Whats My Standard Bhp?

[ricomr2]

My car was first reg as new in may 1991 and has the 3s ge engine.

I thought it was 158bhp but was just reading the pinned info about

the difference in revisions and it says 168bhp for the rev 1.

Is this right??

Revision's

[JappyBeast]

Yeah and whats mine too?.. I dont even know what engine I have!

Mines an import rev 1 n/a.

[Dame]

TBH I would trust the info under the revisions link. Bibbs will have given these the once over, so you can be pretty certain the information is correct.

[ricomr2]

Yeah and whats mine too?.. I dont even know what engine I have!

Mines an import rev 1 n/a.

Should be same engine as mine but check your reg doc for the engine no.

It should start 3s if its the 3s ge.

[ricomr2]

TBH I would trust the info under the revisions link. Bibbs will have given these the once over, so you can be pretty certain the information is correct.

I didnt doubt that the info would be wrong, was just a wee surprise!!

I thought it felt too quick for 158bhp!

Cheers dame.

[Jimlad]

Yeah and whats mine too?.. I dont even know what engine I have!

Mines an import rev 1 n/a.

3sge

[Dame]

I thought it felt too quick for 158bhp!

To be fair, it isn't all about bhp, torque is more important, the more torque you have the faster.more powerful the car will feel. Your engine should be producing around 150 lb of torque which is not a small amount!

[Bibbs]

the earlier ones were different due to emission regs and different fueling maps .. they all have the same torque curve, just moved about on the rev range (and the tame torque at higher rpms = bigger BHP)

[Dame]

Which basically means that the earlier ones should have better initial acceleration because the torque sits lower down in the rev range. This has the knock-on effect as you say of producing a reduced BHP.

Ok to clarify, it's probably more accurate to say that the measurement of a car's performance is about both Torque, and BHP, but most importantly, it is about the shape of the torque curve and where it sits on the rev range. Therefore, if a car develops more torque lower down in the rev range, it will (depending on its weight of course) accelerate from a standstill quicker. However, the BHP (which relies on the torque curve sitting further up the rev range) will be less. This is why you see big V8 engines (say on a Range Rover) that are some 3.5litres in size, but develop only 170bhp. The real power from these engines is seen in the amount of torque produced, which is largly dependent on engine size (though forced induction such as turbo charging produces large torque increases too).

[ricomr2]

Will removing the cat or gutting it make a big differnce to the car?

[Dame]

If it is turbocharged then yes, not a huge difference, but certainly noticable. Even if your car is a N/A you will see some sort of difference. The power gains won't be that great, but the car should feel more responsive, since jap cats are quite restrictive.

[ricomr2]

Thats what i thought, i might do that today if ive got time.

Is it just a case of taking the cat off and pulling the insides out of it?

[DeusMR2]

yep more or less..but apparently its a ****** of a job to do!:

http://www.imoc.co.uk/technical/howto/catgut.htm

[ricomr2]

yep more or less..but apparently its a ****** of a job to do!:

Cheers for the info mate, seems pretty straight forward.(famous last words!)

I'll get the new bits and bobs and tackle it over the w/end.

[JappyBeast]

Let us know how it goes coz I want mine doing.

[Jimlad]

Let us know how it goes coz I want mine doing.

I thought it was already de-catted mate ?

[JappyBeast]

I thought that till the CAT shield started to fall off!

Reason I thought it was de-catted was that my MOT dude tested emissions and on the print out it said 'without cat'.

[Jimlad]

aaah... I see.