low horsepower

[ashley sw]

while i was at the japshow finale i had my car dyno'ed and the result arnt that great here is a pic of the graph , can someone explain the graph and advice on what could cause a low hp reading since having it dyno'ed i have done a compression test and these are the figures in psi
1 is 150
2 is 145
3 is 140
4 is 145

its got a frankspeed exhaust manifold and its got a sportex back box with a cone filter on the throttle body
its done 93k
ash

added the graph

 

[Baz]

Torques pretty good is it not?

 

[Alexx117]

thats not bad consering its the power at the wheels too which is obviously gunna be less than at the flywheel which is 54hp for a 1.0 aint it?

 

[MrMigs08]

HP and torque figures look great dude, dont worry about it, while micra look quite low in number, their lovely low weight allows them to apserlutely fly.

 

[martinb]

Follow ebbdudes blog on how to improve a few more things matey, otherwise it's normal, have you still got both cats in?

 

[whipit]

16 valve engines appreciate a decent induction system, a cone filter on top would suit a 8v. 1.6 almera air box have shown the best results. also 1.3 cams make a significant difference.

 

[Low Rider]

I'm surprised to see that no-one seems to have picked up on the fact that the peak power is at around 4300rpm.......

 

[ashley sw]

Follow ebbdudes blog on how to improve a few more things matey, otherwise it's normal, have you still got both cats in?

cheers, ive still got both of the cats in, would i be better off by getting rid of one of them?

ash

 

[ashley sw]

16 valve engines appreciate a decent induction system, a cone filter on top would suit a 8v. 1.6 almera air box have shown the best results. also 1.3 cams make a significant difference.

thanks, i will be relocating the filter soon aswell as using some 1.3 cams that i have got

ash

 

[ashley sw]

what revs should the peak power be at? that seemed low to me aswell

ash

 

[ashley sw]

Torques pretty good is it not?

yeah the torques increased over stock

 

[Guy]

Remember, power sounds good but it's torque that pulls you along .

 

[ashley sw]

i have redone the compression test with a new tester and got the following in psi

1 is 190
2 is 190
3 is 185
4 is 190

ash

 

[frank]

they look bang-on ash (Y) no problems there eh

 

[ashley sw]

cheers frank, at least i now know that my engine is good in terms of no leaks etc im hoping to get my 1.3 cams fitted by the end of the month and a few other bits and bobs that i will keep as a surprise