Toughening up an f5a

[EVL_801]

Hi guys im about to have to do a rebuild on my lil f5a and im wondering if there if is any way i can prepare the engine for the punishment of sitting on 90ish ks an hour for a 2 hour (200kish) round trip most days of the week any advise would be appreciated

Cheers Vaughn

[holk]

Get an F8B. Will sit at 100 for as long as you want

[Tez]

I don't think a properly rebuilt F5A should have any problem sitting on 90 for an hour, twice a day. - If you think about it, unless you're travelling across the nullabor or doing the entire distance on a freeway, you're not really doing a full 60 minutes @ 90 - you will be slowing down every 10 minutes or so for towns etc. and an F5a should cope with that sort of work. Now if you tried running a full 60 minutes continuously @ 110... If you're really doing that sort of driving then maybe an F5A is not the motor (car) for you.

[EVL_801]

Thanks for the help guys, i do travel on the highway from launceston to where i work which is 110 all the way there but as i said i only sat on 90 but as for the problem im buying a car to drive to work them mighty boy will become the weekend car, now if i could seel my rx7 id be fine lol

[Brayden]

Even at 90 you're spinning the motor at about 4700RPM, which it isn't going to like for 2 hours every day. I'm with holk on this one, F8B is the best answer. It will happily sit at freeway speed for as long as you want.

[suzutey]

F8B is the best answer. It will happily sit at freeway speed for as long as you want.

. so at 110 or 90? my current stuffd motor only likes 80. any faster and it buzzes its tits off and craps itself. ha. i have high hopes for the new f8b im building then.

[Brayden]

An F8B in good condition with matching gearbox will sit at 110 no problems.

[suzutey]

sounds good to me. im coming close to finishing my new f8b, just new everything and bored out. if it isnt reliable after this then i think ill have to sell it. . is there any bolts or small bits that you wouldn't normally replace (in a typical rebuild) but that you personally think are worth replacing in the boy? had any problems?

[Brayden]

In the course of removing/rebuilding/refitting a motor/box I always replace any bolt that has a decent amount of torque put on it, as well as all old hoses etc.

The hoses aren't cheap, but it is worth more than cooking a motor if you split one.

[ToranaGuy]

The hoses aren't cheap, but it is worth more than cooking a motor if you split one.

That's a good philosophy to use in general when working on a car - if you are not on a shoe string budget, then if you find something that isn't looking so crash hot, replace it.

Cheers

ToranaGuy

[suzutey]

is there a kit of hoses or sumthing you can buy? or just by high temp hoses and make them fit?

[Brayden]

I bought all my hoses and other parts from Mick at SuziWorld in Melbourne. He's usually on par with competitor prices.

[suzutey]

yeh righto, well i rang them up today to find out about rods, they said $40 each. but suzicare in adelaide said $25. so maybe they arent the cheapest

[Brayden]

I didn't say they were the cheapest. You also have to ask if the parts are genuine or aftermarket.

[suzutey]

on par . lol . who would say is the cheapest then ?