Small Turbo

[Jonnybravo]

Some of you may be aware of Rod Tarrys Sierra Cosworth. So far it has cracked 208mph in 1.25 miles and now he is looking for ( I believe ) 215mph in the same distance so a new engine and now even bigger turbo from the recent dyno day has been fitted to help achieve this.

The pictures say it all.

















All of this + a LOT of nitrous and owned and driven by someone over 60 !

Oh and its 2wd

[PeteUr]

Credit where credit is due that is mental, remember seeing reviews of this before

[Jonnybravo]

Old Turbo Graph 838hp, 666lbft, no gas



Sorry if this is a repost, I know the latest pictures won't be as he only just updated his thread

[Kieron20V]

Hahaha, thats insane, nearly as big as some of the "small" turbine engines I see at work.

That reminds me too, I should invest in Shell/BP/Esso.

[dest]

I used to love reading about his testing and antics on PF!
That turbo is insane, it looks bigger than the block

[Jonnybravo]

TBH and I am sure you will agree a lot of the crap that comes with all the top speed stuff annoys me but most of it is forum banter.

It can't be denied though Mark does know how to build a proper engine and map them as well.

I still shudder just at the thought of how much power that engine develops within 3000 - 4000rpm let alone what it would be like with the gas switched on !

Its mentally fast, I'd love to see it on track being driven with some proper aggression !

[dest]

I agree mate!
There are some very knowledgeable people on PF, but sadly outweighed by ****wits.... that said, there are also some seriously funny ones too!

[Jonnybravo]

I agree mate!
There are some very knowledgeable people on PF, but sadly outweighed by ****wits.... that said, there are also some seriously funny ones too!

Go and read the "who would you like to slap on PF" thread thats in GD now

@ the Tags

[S2central.net]

Good grief... I've never seen a turbo so big fitted to anything this side of a truck or train engine... mentalist

[Jonnybravo]

I bet you wouldn't mind having a go at mapping that would you Paul !

[S2central.net]

Not on your nelly... I be afraid of a blower that big !!!

[Jonnybravo]

Mapping that on the road must be a frightening experience, 10 seconds on WOT in 5th and I should think your seeing nothing but solid white lines and the inside of your own head as your eyes get pulled back towards your brain.

In one way pointless, but in another a very impressive achievement to see those sort of figures from such a small engine.

[K Simmonds]

Its mentally fast, I'd love to see it on track being driven with some proper aggression !

Awesome build, that turbo is unreal. The power curve really is quite something and the torque is mighty impressive as well. However I don't reckon it'd be any real use on track, apart from pure tyre shredding fun. A similar car with a smaller turbo, less power/torque combined with less lag would be quicker round anything other than a track with very long straights. Extremely impressive none the less, I assume the guy's using some sort of custom gearbox to achieve that speed.

[Jonnybravo]

He uses a Tremec gearbox and some oldschool rear diff, seems to do the job.

[K Simmonds]

He uses a Tremec gearbox and some oldschool rear diff, seems to do the job.

Dam right it does, 200+ MPH in a Sierra is completely insane I've just read thorough the thread more thoroughly and notice it'd RWD, presume RS500 base car? As well as being owned by an OAP, that's one brave old codger!!!! **** the bus pass