So if ran a stage ! on my car and shifted at 6500 rpm my feeling is that it would beat the stage 2 in the 1/4 mile. Look at
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01-04-2012, 08:22 PM | #46 (permalink) |
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So if ran a stage ! on my car and shifted at 6500 rpm my feeling is that it would beat the stage 2 in the 1/4 mile.
Look at the diference in torque and rwhp. it huge up to 6500 rpm. we are just going to have to wait to see what my stage 2 will do in the 1/4 mile with the 4.08 gears. What would it make with a meth kit (stage 1) ? i guess would be 450 rwhp Z
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01-04-2012, 08:38 PM | #47 (permalink) |
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^ from 5k to 6.5k rpm, it looks like an avg ~15 whp difference favoring the st1 over st2 for this particular configuration on these cars at the times they were run. of course the st2 will be tunable to higher #s... and the st2 is on average ~15 whp higher than the st1 from 6.5k to 7.5k... my guess is it would be roughly a wash with these two cars as they are set up, assuming they both shift at redline
in addition, i like the very linear acceleration that is likely to result from the st2, all the way to redline it should pull like a bmw only downside for me with the st2 is power/weight classing based upon peak power! I think I may put a rev limit in of 7k in order to meet my target |
01-05-2012, 04:32 PM | #48 (permalink) | |
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Please post the results achieved with the Nismo 1.5. Looking forward to what results can happen with a free breathing stage 1 and meth injection, drag radials and DSS axles. It's going to be a interesting spring time
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01-05-2012, 04:50 PM | #49 (permalink) | |
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In June I was running 8.2~8.7psi. Now I am hitting 9.6~10.3psi in the cold My gauge records peak boost and lets me look at it at a later time so I usually check that to ensure that I don't have a boost leak before I get shut down the car. I run her pretty hard all the time and am on the 91 octane map all the time, as I wanted a bit more safety as I always run 93 octane gas. 12K with the supercharger and she does not burn a drop of oil in 3500 miles
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01-05-2012, 05:08 PM | #50 (permalink) |
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Oh man, if there really was a stage 1.5, that would make my choice way more interesting...
Looking at those dynos though, Mike, would you say that the current stage 1 compressor side is maxed out? It really falls flat after 6500 RPMs. Man, this reminds me a lot of choosing a turbo for my STi ... big versus little.
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01-05-2012, 06:36 PM | #51 (permalink) | |
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01-06-2012, 11:04 AM | #53 (permalink) | |
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This is just my personal opinion and it applies just to the GTM SC Kit Stage 1. This is just my 2 cents and is a long read. There is more to your decision of Stage 1 or 2. There is a lot involved with going FI on the 370z. You might already know this information but it might be helpful for others making the same decision. I have been on the GTM Stage 1 kit for 5 months and have put 6k on it since the install. The only problems I have encountered with the kit were 2 oil leaks and a slight idle problem. Other than that, knock on wood, I have been extremely happy with GTM and the SC impresses me every time I drive the car. Decisions, decisions …. Several people have asked me about the SC decision and this is what I tell them. You have to make some important decisions about the direction of the performance of your 370 up front. If you start out with the standard bolt-ons and then go FI, you are going to waste a lot of cash. So up front, either decide to stay NA or go FI. I also like the fact that the Stage 1 is low impact on the car. You have to look to even know it is installed. It looks like aftermarket air intakes. 75% of the people who look in my engine bay cannot find the SC. No kidding …. The next decision is you have to make a personal commitment to the additional cost of the supplemental parts and potential labor to support the GTM SC kit. This is no negative on GTM, but they sell a turn-key FI kit. That kit includes all of the FI parts, but does include the supplemental accessories I think are necessary to help ensure longevity of the motor. Again, this is just my opinion. Supplemental Parts The fact of the matter is the 370z runs on the hot side for coolant and oil temperatures. You as the customer need to decide what you want to install to keep your fluids at an acceptable level. I live in Texas and we had record heat last summer; thus, my car suffered with some high oil temps. GTM does offer a great selection of parts to supplement the kit. I am specifically talking about upgraded cooling fans, shrouds, radiator, and a myriad of oil cooling solutions. I think it would be a good business decision to add options to the SC kit that include some of these cooling solutions at a reduced price rather than adding them after the fact. I know some of these parts are new and just released so maybe that is in the works. So I decided up front I was going with the GTM SC kit. The Stage 2 had just been released but I went with the Stage 1 for several reasons.
Maintenance The next commitment is a higher standard for regular or routine maintenance. If you are used to driving your car around and doing little to no maintenance, any FI is probably not for you. What do I mean by higher standard of maintenance?
The whole point I am trying to make is when a NA car is stock, you can neglect checking a lot of things and the car still runs relatively well for a long time. With bolt-ons, other than from an emissions perspective, there is not a whole lot of maintenance required on the parts. With any FI install, there is a lot more going on, so you as the responsible owner must decide if you are in or out or what has to be maintained to keep the grin in your face when you mash the accelerator. Hope this helps with your decision. GTM is a great vendor and source of information. Sam and Mike have been most helpful with me during the entire process including service after the sale which is very important to me. I am right at 380WHP on a conservative tune from SAM on a dyno pull in 115 degree heat. I hope to have a full tune done in the late winter or spring and come closer to the 400WHP mark. |
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01-06-2012, 11:08 AM | #54 (permalink) |
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Great post wind.zero
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01-06-2012, 07:02 PM | #57 (permalink) |
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I was lucky that I had a chance to get a ride with wind.zero's car about 2-3 weeks ago.
Once the car launched, first 1 second it goes like my z (310whp), but I could feel a great torque kicking in around 3.5~4k rpm. He did a couple of 40mph starting, and this time it was a totally different feeling from the beginning since he could launch from above 3500 rpm. Throughout the first and second gear, I could hear somewhat unpleasant sound of S/C, but it was not that bad. I am sure that I will get used to it just like road noise from the stock 370z. Breathing sounds are awesome. I personally like it more than bov. It seems very fun to drive as well as fun to ride in the passenger seat. We were literally laughing all the time during the drive. For those who may think S/C don't have enough torque to put you deep in the seat, but it was not true. It was as fun as a turbocharged car to me (like stock Evo/sti) Overall, it was a great experience for me to decide to go with S/C stage 1 later on. I was debating between S/C and TT both stage 1, and I was very concerned of torque rather than horsepower. For me, who don't really go to track, S/C stage 1 will give me enough power to put a smile on my face. It is very true that you will get used to the power within 2-3 weeks anyway. For instance, I have a friend who used to have R35 HKS 600 kit with 650 awhp, and recently he is done with HKS 800 with 4.2L engine upgrade which now makes 960 awhp. After 10 days of driving, he is thirsty of more power. The point here is that, you will feel like wanting more power anyway. Think of what you need your car for, but personally, s/c stage 1 sounds enough for me as a DD.
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01-06-2012, 09:37 PM | #58 (permalink) |
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wind.zero,
excellent post, probably the best review I've seen so far for this kit. I'll be looking forward to next review when the SC oil gets changed out!
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01-13-2012, 04:16 AM | #60 (permalink) |
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Here's a question some of you might hate but it means the world to me:
0-62mph & 62-95mph Stage I or Stage II? Oh and if the result it that one kit is better for one of the above speed ranges than the other, I'm going to bang my head against a wall until it bleeds. |
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