoid getting headers and avoid smog issues.
How is the JWT flywheel? I got my V2 replacement approved at Riverside and wondering if I should get the clutch and flywheel replaced at the same time.
How does the new motor compare to the old one?
I made just slightly lower.
Do you think your port matched manifolds made a difference? I always wanted to do it to avoid getting headers and avoid smog issues.
How is the JWT flywheel? I got my V2 replacement approved at Riverside and wondering if I should get the clutch and flywheel replaced at the same time.
How does the new motor compare to the old one?
Joined: Apr 2005
Posts: 95
Likes: 1
From: San Diego, CA
New motor = fantastic. I did the super hard break in during the first 20 miles as detailed on http://www.mototuneusa.com/break_in_secrets.htm. Whether its better or not who knows, but it worked for me.
When they do the flywheel install, ensure they follow the directions to torque, unscrew, add loctite and retorque as detailed on the one random sheet of instructions that comes with the JWT flywheel. My crankshaft bolts got stripped because the tech I took it to at Tustin Infiniti just impact wrenched them on and ignored the instructions. I also recommend you buy new crankshaft bolts before they start. It gets loooudd when its hot. Barely noticeable compared to stock when its at moderate or cold temps.
Port matching was recommended by a friend and he and I both got solid gains, but i'm sure its just a reproduction of what the MREV2 is, just taken a step further because it includes grinding the intake manifold as well.
When they do the flywheel install, ensure they follow the directions to torque, unscrew, add loctite and retorque as detailed on the one random sheet of instructions that comes with the JWT flywheel. My crankshaft bolts got stripped because the tech I took it to at Tustin Infiniti just impact wrenched them on and ignored the instructions. I also recommend you buy new crankshaft bolts before they start. It gets loooudd when its hot. Barely noticeable compared to stock when its at moderate or cold temps.
Port matching was recommended by a friend and he and I both got solid gains, but i'm sure its just a reproduction of what the MREV2 is, just taken a step further because it includes grinding the intake manifold as well.
I did the super hard break in during the first 20 miles as detailed on http://www.mototuneusa.com/break_in_secrets.htm.
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Joined: Apr 2005
Posts: 95
Likes: 1
From: San Diego, CA
I was really tempted to go buy a block of ice to put on the plenum... but then I figure I'm probably -10 hp anyways vs a DynoJet 
so I'll save the ice for when I'm around 309.8. 
so I'll save the ice for when I'm around 309.8.
Joined: Apr 2005
Posts: 95
Likes: 1
From: San Diego, CA
Yup, well aware about the Dynapack. Taking the weight of both the rim and the tire and using the calculations given on their website for the difference in torque readings at the hub vs at the tire like a DynoJet, it shows that at 7000 rpm, there is about an 8.40 hp difference between a Dynapack and a Dynojet. Conservatively we can just state there is about a 10 hp diff. On the extreme end, there has been said there is a 7% diff, so 278.8 hp. Pick that or 288.8. Either number is good enough for me and my mods =).
+1, I'd be interested to see what your car put out at Technosquare, heart breaker dyno.
I'd be surprised if you broke 275whp on dynojet sae, but that isn't the point......good gains. LOL at Technosquare being a heartbreaker........try getting on injected, forged, or function's uncorrected dynodynamics......stock 03-05 210ish at the wheels. I know people who have wanted to sell their cars after being on them.
Joined: Apr 2005
Posts: 95
Likes: 1
From: San Diego, CA
I just had my entire rear interior stripped to do a little dynamat squashing of some rattles. Would have loved to go to the track but just tooooooo busy. Plus I'm not very experienced at launching. Maybe I'll do a little learning on a quiet road somewhere and then get some real quarter mile numbers. =)
