g37 340+ whp
I'll have to go and get my printout to verify (its been awhile since the dyno), but I'm at 325whp from what I remember. I'm rocking Gen 3 intakes, headers, HFC, FI oval Catback, and Uprev tune. I was @ ~310whp with just parts and no tune. I can scan the sheet if you want to see it.
Maybe this is more of a question for GTM, but has anyone seen a fully built all-motor VQ37VHR project? It would be plenty expensive I'm sure, but I'm willing to bet you could hit those target whp numbers with a built bottom-end, high compression, headwork/valvejob, re-worked intake manifold (ITB's?), cams/valvetrain mods, headers, and a solid tune. The response on that setup would be very nasty, but in the end you could've exceeded the whp easily with forced induction and less cash.
IMO the onyl thing that matters is your 0-100 times...
or the real one..is the butt dyno...its all about how it feels...who gives a sh*t about some numbers that everyone's comparing..
its true some dynos are really high..and some are low. soo hard to compare.
just my .02
or the real one..is the butt dyno...its all about how it feels...who gives a sh*t about some numbers that everyone's comparing..
its true some dynos are really high..and some are low. soo hard to compare.
just my .02
I believe the hp number u are searching for are reachable without alot of money. I have stillen stg 3, berk hfc, fi catback version1, and uprev tune. My car completely stock dyno'd 266whp, with intakes and hfc 294whp, added catback 304whp, then tune 315whp and 268wtq.
Mods that i think could get you close to your goal:
Stillen stage 3 intakes- proven 14whp
FI catback with updated X-pipe- been said to add an additional 6whp over version 1
Motordyne manifold- will not improve peak hp, but will increase midrange hp and over all TQ, remember hp under curve is key
UPD- u may see 5whp + 5wtq
Flywheel- May be good for 4-6whp, 8-10wtq depending on brand and weight of the flywheel v.s. stock weight
light weight wheels- believe it or not these will make a difference on both the dyno, and street especially with the lack of WTQ these cars make. Every 10lbs you take off your wheel weight is equal to taking 100lbs out of your car.
FI longtube headers- 18-20whp
retune- I gained 11 whp off of my tune and added 400rpm which unfortunatley isnt tuned yet, so its possible gains could be higher
The upside of this car is that it will make decent hp N/A, but nissan UIM, LIM and cam design on the Z/G models unfortunately lacks torque, my maxima actually make 30lbs more WTQ than my G37. not to mention that G37's are a bit on the heavy side (mine was 3630lbs) so it makes it hard to be competitive when running a car with less hp and less weight.
On the bright side of things, with those mods on street tires and a decent driver, that SHOULD be a High-mid 12's car which most people would never expect!
Hope that helps
Mods that i think could get you close to your goal:
Stillen stage 3 intakes- proven 14whp
FI catback with updated X-pipe- been said to add an additional 6whp over version 1
Motordyne manifold- will not improve peak hp, but will increase midrange hp and over all TQ, remember hp under curve is key
UPD- u may see 5whp + 5wtq
Flywheel- May be good for 4-6whp, 8-10wtq depending on brand and weight of the flywheel v.s. stock weight
light weight wheels- believe it or not these will make a difference on both the dyno, and street especially with the lack of WTQ these cars make. Every 10lbs you take off your wheel weight is equal to taking 100lbs out of your car.
FI longtube headers- 18-20whp
retune- I gained 11 whp off of my tune and added 400rpm which unfortunatley isnt tuned yet, so its possible gains could be higher
The upside of this car is that it will make decent hp N/A, but nissan UIM, LIM and cam design on the Z/G models unfortunately lacks torque, my maxima actually make 30lbs more WTQ than my G37. not to mention that G37's are a bit on the heavy side (mine was 3630lbs) so it makes it hard to be competitive when running a car with less hp and less weight.
On the bright side of things, with those mods on street tires and a decent driver, that SHOULD be a High-mid 12's car which most people would never expect!

Hope that helps
I disagree with your numbers. Each additional component HP numbers are when the item is added to a stock configuration. It has been discussed many times on here how your first breathing mod is the most substantial. So the difference between the two exhausts, and the Gen 3 intake are going to be negligible.
I disagree with your numbers. Each additional component HP numbers are when the item is added to a stock configuration. It has been discussed many times on here how your first breathing mod is the most substantial. So the difference between the two exhausts, and the Gen 3 intake are going to be negligible.
Stillen gen 3 , some type of shortie style headers with testpipe or fi longtube headers, exhaust, replace ac lines with silicone and radiator hoses. Upgrade stock radiator to csf + oil cooler + tranny cooler+ uncertain about motordyne m370 18-19" light weight wheels, striping inside of trunk. And uprev tune would that get me to 330whp? Or damn close ?already have a few of the listed mods.
Not going to happen Brother. Sorry, but without forced induction your going to be stuck in the 305-315HP range if done properly. If you have the motor bored and stroked you can achieve higher numbers, but as stated above for the kind of monies that it will take to get higher HP you might as well get a GTM TT kit put in with a nice tune. Then you'll get as much HP as you desire.
Are you a 6mt ? Or 7at ? I am conaidering pulley but after reading a few threads it seems to do more harm then go in the long run. How do you feel about that certain mod ? I currently have 42k kms in my motor so thats rough 25-30k miles.
Not going to happen Brother. Sorry, but without forced induction your going to be stuck in the 305-315HP range if done properly. If you have the motor bored and stroked you can achieve higher numbers, but as stated above for the kind of monies that it will take to get higher HP you might as well get a GTM TT kit put in with a nice tune. Then you'll get as much HP as you desire.


