Adding power...

[the great ny]

sorry late to this threrad for the replies. for some reason im not getting response alerts.

Originally Posted by NobleTech

yes the most I have run is about 31 psi, as porting porting, I've had customers that have spent well over ten k on head work that could not produce the power level of stock heads, I would not wonder in that relm. although, each time I bolt up a set of manifolds I visualy align the edges of each section with a borescope, I us e a long screw driver or such and push and pry while I slide the scope through the throttle body and lign of the perimeter edges as best to split the diference between the realy bad ones, it is literaly worth 7-20 ft lbs of torque and very little horse power.

ok, so scrap that. i will not be doing any headwork on the built motor. im essentially only looking for 600bhp or so. unfortunately im FWD and not RWD like your guys cars. so that being said. i'll read between the lines and assume 600bhp is doable on the stock heads with no porting and etc?

you know if the heads being best stock would hold true in an NA application or heavy build. or would that only hold true in an FI application?

Originally Posted by NobleTech

this is going to be cool,
the power at boost levels has very little to do with power, I believe it's the pressure ratio of the engine that make the power, anyways, I've experimented with other tuners tunes on Nobles, GTR's and the such and found that there tunes make more power at half throttle than they do at full throttle, what, that's insane, Troy's lost his mond, well, see what happens is the maps at half throttle have a little bit more ign timing, fuel timing and the such. but they aren't controlling the boost linearly throughout throttle range, thus creatiing same boost levels at same RPM's at diferent throttle positions, so boot plus rpm plus ign timing equals that much horse power, now try it at half throttle,rpm plus boost plus a little bit more ign timing equals more power and sick tire spin and giant torque spikes and broken tansmisions and shitty lap times and so on and so forth, so full throttle tuning is for drag racers and show offs, 96.9% of my tuning life has been spent at 1/2 to 3/4 throttle. because most of the drivers I know can't drive a car at full throttle through the apex. that's why we have the fastest noble in the world. or so that's what I say. you can reach me at troy@bigegos.com

i actually do an INSANE amount of part throttle tuning on my car as well. i drive it on the street so like you said i too believe in that venue part throttle tuning is more important than WOT and understand fully

Originally Posted by Hoover

We have yet to have any cracking manifold issues with the stock manifold. We have run 21+psi. on the track without any issues to date.



Our "fuel" issues are only race related. The stock fuel system is sufficient for most use.

o ok, thank you for that. very reassuring on the manifold holding that much boost without incident.

Originally Posted by Hoover

BTW, we don't have any information/data on aftermarket billet plenums for the Noble.......

how much you want for that manifold?

Originally Posted by BeyondloadedSE

The easiest throttle body to modify would be the 4.6L Mustang throttle body which is a 65 mm. Many of the Contour and Cougar guys, including myself have done this on their 3.0L duratecs. It takes a little bit of modification to work. The largest I know that someone has used is an aftermarket 70mm Mustang TB.

i wanna say you mean the 4.0L V6 Mustang TB.....at least for my car its almost identical and they sell some 70mm TB's for those. and im actually waiting on a friend to bring his DD stang to my house so i can get to working on the swap and see whats needed.