True or false

[H22JET]

Ok so I bought a 1992 Prelude with H22A Import. Factory is around 147kw roughly 200HP
Previous owner said its producing 172kw with such modifications as

*4-2-1 Extractors (EBAY)
*4-1/2inch XFORCE Cannon
*Aftermarket Fuel Pump
*K&N High Flow Pod Filter - NEW
*New Aliminium Radiator
*10.2 Vision Spark Leads
*Dyno Tuned at DR.DRIFT in Melbourne
*APEXI Vtec Controller (4800RPM kick in)

I really want to know roughly would this be true? or how much power will I REALLY be producing?

[grifty]

it would be hard to say but i doubt it is making that much power, would be best to get a couple of dyno runs happening.

[EKVTIR-T]

At the flywheel,seems reasonable.

I would throw the vtec controller in the bin though

[drsilliez]

hey u should join preludeaustralia.com. we are a nice bunch over there. :D

seems unlikely to make that sorta power without FI. dyno ur car to see what it is really making :D

welcome!

[H22JET]

WHY throw it in the bin the vtec controller?
and how much does it cost on average for a dyno run

[Wru]

I would throw the vtec controller in the bin though

Pretty much this.
I recently took my car into my mates dyno and did some runs just playing around with the vtec controller, no gains were made at all, it didn't make any difference in the powerband either (Well no noticable difference).

A dyno run will cost 70-120, they'll usually give you like 3 runs on it.

[curtis265]

Ok so I bought a 1992 Prelude with H22A Import. Factory is around 147kw roughly 200HP
Previous owner said its producing 172kw with such modifications as

*4-2-1 Extractors (EBAY)
*4-1/2inch XFORCE Cannon
*Aftermarket Fuel Pump
*K&N High Flow Pod Filter - NEW
*New Aliminium Radiator
*10.2 Vision Spark Leads
*Dyno Tuned at DR.DRIFT in Melbourne
*APEXI Vtec Controller (4800RPM kick in)

I really want to know roughly would this be true? or how much power will I REALLY be producing?

very unlikely, more like 155 at the fly, probably 110 atw

and fk that vtak controller off it's rubbish.

[ThePacman]

147kw is around 110 fwkw.
If it's pulling 172 fwkw, it'd be an absolute weapon. Unlikely.

Go to a dyno comp, get a graph for about $60.

As for the V tec controller, a tunable ECU would do you much more good. Whilst also giving you the ability to change your Vtec crossover.

The only way to know where to set your Vtec crossover, its by doing dyno graphs on both high and low cams and seeing where the two graphs crossover...

[curtis265]

i thought 147 was around 100 kw atw?

[GSi_PSi]

if your lucky you might get 125kw atw with those mods

[NeedVtec]

if your lucky you might get 125kw atw with those mods

good information Mr. 147kw atw.

[curtis265]

if your lucky you might get 125kw atw with those mods

no way mun

[ThePacman]

DUH......!
Just noticed that it says it was dyno tuned at "insert name here".

Do I'm to assume it had been tuned. And has a tunable ECU.

I'd just be s little dubious dude. Ask for a graph...

Nobody evergoes on a dyno without getting a graph, and nobody ever throws out a graph...!

[H22JET]

no guys previous owner said it has 172kw at the engine and around 125kw at the wheels with all the mods cause he has had it dyno tuned and is the crossover where u can make your vtec kick in twice like a 2 stage? i got a mate who has an integra vtir and it kicks in at 4.500rpm and then again at 6000rpm

[curtis265]

you only have 2 sets of cam lobes, not 3, i.e. u can't have 2 vtecs

[H22JET]

what does it mean by crossover? could u explain? casue im thinking of having a aftermarket ecu in few months and get everything tuned so i just dont want to waste my money or get stuff that arent worth
thanks guyss :)

[curtis265]

http://www.youtube.com/watch?v=AcT_ZyY3F0k

[GSi_PSi]

the vtir has a butterly valve in the manifold which allows for one to open at a lower rev and the second to open at a high rev

this provides good down low torque while maintaining fuel effiecieny

the more you know

[curtis265]

the vtir has a butterly valve in the manifold which allows for one to open at a lower rev and the second to open at a high rev

this provides good down low torque while maintaining fuel effiecieny

the more you know

ohhh true

and one in the resontaor too, although they are vacuum controlled and not really tunable

you could call it a variable length intake if you want..

[Jccck]

DUH......!
Just noticed that it says it was dyno tuned at "insert name here".

Do I'm to assume it had been tuned. And has a tunable ECU.

I'd just be s little dubious dude. Ask for a graph...

Nobody evergoes on a dyno without getting a graph, and nobody ever throws out a graph...!

Maybe the dyno result was embarassing so he canned it?

And to what extent the 'Dyno Tune' was to is anyones guess.
Could've just chipped the Prelude ECU and changed the timing a little.. Who knows.
Best bet is to rip the carpet back and have a squiz!

[H22JET]

yeah trueee well he showed me the paper that was dyno tuned at DR.DRIFT and it said 171.4kw at the engine and around 125kw at the front wheels haha but still i dont care casue the car feels good fast and speed climbs fast doesnt take that long to reach 100kph fricken quick i must say and lots and lots of torque evan me and my mates feel it
FUNNNN as

[H22JET]

kept up to a V8 which im happy :D my aim is to prove tat 4 cylinder cars can still outrun bigger engine dicks :p

[stndrd]

Nothing against said tuner, but I have seen that his dyno can be a bit happy at times. I would be giving Trent @ Chequered Tuning (http://www.chequeredtuning.com/new/) a call. He has a Dynapack Hub dyno and it is always on the money.

[H22JET]

alright no worries thanks alot

[Jccck]

You can't accurately measure power at the flywheel/crank without putting the Engine on a Dyno can you?
Otherwise it's just an estimate of % Drivetrain loss calculated onto whatever you've got at the wheels.. No?

[curtis265]

yeah that's correct.