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Haynes Roadster engine options
mikeb - 30/3/07 at 09:49 PM

Hi, I have been seriously considering building the latest haynes roadster, it about the only thing I can afford!

I would be looking for a cheap engine and transmission to give ~130bhp. However I would like to keep a flat neat bonnet with no air filter or buldge. Mr2 are cheap as chips but I don't know if the engine will fit within the bonnet lines and I know idea of a cheap rwd gearbox. As I'll be on a budget I need readilly availble bits not expensive conversion parts. Any tips well received.

My old alfa spider had a lovely twin cam carbed 2.0 lt with rwd but I doubt you could get the parts cheaply~!


DarrenW - 30/3/07 at 09:52 PM

I was told the little punchy 1.6 Toyota was a nice neat engine and possibly sits lower than a zetec. Might be a good choice. For budget conscious options finding a Siarrea with 2.0 Pinto is cheapest bet but i dont know if it will fit Roadster.


Macbeast - 30/3/07 at 10:16 PM

Book picture shows Pinto (which would maybe need some work to give 130BHP) and it gives suggestions how to fit other engines.
Incidentally many people say modify the rocker cover oil entry to lower height, but surely the cambelt cover is about the same height so is there any point ?


Ivan - 31/3/07 at 05:58 AM

The Toyota Twincam 1600 20Valve is a very popular motor here in South Africa for 7's - gives great performance and reliability with easy gearbox choice - and about as near as you can get to the original Lotus 16V motor. And they're plentiful and cheap - in fact it's cheaper and less hastle to replace them than to repair them if things go wrong


pajsh - 31/3/07 at 09:00 AM

quote:

Incidentally many people say modify the rocker cover oil entry to lower height, but surely the cambelt cover is about the same height so is there any point ?


As I'm sure most pinto owners will confirm, the oil filler must stick up at least 1-2 inches over the cam belt cover. My cam cover touches the underside of the bonnet (another job to fix) yet the carb comes through and the sump needs chopping for sensible ground clearance.

With side draughts, modified oil filler and a chopped sump it will fit. I'm sure there are better choices though. Zetec is the most obvious.


mikeb - 31/3/07 at 10:21 AM

So what gearbox options are there for the toyota 4-age engine. I know some old corrolas were rwd?


turbodisplay - 31/3/07 at 10:46 AM

vauxhall 8v 2.0. Cheap plentty arround, very good engine.
For a few 100 more get 16v.

Rwd gearbox use vauxhall carlton. Very strong gertrag gearbox (might be a bit big?)

Darren


Macbeast - 31/3/07 at 11:51 AM

Maybe the one in the book pic has been cut down already then...thanks