i want to turb my bonus and want about 250-300bhp what is the best way to do it
cvh
zvh
zetec
i dont want to run mega boost but want good useable power
and to do it as cheaply as posssible
as im tight

 

... 300bhp in a mk4 cheap msl:

well you need to be thinking along the lines of 1.9cvh on cossie management, and you won't be doing it cheap unless you buy a big spec engine secondhand

-> don't know a massive amount about the ins and outs of ZVH's

- and a zetec turbo capable of lasting more than 5 mins isn't going to be a cheap build...

buy something jap and turbo'd

and 300bhp FWD is a bit of a waste IMO

 

Good points from above,

It wont be cheap really mate, best off holding out for a second
hand all steel bottom end that might pop up really.

You will see 250bhp from a 1600cvh pretty easy, just depends
on how little you want to spend lol

Cheers

Matt

 

what i mean is im not after a mega budget build like some out there1
but will spend sensible money on the right parts either new or
secondhand
just wanna know what the best option would be?

 

Well for any more than 260 ish you want to be looking into going to steel rods on any of those engines.

Any of the CVH based engines will need a big valve ported head. The Zetec will just about cope with that without needing too much work but you will need to modify it to suit the manifolds.

If you want a revvy engine with progressive power that pulls to the limiter then start with the 1600 cvh. If you want to break gearboxes and destroy tyres and change gear at 5.5k rpm then go for a Zetec based engine.

 

go 1.8 zvh relativley easy/cheap build and good power and heaps o torque!!!

 

erm surely a zetec turbo running on good manangment, not mfi would rev to more than 6k with say a stg3 t3 or even a (readily available second hand) t34

 

300bhp fwd with the right bits after a while can become boring

 

Agreed. You soon get used to it

 

lol look at u 2 , like what u gonna do when 400 bhp becomes boring ?/

 

Your best bet is to buy a car with already 300+bhp... there are a few on ebay at the minute.

 

From my experience of Zetec engines, the T3 can't keep up with the engine. Power becomes flat after 5k rpm. A T34 would be a better option.

 

is there much head modifications needed to run a zetec turbo? without going crazy power?

 

i'm sure you have to change the valve springs but thats about it

 

A standard Zetec head will be fine if you don't want silly power.

 

what does the sapphy cosworth turbo run out at or is it really advisable to run a t34 at anything 250ish plus with a zetec to get the power delivered well at top end. I was thinking the t3 would spool up quite well or is there bugger all difference in them anyway

 

Depends on the boost level to a degree. When you start to stretch a turbo to it's limit, the engine consumes more air than the turbo can give.

A stage 1 Cossie will still produce decent top end power but on a stage 3, it will start tailing off pretty quickly as you get a sudden surge of power in the midrange then the power drops off as the turbo struggles.

The other thing to think about is the Cossie engine will consume more air than the Zetec engine as it is a better design to start with. The T3 would be better on the Zetec than the YB.

 

Getting the power is not too difficult on a budget, its making it reliable & useable that costs the extra cash! What ever you may think it costs to get the power, double it if you want to make it reliable.

Dan

 

My ingrediants for a cheap 275bhp RS turbo would be the following:
1.6 cvh with basic forged pistons and basic forged rods (not too dear)
std 1.6 crank with new bearings
CVH head with 3 angle valves seats and a full porting job
Newman cam with solid lifters and veriner pully
Std head gasket
Gotech
Dark green injectors
Front mount intercooler
GT series turbo for around 23psi
Paddle clutch
Rebuilt gearbox

S.

 

I'd like to make a bold statement and claim that if pistons and rods are to be replaced in a CVH, then it's cheaper to build a zetec to start with.

Also, if you're on a budget, then Megasquirt will be a good choice. I'd also like to point out that greens are very expensive injectors. And newer Bosch injectors that flow the same may be cheaper then a set of used greens.

 

huge difference in money from 250bhp to 300 even from 270-300 its not cheap,imo 250 is enough if not too much for a fwd road car, only when you compete your car at events does it make sense to start seeking more power but then you need to start thinkin about sorting other areas ie suspension/gearbox etc so that 300bhp engine ends up costing you twice what you thought it would be plus your gonna need the same money again to get the best out of it with modding other areas
for 250 bhp id stick with the cvh as its a cracking engine at that power level if its 300 your after then you cant compete with cc but unless you spent a wedge on the zt then your gonna make peak power at lower rpm than the cvh and have to keep changing gearbox's every month

 

thanks peeps thats given me a few things to think about. i think ill start buying parts a little at a time (intercooler,turbo,etc) and decide where to go once the rest of the car is done.

 

1600cvh all the way and u might not need to spend as much as u think

a little 0ver 200bhp and it will see off most other cars

 

Good advice there,I'm actually thinking of spending money on my engine to get around 250BHP.Think I'll stick with CVH after reading the above info.Regards,Micky