350HP NA 350Z:

https://my350z.com/forum/engine-and-drivetrain/166639-latest-crawford-dynos.html

Really not that difficult...

Add a 100shot and you will be as fast as the FI guys

 

No, I am factoring in the labor with those prices and that is with major engine builders. There are a lot of little "local" shops where you can get the same type of balancing/blueprinting etc done for a lot less, so the numbers I am throwing out are at the top end of the cost, having someone like Rebello, Sunbelt or AJR build the motor. I just had a local machine shop, that does most of the road race motors for racers in this area, do my heads and it cost me $1200. The motor is back together and already has one race weekend on it, Revs to 7800rpm reliably.

Sure you can slap on a turbo kit and make big HP real easy, but IMHO anybody can do that. How many Z's are out there that make big HP N/A? Guys like Ritchie (in Australia) are who impress me, not someone who slaps on a X-W-Z turbo kit.

 

you can reach 350-400hp if you have a viper get behind your car and push it

 

350bhp wouldn't be that hard... if people are pulling 290WHP isn't BHP higher than WHP? since the Z is 300bhp stock and 230(ish) WHP its very capable.

 

yup... my engine is around 347BHP now (with normal street petrol)... so 350HP isn't that hard from there... you will need to have a total rework on the engine to reach that goal though!

and I spent like 22K USD with the motec and the labour...

cheers,

richie

 

Now I’m confused some people say I can some people say I can't & some people are here just to make jokes

 

MEI,

you definitely can do N/A Power up to 350+ BHP! If you go 3.5+L, you should be able to get more than what I have got... I only increase a few c.c. in capacity, the main HP gains are from my nismo S1 cams, the higher compression pistons (only about 13rwHP) and the engine management unit... So if you have larger displacement in your engine, I cannot see why you cannot break 350+BHP!

Others are saying that it is not worth the money to go down the N/A route on our engine because you can simply get heaps more power from going FI routes with a lot less money. They are just giving you their suggestions, but if you are really into the N/A engine, go for it and make sure that you have a good tuner near by to back you up!

But Honestly, if you want me to do the whole car all over again, I MIGHT consider going FI route though... Just a personal opinion!

cheers,

richie

 

thats because you say you want bhp but talk like you meant whp. you posted you only want people experianced that know what they are talking about. but it looks like you arent even sure what you meant.

quick summary.... if you want 350bhp (power at the crank) its very easy.....
if you want 350whp it will never happen without 20k+++... just like i told you on the first page

 

i'm talking about the first one power at the crank if it is easy so tell me how and what is the right things to do?

 

Mei,

As I mentioned earlier, I have got 347 BHP (roughly) with the following mods into performance:

- Engine Internals:
o Nizpro Spec 11.5:1 Forged Pistons with Moly coated piston skirts
o Nissan 0.2mm overbore piston rings
o Carrillo A-bean (I-bean) connecting rods
o Carrillo connecting rod bolts
o Balanced short block
o Over bore and hone 6 cylinders
o Nizpro modified bearings
o Nizpro modified oil routes
o Nizpro modified cylinder heads
o Nizpro modified combustion chambers
o Nizpro modified injectors
o Nismo Spec 1 Intake Camshaft (276 degree, 11.0mm lift)
o Nismo Spec 1 Exhaust Camshaft (256 degrees, 10.5mm lift)
o Nismo VTC Pulleys (55 degrees)
o Nismo Oil Pump
o Ferrea competition plus light weight intake valves
o Ferrea competition plus light weight exhaust valves
o Ferrea titanium retainers – 6 degrees
o Ferrea dual valve springs
o Ferrea steel valve locks
o Ferrea valve seals
o Ferrea valve seat locators for Ferrea valve guides
o Ferrea copper exhaust valve guides
o Ferrea manganese bronze intake valve guides

- Intakes:
o Nizpro 84mm intake pipe with integrated MAF sensor
o Nizpro spec larger bell mouth (118mm) intake in the stock airbox
o K&N high flow replacement filter
o ’05 350Z lower plenum (with shorter runners and larger intakes)
o Motordyne Engineering 5/16” Plenum Spacer
o US Spec 350z larger intake airbox duct

- Exhaust:
o Fujitsubo SuperEx stainless steel header set
o Nizpro 3” high flow catalyst converters
o Nizpro Spec Y-pipe with larger collectors
o Nismo weldina centre pipe
o Nismo weldina rear muffler

- Drive Train:
o Nismo light weight flywheel
o Fluidampr silicone fluid harmonic damper

- Engine Management System (ECU)
o MoTeC M600 ECU
o MoTeC Cam Control Module
o Nizpro Plug & Play MoTeC wiring loom for 350Z

- Engine cooling:
o Nismo JDM 11 cores front mount oil cooler system with air guides
o Motordyne iso-thermal throttle body coolant controller

And if you go for larger pistons than mine, I am sure you can break 350+BHP easily... but to me, 347 BHP is more than enough, it is already close to 100 HP per litre engine power that I am after...

cheers,

richie

 

MAN how much did you spend

 

Umm do you even read these replies?

 

many mechanics will say rule of thumb is to double the mileage on an FI engine. Sos 40,000 on an FI engine is _roughly_ equal to 80000 on NA engine. This is very general rule of thumb. Some NA engines blow at 50,000, some go 200,000.

 

that's why i don't wanna go FI where the risk is higher

 

all you yanks think the only parts available for the vq is yank manufactured parts (typical), look what they are doing in Japan and you will see that 350hp is achievable.

 

Just call Crawford Z Service in Tenn. I think his handle is VandyZ. They were at Zdayz this last weekend with a N/A Z with 351 HP. It was not all that hard and they had a list of needed mods. Call them and they will get you to 350HP.

 

Here is the engine you want:

http://www.iesracing.co.uk/3ltrV6.htm#threefour

Mike

 

Here's how you'd get it done. Check out these links.

http://www.coatesengine.com/engine_of_the_future.html

http://www.coatesengine.com/csrv.html

 

I've been wondering, how many miles do you have on this setup and how much time to you spend from 7-8krpm?

 

a high hp NA application is JUST as dangerous as a forced induction application.....anyone who tells you otherwise is asinine.