| mike300zxt |
Hey all, just thought I would share this! We're doing our first 350Z Twin Turbo next week, which I'm very excited about! The JWT kit seems very thorough in it's stock form, and is capable of some pretty impressive results with a few engine mods.
If you're interested, all the updates on the project will be posted here over the next couple weeks:
http://www.ztune.ca/projectcars/jwt350ztt.aspx |
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| MixManMash |
| Looks cool. Can't wait to see how the install goes. BTW what is JWT doing for the fuel managment (retuned ECU, bigger injectors, Rising rate fuel pressure regulator, etc.)? |
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| mike300zxt |
quote:
Originally posted by MixManMash
Looks cool. Can't wait to see how the install goes. BTW what is JWT doing for the fuel managment (retuned ECU, bigger injectors, Rising rate fuel pressure regulator, etc.)?
Hey Mahesh, it was great meeting you last week! How was the wedding?
In terms of fuel, the kit is tuned for rising rate fuel pressure, and the ignition is re-tuned using an add-on module. If you were to build the block and go for higher boost, then you would need larger injectors and a full fuel return system as well. At that point, it would be good to dyno-tune the ECU as well (we're investing in the equipment for that shortly).
Mike |
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| MixManMash |
Hey Mike, it was also good to meet you. The wedding was awesome. Pretty crazy time. Good partying too!
Sounds interesting. So that means you would be able to do a custom tune for a Z32 soon? I might have to get my car out to Vancouver once you have all the equipment.
Mahesh. |
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| vorpalz |
quote:
Originally posted by MixManMash
So that means you would be able to do a custom tune for a Z32 soon? I might have to get my car out to Vancouver once you have all the equipment.
2nd... interested! |
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| mike300zxt |
quote:
Originally posted by MixManMash
Sounds interesting. So that means you would be able to do a custom tune for a Z32 soon? I might have to get my car out to Vancouver once you have all the equipment.
Mahesh.
Yes :D |
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| Inzane |
Now look what you've done Mike... next thing you know you're going to have half of our club driving out to see you. :D
You better check with our schedule next summer before you book anything *special* again so we don't conflict, like the trend seemed to be this year.
(Especially if you're bringing Greg & Seb back, eh.) ;)
Jason |
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| mike300zxt |
quote:
Originally posted by Inzane
Now look what you've done Mike... next thing you know you're going to have half of our club driving out to see you. :D
You better check with our schedule next summer before you book anything *special* again so we don't conflict, like the trend seemed to be this year.
(Especially if you're bringing Greg & Seb back, eh.) ;)
Jason
Haha, we don't mind visitors! There will be a bunch of exciting stuff coming over the next 3-4 weeks ;) |
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| Inzane |
quote:
Originally posted by mike300zxt
Haha, we don't mind visitors! There will be a bunch of exciting stuff coming over the next 3-4 weeks ;)
I was talking about next year. If you recall there's a conflict with Albertans in that "next 3-4 week" timeframe, because I think you have something going on the same weekend as the big Cool Cars for Cancer event here. |
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| vorpalz |
quote:
Originally posted by mike300zxt
Haha, we don't mind visitors! There will be a bunch of exciting stuff coming over the next 3-4 weeks ;)
Cool, I might be heading your way in the next month... I'll keep you posted.
Thanks again for sourcing the PS line, it did the job!
Regards, |
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| Bubba |
| I would love to see the results of the Z car with the twins. I would definately love to do twins as well one day. |
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| mike300zxt |
quote:
Originally posted by Bubba
I would love to see the results of the Z car with the twins. I would definately love to do twins as well one day.
Well...after driving it, I can definately say it's a whole new car! Even the heavy convertible is torqy and FAST! Hopefully we'll get some dynos up as well once the new exhaust comes in! |
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| MixManMash |
I like the torque curve if it resembles anything like this:
Should be sweet. Just wonder how well and for how long the VQ35DE internals can take it. |
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| mike300zxt |
quote:
Originally posted by MixManMash
I like the torque curve if it resembles anything like this:
Should be sweet. Just wonder how well and for how long the VQ35DE internals can take it.
It should be, it sure feels like it! The torque comes in early and stays strong. It's a blast to drive now!
Jim Wolf has run over 540RWHP on the stock engine with this kit for over 2 years using C16 gas. The trick is avoiding detonation.
The Z32 engine will withstand a fair amount of detonation because of the forged internals, and the way the pistons are made. On the Z33, the piston rings are close to the top of the pistons, and the pistons are more brittle because of the low-friction design, so it's easier for detonation to damage the ring lands and then melt the piston skirt. The Z32 has a higher tolerance for bad tuning, but the Z33 is strong as long as tuned properly.
The JWT kit is built to run rich and pull enough timing to keep the engine safe from detonation. |
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| aarrgghh |
| Hey Mike, what are you using for engine management? The standard JWT install seems only to have a timing module, can you adjust the AF at all, or is it a ECU reflash? |
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| mike300zxt |
quote:
Originally posted by aarrgghh
Hey Mike, what are you using for engine management? The standard JWT install seems only to have a timing module, can you adjust the AF at all, or is it a ECU reflash?
Hey Jeff, the car is setup like this:
Fuel: Fuel is supplied using an upgraded Walbro pump. A rising rate FPR is used to increase fuel pressure with boost 3.5:1. This causes the car to run at a safe A/F (arround 11:1).
Ignition: Ignition retard is added via an add-on module that retards timing when the MAF goes over 3.3V. The ignition timing is tuned to a safe enough margin that detonation shouldn't occur even if you used the stock fuel system (or if the FPR failed for any reason and the car went to 13.5:1).
There isn't really a need to adjust A/F as it is set at a safe level for those turbos. If you wanted to tune the car, you would plug a laptop into the timing module, and add more timing back in if you wanted to run 94 octane gas instead of 91.
With tuning, A/F is tuned for safety, and timing is tuned for power. You don't get much power by tuning A/F, tuning it rich just helps keep temps down, which allows you to squeeze a bit more power out by upping the timing. |
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| aarrgghh |
| Ok, was just curious how the kit would react to tuning at sea level and then moving to Edmonton elevation. Can't wait to see the dyno results!! :) Did you base line the car, and which exhaust did the customer go with? |
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