camshafts

[ross261983]

what are the best possible camshafts to get for 172 ph 2???

 

[Gray]

open question...

what are you wanting to achieve?

 

[ross261983]

more power

 

[Gray]

LOL!

what spec engine are you building?

 

[mini-valver]

Road car? Standard pistons and valvetrain?

 

[ross261983]

172 with throttle bodies

 

[K-Tec Racing]

CAT 421 cams work well. 215bhp ITB's 421's

work well, linear power delivery.

Andy

 

[Fred@BTM]

i find them a bit too peaky ye olde 421's

 

[sideways danny]

i find them a bit too peaky ye olde 421's

f**king LOLOLOLOLOL they're far from peaky!! they give masses more mid range than 428s

 

[Fred@BTM]

this was on a car with stock (ported) inlet, it had NOTHING until 5.5Krpm, they might of been 423's i forget (BB's old demo car)

 

[sideways danny]

probably a dogshit map. IIRC they also retarded the exhaust cam a lot to make it idle on the stock ECU

 

[K-Tec Racing]

this was on a car with stock (ported) inlet, it had NOTHING until 5.5Krpm, they might of been 423's i forget (BB's old demo car)

421 cams, ITB's

Nice spread of torque.

 

[Fred@BTM]

pretty sure it had 423's thinking about it, was on stock timing though this one, idled at 1200ish IIRC, but was naff below 5.5krpm, just nothing, nothing, nothing, nothing, goes mad, limiter, nothing nothing nothing etc etc

i'll have a search through and see what cams it had

 

[K-Tec Racing]

that sounds more like 423's which are way too wild for a stock engine

 

[Fred@BTM]

you mapped benP's engine?

 

[K-Tec Racing]

that was his old engine, not the new one........ we power ran it as it was mapped after we fitted bodies about 2 years ago with its previous owner.

 

[sideways danny]

nothing, nothing, nothing, nothing, goes mad, limiter, nothing nothing nothing etc etc

characteristic of a map designed to make you think a car is fast. make it flat as f**k, then bring in the power hard

 

[Fred@BTM]

what when it was still Stoodies?

no idea on the map danny, bottom end was rogered anyway!!!

 

[sideways danny]

what when it was still Stoodies?

no, philty had the bodies fitted. Ben brought it donw for a health check and a power run, and to have the pops and bangs removed

 

[Fred@BTM]

ah yeah i remember, philty bought it off stoddie, then ben had it then rebuilt it

 

[K-Tec Racing]

yea, then didnt like it and broke it and sold it

 

[Fred@BTM]

(again!)

 

[sideways danny]

not that he's easily distracted or anything

 

[K-Tec Racing]

std 172 with itbs, vs itbs and 421's

 

[K-Tec Racing]

btw its not turbod... footer on graph hasnt been changed.

 

[Fred@BTM]

or the date!

 

[sideways danny]

or the date!

that's today's date the comparison graph was JUST done

 

[Da]

So are 428's a good all round compromise for basically a stock engine with a remap to suit?

 

[Tucker]

that's today's date the comparison graph was JUST done

are you mapping?

 

[sideways danny]

are you mapping?

no. I meant the comparison graph was just created from 2 old power graphs

 

[K-Tec Racing]

428's are currently the only option in that range to run on stock managment

421's or above wont idle

 

[Da]

428's are currently the only option in that range to run on stock managment

421's or above wont idle

Thanks

 

[Brian172]

I was thinking of getting 428's fitted and mapped and then at some stage getting throttle bodies.
Would it be best to just wait and get 421's at the same time as the TB kit?
Is there that much difference between 428's and 421's with throttle bodies?

 

[K-Tec Racing]

Yes

 

[K-Tec Racing]

about 10 bhp

Brian

I would always start with the management as then you have an open book as to which direction to go

So Yes personally I would wait

Andy

 

[Andyman]

I was thinking of getting 428's fitted and mapped and then at some stage getting throttle bodies.
Would it be best to just wait and get 421's at the same time as the TB kit?
Is there that much difference between 428's and 421's with throttle bodies?

Dont bother with cams and TB's in combo.

For the total cash of these you could just about have a supercharger conversion kicking out 250 bhp with the potential for silly power

 

[marinemackay2003]

^^how much would it roughly cost for ITB's if i already had an omex 600 and 421s fitted ect as like the lok of the graphs i have seen noise aint bad either

feel free to pm please Mr K-Tec (Andy)

 

[Brian172]

about 10 bhp

Brian

I would always start with the management as then you have an open book as to which direction to go

So Yes personally I would wait

Andy

Management as in the ECU?

 

[Brian172]

Dont bother with cams and TB's in combo.

For the total cash of these you could just about have a supercharger conversion kicking out 250 bhp with the potential for silly power

I have thought of the idea of a super charger kit.
Im not after huge power though, but it is something im looking at.

 

[K-Tec Racing]

Brian

Yes..

SC power isnt HUGE! but it is very fast.... but very tractable..

As Andy says cams and itbs are close to SC low boost cost... but they are different in delivery..