Is 240hp good for a 8v mk1?

[JoshFair]

Hey guys, just met a dude who has been building engines for years, and has a 8v mk1 engine sitting there with heavy duty titainium valves. Worked head and heavy cam, new pistons and its all ready to go. Not sure of other specs but it has a max power potential of 240 pony's. What would that be like compared to a 16v? I know nothing about engines so help me out cheers!

[static1800]

A stock 16v will have around 130-150hp or there abouts depending on the engine.

It would be an absolute rocket! if it is non turbo I couldn't imagine it would be to streetable would have to have an enormous cam!

Would make a great race engine!

[JoshFair]

hmmmm well i reckon it would be wasted on me then.. as i just want a sick daily.. the guy is a pro mini sprint driver.. and builds them from scratch with 4age engines.. and recently sold the shell that wrapped around this beast.. so yeah... he said it will be there for whenever and if i decided to buy it... maybs i should pay him to fit it? what else would i need to do? new gear box... new.... ?? oh and twin webbers 2inch full thru exhaust and extractors would be sick as well

[type 17]

Could you find out the specs for this motor or call pass on this gents details?

Cheers Pedro

[JoshFair]

will do should i be expecting a feeding frenzy?

[GoLfMan]

240bhp from an NA 8v???

not likely mate!

VW motorsport was getting 300bhp from the 16v back in the 90's.

Sorry i just dont believe that figure....

[velly_16v_cab]

sounds like a pure race motor (running iTB's or massive carbs)
figures sounds very high, but i do not know what race spec 8v's put out. i know the 16v's were 300 and thats with a massive amount of work!

Velly's top tip of the day.....
here is some foor for thought when people throwing engine power figures about,
I had many many dealings with N/A 16v's back in the uk, most top tuners will stuggle to break the 200BHP with a N/A 16v the average output of most valvers is about 180bhp (flywheel)
8v's you tend to see 150-160bhp tops

I tend to get ready to call BS when people start post 200bhp+ NA engines that some guy built in his shed

[Stephy]

Holy cow! The gtr is 275HP stock but running 14psi. An 8v with nearly that I would love to see, yes, could be a race built engine, but is it humanly possible to push that out of a na 8v? And I'm still assuming it would be fwd only...? Who has this?

[Spyda]

Hold up, no one said it had 240hp. It has a max potential of 240hp, so does prity much any engine, even a stock 8v can make 240hp at a million rpm for a split second. Its like saying a turbo can handle up to 600hp, that doesnt mean its going to make 600hp as soon as you bolt it on.

He didnt indicate if it was turbo or not, or even if it was carby or injected, or dispacement or even what 8v. I read about 8vs making 200hp NA and 250+ turbo.

Find out the actual specs mate and then you will be able to get more help. If it runs more than 150hp at the fly then you will need to start thinking about cluch and gearboxes. Depending on how its built, its prity safe to say any more than 150hp NA carby wont be a reliable daily.

[JoshFair]

Cheers for the thoughts guys this guy is legit, and a absolute pro, so i trust him when he is quoting power numbers. Just not sure if this engine is for me! Oh and ps. wars have been lost/won because someone underestimated what you can build in a shed

[velly_16v_cab]

FYI - you can get 150bhp out of a 2.0 k-jet motor and run it all day long as an everyday car.


still would love to know more about this 240bhp engine and what spec it is.

[GoLfMan]

FYI - you can get 150bhp out of a 2.0 k-jet motor and run it all day long as an everyday car.


still would love to know more about this 240bhp engine and what spec it is.

x2 until then, Im a sceptic (but happy to be proven wrong in this case!)

[Water Boy]

I know a lot of 8v engines were used in Formula 2 in the late 80's early 90's.

They would build them to rev like crazy and only run for a race meeting then need a strip down. Constant 9k limiter abuse in a 450kg open wheeler is epic win but having to strip down engines after evry race meeting not so win.

Have a chat to this bloke and get him to build you a warm street engine.

Or better still go and see Andrew Robison. He knows his stuff and im sure would be more than happy to help you out....

[jayjay]

i don't think it's especially impossible to build high power 8v motors...

mkIIroc in the states pulled 150whp on a counterflow 8v built in his back yard.. standard JH head. i don't know if i trust the figures but they wouldn't be that wildly inaccurate.

240hp even at the fly for an all motor 8v is definitely pushing limits though.

[velly_16v_cab]

i don't think it's especially impossible to build high power 8v motors...

mkIIroc in the states pulled 150whp on a counterflow 8v built in his back yard.. standard JH head. i don't know if i trust the figures but they wouldn't be that wildly inaccurate.

240hp even at the fly for an all motor 8v is definitely pushing limits though.

you dont see many g60's pushing out that sort of figure TBH