Precision 6765SP and 6262SP
10-12-2009, 01:47 PM
#11
Thread Starter
This is some good info and thanks for posting guys. Like I stated before, at 32 psi on the 6262, peter I believe was at full boost around 5300 rpm. If the 6262 has been proven to 850 whp on the s, than that's what ill be getting. I just don't understand why its rating is only 700 crank hp, which would be about 620 whp, if people are getting 850 whp out of it. It just makes no sense to me. Lol
I decided on staying with the 3mm hg after talking about it to my tuner and others. In the long run, whether running race fuel or not, the 3mm hg will help the engine live longer on big power.
Yeah, I already know about cft's fuel kit and I like it except the fact of using a surge tank and external pumps. I'd rather stay in the stock tank with pumps if I can.
I decided on staying with the 3mm hg after talking about it to my tuner and others. In the long run, whether running race fuel or not, the 3mm hg will help the engine live longer on big power.
Yeah, I already know about cft's fuel kit and I like it except the fact of using a surge tank and external pumps. I'd rather stay in the stock tank with pumps if I can.
10-12-2009, 02:03 PM
#12
Thread Starter
Oh yeah, I did consider the 6265 but it only spools slower than the 6262 and puts down the same power. I've seen tests on evo's done between the 6262 and 6265 and the 6262 ftw for sure.
10-12-2009, 05:32 PM
#13
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Spoolin, the 700hp rating isnt an exact science. Its an estimate, and its very conservative. High compression rations(static or boosted) are more efficient, so thats why some guys are making insane power on turbos rated for much less.
The 6262 and 6265 maxing at the same power levels proves that you dont need the biggest hotside to make power, like in the case of the 5965 and 6165. I had a discussion with Inline Pro about this one time and they insisted the big hotside was the best option.
The 6262 and 6265 maxing at the same power levels proves that you dont need the biggest hotside to make power, like in the case of the 5965 and 6165. I had a discussion with Inline Pro about this one time and they insisted the big hotside was the best option.
10-12-2009, 07:59 PM
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I spoke to CFT today and they are using a 6262 on Fernando's car that just made 835whp@30psi. This is just nuts!! I am soo glad I went with the 6262.
Sound Performance in Chicago ran a pair of 6262 on their drag 350z. They did see gains when they went up to the 6265. I can not remember the exact details off hand though.
ScorpionT, when I spoke to inline they told me the same thing. They said they wont go smaller then a 65 wheel. They claimed anything smaller would start to drop off towards redline.
Spoolin what do you not like about having a surge tank. Just another safety factor. Also I would imagine that it has more capability then the full blown set up.
Seth you are only considering where you hit full boost. What about the power difference under the curve. You were making 50-80whp more on the 6165 under the curve, same goes for your torque. Also I would think a billet 6262 will spool faster then the 6165. Old tech in the 6165 and a bigger wheel.
Sound Performance in Chicago ran a pair of 6262 on their drag 350z. They did see gains when they went up to the 6265. I can not remember the exact details off hand though.
ScorpionT, when I spoke to inline they told me the same thing. They said they wont go smaller then a 65 wheel. They claimed anything smaller would start to drop off towards redline.
Spoolin what do you not like about having a surge tank. Just another safety factor. Also I would imagine that it has more capability then the full blown set up.
Seth you are only considering where you hit full boost. What about the power difference under the curve. You were making 50-80whp more on the 6165 under the curve, same goes for your torque. Also I would think a billet 6262 will spool faster then the 6165. Old tech in the 6165 and a bigger wheel.
10-12-2009, 08:47 PM
#15
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I was only asked when it made full boost. I was not make more hp and tq with the 6165 under the curve. I making much more now and seeing it quicker.
Chad, let me know once you get the turbo. Are you going to put it in right away, or when I come out there? Also, we should prob order the injectors together so we can get a better price with Jens.
Chad, let me know once you get the turbo. Are you going to put it in right away, or when I come out there? Also, we should prob order the injectors together so we can get a better price with Jens.
10-12-2009, 11:35 PM
#16
Thread Starter
I don't like the idea of having to externally mount the surge tank, that's why I don't like it. Plus I don't understand it. Lol
Seth, I pulled the head today for the build and its going to the machine shop tomorrow. Ill let you know when I am able to get the injectors as soon as I find something out about my insurance claim. Hopefully ill be able to get the turbo, fuel system and injectors before I put the head back on in a couple weeks but I don't know yet.
Seth, I pulled the head today for the build and its going to the machine shop tomorrow. Ill let you know when I am able to get the injectors as soon as I find something out about my insurance claim. Hopefully ill be able to get the turbo, fuel system and injectors before I put the head back on in a couple weeks but I don't know yet.
10-13-2009, 02:26 AM
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Yeah I kind of worded that weird, my bad Seth. I was just trying to point out that even though full boost was only a few hundred a part, there was a big difference in power before that.
Spoolin yeah not exactly sure either. I would assume it is like an oil surge tank in an oil system. I view it as a spare fuel tank. The surge tank would be full of fuel the whole time. In event of any drop in pressure, it would use the fuel in the surge tank. Mainly protecting you from fuel starvation caused from high G loads. This sounds good for me especially since I want to track the car.
Spoolin yeah not exactly sure either. I would assume it is like an oil surge tank in an oil system. I view it as a spare fuel tank. The surge tank would be full of fuel the whole time. In event of any drop in pressure, it would use the fuel in the surge tank. Mainly protecting you from fuel starvation caused from high G loads. This sounds good for me especially since I want to track the car.
10-13-2009, 06:12 AM
#18
Thread Starter
That males sense.
10-13-2009, 09:51 AM
#19
Originally Posted by Revenge,Oct 12 2009, 10:40 AM
I have the 6165s bb and its at full spool 20psi at I think around 5600-5800 and it was over 90 outside. It was at 10psi around 4400. When Seth compared them to the 5965b it actually spooled better. The 6265 is a billet where the 6165 is just the standard turbo. I would think they would all be pretty close IMO. The billet should make more power at higher rpms. I am going to retune later this week Ihope so I should have more data.
During the test were you compairing journal bearings to ball bearings or one to one?