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Originally Posted by Tannerman
The engines are actually known for holding power quite well.and the whole point in doin a conversion is to get better performance right?and in most cases you do replace standard parts....a gti6 engine u have to replace parts to get that sort of power...same with a vts/vtr or pretty much any engine for that matter.lol.all oem parts have there weakneses when being tuned wether it be the 406 engine or watever you always take a risk.
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out the box it makes rubbish power. Its a lot of work to start off with no real gain. I cannot see the standard gearbox ratios being great either. The engine itself is not going to be massively more heavy than the tu 16v but the gearbox is a good 10-15kg heavier.
Quote:
Originally Posted by NismoSteve
No probs, I've been talking to some Dutch guys who run 300brake on standard bottom ends in their 205s.
With good management some bigger injectors, and a manifold from DP engineering which mounts the turbo away from the bulkhead turbo choice is no issue (the standard turbo is one off T25) but you can swap internals over for T28 compressor side for 250bhp easy enough. But that it for the standard exhaust manifold. Then you can put the 2.1 xud crank in and some C20let pistons for getting almost 2.2 and even more torque. Just don't write them off because its 8 valve. They're a good strong motor when treated right.
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Once you start buying expensive manifolds, turbo parts, aftermarket ecu's etc then you have to ask why you start with this low spec engine in the first place. That adds thousands to the cost. I'd rather find a better starting point to make getting the same power easier. Why limit yourself to 8v and a low revving engine. If you are going to buy the these mods then start with them to broaden your options. Theres more interesting engines in the PSA range. How about looking at a hybrid such as the 2.2 petrol bottom end, with something like a gti-6 head, DP turbo manifold and a second hand turbo from another model (raid the VAG boys parts as they fit bigger turbos to their 1.8T)
A gti-6 with cams hits 200bhp out the box so realistically the hassle of this engine is only worth it if you are going for serious power, but it simply does not sell itself as suitable for this task. Heck i'd rather get a VAG 1.8 turbo. Far simpler to modify and just the same complications for fitment.
You could buy a T16 engine; fit that and get 300bhp cheaper than the 8v turbo in the end.
Just because you have not got the money now should not justify being cheap. Save up and do a proper job with a proper engine.