Judging by injector size and boost graph I'd say this was on e85. The torque is high because the boost is high at low rpms and e85 allows more aggressive timing.
I don't see air intakes or flex fuel kit on your mod list so I probably get those first then that's about all you can do with stock turbos. flex fuel kit doesn't add hp it just allows you to run an mix of gas / ethanol for convenience. If you still need more power you'll have to do turbo upgrade along with transmission upgrade.
That's a lot of torque for that low rpm on a stock bottom end. This is how rods bend on these cars. I'd recommend having the car looked over by a reputable shop/vendor here. Where are you located?
The initial torque hit is high because the boost is rolled in very early which creates a bit of a trade off in the upper power band for holding power; not to mention that much torque down low can be playing with fire a bit. Also, looking over your mod list, like 1800 said, intakes and a flex fuel kit would be good additions.
It looks like that list is from 42 Autosports so if you're anywhere in the South then you're not too far from us. Let me know if I can help at all.
So since it doesnt have flex fuel on your mod list, you're going to have multiple maps for your different fuels. With your injectors and pumps used its certainly setup for E85.
As Tim stated, ramping it torque that fast at that low of an RPM will bend rods ... not safe. Do a datalog and send it to me when you receive the car and ill look it over for you.
Flex Fuel and Intakes according to that mod list is the first thing I would address along with a re-tune by a reputable shop.
I couldnt find this post for some reason but I did now and I appreciate the feedback.
Since I posted, I put COBB 3" intakes and a viscount flex fuel kit.
19.5lbs 634awhp on virtual dyno. Torque has been adjusted as well to come in smoother.
Does anyone have boost fluctuation issues? Thinking about updgrading waste gate actuators. It isnt bad, just want to turn the boost up some more and not have to worry about fluctuation.
So that's it, the car is maxed out? Next step starts costing big money?
BTW, I had the car shipped from North Carolina, I am in El Paso TX. Taking it to the track tonight to see what it runs.
What do you mean by boost fluctuations, how the psi tapers off? If so I think that's because of the size of stock turbos. Yes next steps costs some serious coin, $4k for turbos and $10k for tranny work plus several grand in labor.
What do you mean by boost fluctuations, how the psi tapers off? If so I think that's because of the size of stock turbos. Yes next steps costs some serious coin, $4k for turbos and $10k for tranny work plus several grand in labor.
I couldnt find this post for some reason but I did now and I appreciate the feedback.
Since I posted, I put COBB 3" intakes and a viscount flex fuel kit.
19.5lbs 634awhp on virtual dyno. Torque has been adjusted as well to come in smoother.
Does anyone have boost fluctuation issues? Thinking about updgrading waste gate actuators. It isnt bad, just want to turn the boost up some more and not have to worry about fluctuation.
So that's it, the car is maxed out? Next step starts costing big money?
BTW, I had the car shipped from North Carolina, I am in El Paso TX. Taking it to the track tonight to see what it runs.
Can you post some logs? I'm curious as my Virtual Dyno is low.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Nissan GT-R Forum
1.7M posts
66.9K members
Since 2004
A forum community dedicated to Nissan GT-R owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!