Power limit on charger

[RyanC]

That's cool man so how do the springs fit coz they are close to the cam carriers as it is! Do you have do grind them away abit? I'm guessing all the spring seats have to be moved?

[polo classic]

Seem to fit fine

Haven't found any evidence of grinding


Yes the valve seats have to be moved

[paulg40]

This is an interesting read and one that raises the question I always had when running my old g40. I never touched the bottom end on mine infact it was running standard injectors and ignition etc etc. thi all my mods where based on Getting more air into the engine and that was it. The head work done was genius in my opinion, on the road gave more gains than any charger flowing did (I know it all added up). I think I ended on 175bhp which for not changing the bottom end was great.

I agree with Andy, it's all about how these cars react on the road so a 1/4 mile will always be a good test etc. I think now I'm in the market for a g40 again I'll aim for around what I had years ago but nothing more as that power was always more than enough really.

[metz]

Mine has 65mm pulley on a standard charger, gt inlet standard exhaust with cat PPP map (guessing generic) and paper filter in standard air box with front cut away.  And it surprises me how nippy it is. Had a play with mates cars on way to meets and such and it's quite a bit quicker than a standard corsa vxr, new shape s3 (to 100) and can sit on the boot lid of a mk2 focus RS with flame spitting exhausts. 
I'm guessing with my spec it's gunna be around 130bhp, would love to experience 170bhp on a G lader.. Must be mental.

[z3i]

Awesome!!!

[Andy]

From memory Tris your map is tweaked rather than just a generic one.

[z3i]

Need to get mine mapped properly!! Will make a huge difference!!

[metz]

Ah right cheers andy, power delivery is very smooth. And seeing 14psi rising to 15psi @6k where I change gear.

[RyanC]

I'm glad I answered the question ended up being quite interesting can wait to get it done now sticking with the g40 charger defiantly now so once the respray is done full speed ahead to get it done. I need somthing to put a smile in my face at the weekend after a weeks work ha

[paulg40]

Personally I think anything over 160-170 BHP the money would be better spent on suspension and an LSD as grip becomes a huge issue, fun as hell and gets the giggles but your wallet will not thank you with the price of tyres.

My standard G40 I have at the minute is still good fun because of it's drivability and it will see a Fiesta ST off fairly easily, they also feel so much quicker than many cars of the greater BHP output due to the power delivery and torque.

Great engines :-)

[Jacque]

Ah right cheers andy, power delivery is very smooth. And seeing 14psi rising to 15psi @6k where I change gear.

Are u sure that charger is not ported? because i m getting only 10 psi out of my stock one with 68mm  (with recent rebuild)

[metz]

Not ported, had it in half to change seals

[Jezza-7]

If might be seeing different pressure due to a number of things though, boost leak, manifold mods, throttle body mod etc. I see 12psi with a 65mm but im 1341cc and inlet mods.

[randombadger69]

What material is this?

[Jacque]

If might be seeing different pressure due to a number of things though, boost leak, manifold mods, throttle body mod etc. I see 12psi with a 65mm but im 1341cc and inlet mods.

yeah but i have not done those mods yet :/ a boost leak should be noticable no?  in power as well as exterior on the car?

Always heard that 0.7-0.8bar (10-12PSI) would be the max on stock G40. and porting +0.2bar (3PSI)

if not, maybe my charger is not really in great shape? it had some damage on the displacer but was fixed...