SOS kit decisions
02-07-2011, 04:06 PM
#1
SOS kit decisions
Well, this has been a wild couple of weeks. I've got a Greddy kit and am pretty disappointed with it. I'd like to get close to 400whp in a solid, reliable street kit that I can DD, and maybe play with at the track if I ever go. I've been taking a hard look at my options, everything from upgrading the Greddy to starting over with Pfab ELT or Ptuning. I've gotta be honest, there's no easy bolt-on solution for what I want. (I'll explain that if you want more detail.)
Then I went to Caffeine and Octane yesterday and spent way too much time looking at Vettes. Those would get me 430 hp, but with higher insurance, ad valorem tax and (ugh!) a car payment. I'm so-so on the styling of those cars and I really hate making car payments. And the C7 isn't that far away, meaning I'd regret the purchase in a short time.
So I did some more research on S2000 FI options and realized SOS has exactly what I want: reliable, bolt on, easily upgradeable, and best of all, reasonably priced! So I just placed an order with them. For less than $5000 I'm getting a tuner kit with a Novi 1200 blower, 12psi pulley, SOS map sensor, and upgraded heat exchanger. I figure I'd might as well start with the 1200 in case I want more boost later.
Now, my questions. (I talked through these with SOS but thought I'd ask y'all to comment.)
- Am I making a mistake going with the 1200 blower if I'm starting at 12psi? (If I get over 375whp I'll probably stay at that boost level.)
- Would the 1220 have better low/mid response at that boost pressure?
- Can I push my RC550's (from the Greddy kit) to handle 12psi?
Then I went to Caffeine and Octane yesterday and spent way too much time looking at Vettes. Those would get me 430 hp, but with higher insurance, ad valorem tax and (ugh!) a car payment. I'm so-so on the styling of those cars and I really hate making car payments. And the C7 isn't that far away, meaning I'd regret the purchase in a short time.
So I did some more research on S2000 FI options and realized SOS has exactly what I want: reliable, bolt on, easily upgradeable, and best of all, reasonably priced! So I just placed an order with them. For less than $5000 I'm getting a tuner kit with a Novi 1200 blower, 12psi pulley, SOS map sensor, and upgraded heat exchanger. I figure I'd might as well start with the 1200 in case I want more boost later.
Now, my questions. (I talked through these with SOS but thought I'd ask y'all to comment.)
- Am I making a mistake going with the 1200 blower if I'm starting at 12psi? (If I get over 375whp I'll probably stay at that boost level.)
- Would the 1220 have better low/mid response at that boost pressure?
- Can I push my RC550's (from the Greddy kit) to handle 12psi?
02-07-2011, 05:24 PM
#3
I would stick with the 1200 because it is engine oil lubricated for one and appears to be more reliable than the self lubed units. Ditch the rc injectors and get a set of ID's, they idle and run much better than the rc's. Starting at 12psi is high boost and will likely be your limit on the HG anyway if you want to be relaible IMO. Most people start with the 5-6psi low boost option.
02-07-2011, 06:48 PM
#7
The Greddy is amazing from a spool standpoint. No lag at all, just instant boost. In 1st and 2nd it shoves really hard in the low-midrange, but then falls on its face by the time VTEC arrives. Just when you think you're about to make the jump to lightspeed, the hamster falls off the turbine wheel inside the T518Z. In other gears it's not impressive - never really seems to shove very hard.
Now that I've got FI in my veins, I knew the Greddy kit wouldn't be enough. I never dyno'd it for several reasons, but primarily because I knew it wasn't going to be on the car for very long. I spent a while studying the various upgrade threads and knew I wouldn't be able to touch 400whp with that T25 flanged manifold, even with a GT3076R hanging off it. I thought about asking Pang to make me a Greddy replacement with a T3 flange and even drew up sketches of a few custom manifolds to get around the exhaust reversion issue (inherent with log designs), but then realized I just don't have the free time to piece together a solid turbo solution.
And lately I've found myself driving like a wuss - always keeping out of boost if I was getting close to my destination, to make sure the turbo had time to cool off. Damn, that's lame. I want something I can run hard and treat like a sports car, not coddle like a fragile kit car. Less worrying about heat issues and whether my manifold might crack; more driving and enjoying the rush to redline.
Now that I've got FI in my veins, I knew the Greddy kit wouldn't be enough. I never dyno'd it for several reasons, but primarily because I knew it wasn't going to be on the car for very long. I spent a while studying the various upgrade threads and knew I wouldn't be able to touch 400whp with that T25 flanged manifold, even with a GT3076R hanging off it. I thought about asking Pang to make me a Greddy replacement with a T3 flange and even drew up sketches of a few custom manifolds to get around the exhaust reversion issue (inherent with log designs), but then realized I just don't have the free time to piece together a solid turbo solution.
And lately I've found myself driving like a wuss - always keeping out of boost if I was getting close to my destination, to make sure the turbo had time to cool off. Damn, that's lame. I want something I can run hard and treat like a sports car, not coddle like a fragile kit car. Less worrying about heat issues and whether my manifold might crack; more driving and enjoying the rush to redline.
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02-07-2011, 09:43 PM
#8
Originally Posted by s2000442,Feb 7 2011, 06:24 PM
I would stick with the 1200 because it is engine oil lubricated for one and appears to be more reliable than the self lubed units. Ditch the rc injectors and get a set of ID's, they idle and run much better than the rc's. Starting at 12psi is high boost and will likely be your limit on the HG anyway if you want to be relaible IMO. Most people start with the 5-6psi low boost option.
02-07-2011, 09:57 PM
#9
Good decision..you won't regret it. You'll hit over 400whp for sure with the 1200 at 12psi with a good tune. Not sure about responsiveness in the lower rpms, but you'll be closer to the compressor map choke line with the 1220 vs the 1200 at the same pressure ratio and compressor rpms (at 12psi). I would go 1000cc injectors.
