question on m20 power output

[Dandandk]

Hi guys, i ve recently added a few light mods to my car and unfortunately i dont have access to a dyno to check the correct hp the engine is pulling. assuming my car has a healthy and well maintained engine, would someone be able to confirm if my expectation of 185-195hp sounds reasonable?

mods:
-mark d chip for 93octane ant 17lbs injectors
-17lbs injectors
-remus exhaust

thks

[TheTacoMan]

No way close to 185. I would say between 145whp and 155whp.

[hooken m]

No way close to 185. I would say between 145whp and 155whp.

i think he meant crank HP. i hope so atleast

[jlevie]

No way close to 185. I would say between 145whp and 155whp.

I'd say that might be a bit low. If the engine, and especially the head, is in good condition the chip & exhaust might let the engine make 155-160rwhp. A fresh, built engine (using stock components) with a free flow exhaust and some dyno tuning can make in the low 160s. Toss in a Mark D 93 octane chip or fully dyno tune with a Megasquirt and you are talking 170's. By free flow exhaust I'm talking about cutting the down pipes ahead of the catalytic converter, feeding them into a 2-into-1 collector, and running a 1.75-2" pipe to a glass pack. It will be loud, really too loud for the street, but it flows really well.

Edit...

I should have added that larger injectors are going to do nothing unless you do something to significantly change mass flow through the engine. Like forced induction.

[digger]

my guess would be 150whp. a bone stock fresh rebuild usually is better than a well used one with minor bolt ons. There aren't many peak to peak gains to be had with a stock m20 using an off the shelf chip, a custom tune is much much better and 8-10bhp is a real possibility. you gain more in the midrange than the peak to peak

[Dandandk]

i think he meant crank HP. i hope so atleast

hey guys, sorry for confusion. i meant crank of course, although it wouldnt be bad if it was wheels hp ;)

[Dandandk]

my guess would be 150whp. a bone stock fresh rebuild usually is better than a well used one with minor bolt ons. There aren't many peak to peak gains to be had with a stock m20 using an off the shelf chip, a custom tune is much much better and 8-10bhp is a real possibility. you gain more in the midrange than the peak to peak

I'd say that might be a bit low. If the engine, and especially the head, is in good condition the chip & exhaust might let the engine make 155-160rwhp. A fresh, built engine (using stock components) with a free flow exhaust and some dyno tuning can make in the low 160s. Toss in a Mark D 93 octane chip or fully dyno tune with a Megasquirt and you are talking 170's. By free flow exhaust I'm talking about cutting the down pipes ahead of the catalytic converter, feeding them into a 2-into-1 collector, and running a 1.75-2" pipe to a glass pack. It will be loud, really too loud for the street, but it flows really well.

Edit...

I should have added that larger injectors are going to do nothing unless you do something to significantly change mass flow through the engine. Like forced induction.

hi guys, thks for the insights; i suppose i havent got a definite answer, but a pretty good idea for sure. looks like 150-155 whp is a reasonable assumption, so around 175-180 at the crank. a bit less than i hoped, but still enough to make me smile...for now.... ;D