Need High-End Torque

[KnightHawk]

Ok, so i've got my new QTP cutouts on Megan Mid's, my 20" Roderick Wheels but now i need to do something to give it more high-end torque.
Any suggestions?
- KH

[EniGmA1987]

a 1/2" plenum spacer will give you more high end power, although you lose a bit in the low and mid to get this. Or you could add a big a** turbo that spools up at 5000 rpm to give you your big high-end boost, but that costs a lot of money

[06M4.5]

you should start by getting a custom y-pipe

[szh]

Or you could add a big a** turbo that spools up at 5000 rpm to give you your big high-end boost, but that costs a lot of money

Would be awesome nice indeed!

But, there are none available for the M45 with the V-8 engine that the OP has. Unfortunately. Would need a completely custom design, and your "lots of money" would have to go up a lot more.

Z

[svard75]

Asking for more high end torque can be achieved my increasing air flow and fuel. The best bang for buck is a custom tune. The guy that tuned my car can tune just about any Nissan out there. He flashes the ecu to unlock it then drives with me and analyzes the engine at various points and during various hard pulls, adjusts the ignition timing then the cam timing and then both together. Hes flashed his Titan and many vq35's. onpointdyno.com his name is Sasha. I didn't think there was a plenum spacer for the VH45. Prior to a flash I would do two things. Get a custom made cold air intake http://www.prmracing.com/ this guy can build you a really nice cold air intake with the filter sitting in an accessible location. Then a custom exhaust from a reputable shop that mandrel bends and welds pipes.

Damn I wish I had your engine

[KnightHawk]

Awesome responses guys! It's so damn hard to find any custom stuff for M's. They're all over for the G's and Nissans. We gotta stick together. LOL! I will get pricing on all of the things mentioned. I also wanted your opinion on the absolute BEST BODY KIT for the 45 (even if it's Fuga).

[wizard8873]

For the M45, ping seymore4. He can get you set with a tune. best route is intake and at least a mid-pipe and axle-back exhaust. You can go with custom Y-pipe or X-pipe for even better performance. Best to get a tune afterwards to make use of those changes. hi-flow cats can help but you'll have issues with emissions then. headers and anything else would be custom at that point.

[seymore4]

The only thing at this point that won't be custom for you are an intake/ high flow filter and tune. You can do a transgo shift kit which will make it shift faster & more aggressive, but it won't actually increase the torque.

Only other go fast mod I can really recommend would be a custom Y pipe and secondary cat delete... Unless you want to spend $2000+ on custom headers

[M4point5]

I was quoted $400 PER runner for custom headers. If it was $2000, I would do it. $3200 I will pass.

Intake, exhaust and tune are really your only options...I wish there was more but there isn't - especially for the VK. I will be having manifold and throttle body spacers made - I will be sure to post up results, if any. I have dyno graph of my current tune...after the spacers, I will run on the dyno again and see about a re-tune.

[mexillis]

Where are the pics and sound clips of your ride??? As to your question getting a full exhaust will help followed by a tune. If anyone wants headers ppe engineering would make them for less than 2gs and don't need a group buy or anything. They only need a car at the shop or someone to send in manifolds and cats connected and they could use that for a template.

[mexillis]

You might be able to get your car tuned while utilizing your cut outs depending on where they're at.