fiestaturbo.com

[robbie s]

Went to power engineering yesterday and managed 179bhp and 154lb/ft Missing 21 bhp

[Max M4X WW]

You mean thats what you were hoping for or you have had it RR'd at that before?

Hope you find the problem, so to speak. Bet its ace to drive

[mike_wall15]

As Max says, what do you mean you're missing bhp?
Good power figure there

[Stoned]

Did you get the original figures at the same rolling road?

There is usually a small difference, although not THAT big

[robbie s]

was hoping for 200bhp, the tuner gave me an iffy 170bhp@wheels figure on friday so thought that it would be on target for 200@flywheel but power engineering rollers confirmed it was only 179

[Oranoco]

180bhp from a n/a RS1800 and you're complaining That's a lovely result mate

[robbie s]

180bhp from a n/a RS1800 and you're complaining That's a lovely result mate

2.1 not 1.8

[Oranoco]

Oh

Still it's not exactly a poor result though

Any ideas why it's down on what you were expecting?

[robbie s]

Me being a bit stupid lol am still running the standard 1.8 exhaust manifold and my cams are piper 270's maybe those two factors and the mapping isnt 100% were a big contribution to the 179bhp figure

[Asad]

Definitely get an uprated exhaust. Standard item is very restrictive.

Still a very good figure!

I would suspect you will need to raise compression ratio too if you havent already to try and break 200bhp.

You have PM mate too


Asad

[RS rob]

good result
different exhaust manifold and extreme road cams rather than fast road and you'll be over 200bhp i reckon

[MarkRS2K]

were you at the PE RR day mate?

[robbie s]

Definitely get an uprated exhaust. Standard item is very restrictive.

Still a very good figure!

I would suspect you will need to raise compression ratio too if you havent already to try and break 200bhp.

You have PM mate too


Asad

Currently using a 57mm bore exhaust straight through from OE manifold back, compression ratio is 11.1 (10.1 standard)

I was thinking of changing the cam profile to something like pipers 285 ?

[robbie s]

were you at the PE RR day mate?

yes mate

[MarkRS2K]

think i remember seeing it, well mine didnt make the normal bhp figure either, but was well up on the torque

[robbie s]

Any Idea why? see some peeps on PF saying cooling fans werent up to scratch thus making ACT's a little on the high side

[freak power]

Currently using a 57mm bore exhaust straight through from OE manifold back, compression ratio is 11.1 (10.1 standard)

I was thinking of changing the cam profile to something like pipers 285 ?

Swap the exhaust for a 2.5in, forged high compression pistons and a wilder cams than 285 would be better also upgrading to solid tappets.
Have valve cut out been cut into the std pistons?

[MarkRS2K]

yeah u caught some people on pf.com saying that, ive always gone to powers and all the time my results have been different

My mate reckons they didnt push my car that hard, and only done a quick run, where as others were on their longer?

Still a good day tho, and im still happy with my cars power

[robbie s]

Currently using a 57mm bore exhaust straight through from OE manifold back, compression ratio is 11.1 (10.1 standard)

I was thinking of changing the cam profile to something like pipers 285 ?

Swap the exhaust for a 2.5in, forged high compression pistons and a wilder cams than 285 would be better also upgrading to solid tappets.
Have valve cut out been cut into the std pistons?

Currently using accrolite forged pistons with valve cut outs 86mm bore
Rekon your right about the cams though been looking at specs and I would need something that tops out at about 8000rpm but only downside of that is they dont come on cam till 3500rpm and I would prob need bigger followers and sitting in traffic would be a bit lumpy lol Im tempted to go whole hog, steel bottom end and a bit more head work but it will take me about a year to have it finished

[robbie s]

yeah u caught some people on pf.com saying that, ive always gone to powers and all the time my results have been different

My mate reckons they didnt push my car that hard, and only done a quick run, where as others were on their longer?

Still a good day tho, and im still happy with my cars power

yeah was a good day, fekin freezing though lol

re: PE I think they would change the fan if it wasnt good enough for the job, rekon peeps just wanted to find something to blame there lower power figures on lol

[freak power]

You wont need a steel crank unless you plan to rev it passed 9.5k

Std crank, steel rods, Kent2003 cams with oversize liftters

Cams like that wont idle bad unless it hasn't been mapped right

[Oranoco]

Doubt the rods will need to be changed from standard either. Mate was using standard rods in his 316bhp Zetec Turbo with no issues at all and they checked out just fine when they came out. Been replace for steel items now as he's taken the jump to 400bhp

[robbie s]

You wont need a steel crank unless you plan to rev it passed 9.5k

Std crank, steel rods, Kent2003 cams with oversize liftters

Cams like that wont idle bad unless it hasn't been mapped right

You can rev a standard crank over 9k I didnt know that
will have to look into getting some steel rods also, looks like the engine will be coming apart again

[freak power]

Doubt the rods will need to be changed from standard either. Mate was using standard rods in his 316bhp Zetec Turbo with no issues at all and they checked out just fine when they came out. Been replace for steel items now as he's taken the jump to 400bhp

When it comes to N/A engine its the rev that will kill the rods, i wouldn't rev a zetec past 8.5k with std rods

I had a bet with a mate about my old ZVH and about how much it would rev and what would let go 1st, i had no rev limiter on my old engine and revved it to 8k+ all the time.
And when i said the rods would let go at 9k i was right and at 9100rpm's a rod popped out of the side of the block and when we had a look at the crank it was totaly sound.

[freak power]

Whats the full spec of your engine?

[robbie s]

cylinder head is as follows
Gas flowed
ported/polished
3 angle valve seats
uprated springs
oversized valves
270 cams with hyd followers

Block
Decked 11.1 ratio
accrolite forged pistons with valve cutouts
arp bolts
standard crank and rods
Lightened / flywheel

45mm Jenvey T/Bs
Omex 600
pico 330cc injectors
3 bar FPR
Escos Walbro fuel pump

[freak power]

cylinder head is as follows
Gas flowed
ported/polished
3 angle valve seats
uprated springs
oversized valves
270 cams with hyd followers

Block
Decked 11.1 ratio
accrolite forged pistons with valve cutouts
arp bolts
standard crank and rods
Lightened / flywheel

45mm Jenvey T/Bs
Omex 600
pico 330cc injectors
3 bar FPR
Escos Walbro fuel pump

You didn't put down what exhaust you had?
What you really need is a 4-1 manifold with 1.5/8 primays going into a 2.5in system
High spec cams with oversize solid tappets, different springs and retainers

[robbie s]

when you say 2.5in exhaust is that outside or inside diameter ? . A 57mm Viper Racing System is what I currently have from OE manifold back with no cat. think I will look into Cams, but if the engine needs to come apart Im going to go well over the top rebuilding it, steel everything, silly comp and maybe switch to some 48's ETC

Thanks for all advice

[freak power]

My system is a cut up RS Turbo 2.5 inch system, I'll also find out how long my primarys are on my manifold as that a key to big power on a N/A Zetec, Get rid of the OE manifold thats the enxt step then the cams and if i come to sell my 48's ill let you know as i am building another engine with more than 2.2 very wild cams and twin 50's for the future

[robbie s]

That sounds like one hell of a N/A engine your have in the pipeline
Cheers for your help