performance of a 250 4 stroke

**Voodoo** · 17th February 2005, 18:52

they are pretty good times, shows what a good performance package the Vr4 is, and so are evo's seen some good times outta those for bugger all mods , i would say though , ive also seen other 2l turbo cars (4wds included) have to sepnd quite abit to get those times, yeah maybe the driver is to blame, but in saying that, then most traffic light drags will have those same drivers

**k14** · 17th February 2005, 19:20

Originally Posted by Monsterbishi

ok, you need a reality check here, it takes sod all to send a turbo car into the 13's,and 12's are not that much harder, example:

My old 1989 Galant VR4 :- Rear muffler unbolted, interior stripped out, boost turned up to 14psi(2 over stock) 13.7@97.7mph

Friends '88 Galant VR4 :- Bigbore exhaust, pod filter, interior stripped out, decent clutch and boost upped to 20psi :- 12.9@103mph

Friends '92 Galant VR4 :- (Newer shape, v6 model) :- Rear muffler removed, pod filter, interior stripped out, stock clutch, boost upped to 18psi :- 12.7@107mph

And i'm sure all those cars can be used with those mods for the persons daily transport? Like I use my bike for?

**Monsterbishi** · 17th February 2005, 20:29

They are all daily drivers, and quite driveable I might add, even those in our club in the 11sec brigade, most are street driven.

That's the great thing about Turbo cars, boost is easily controllable, both by a boost controller, and by careful pedalwork, so even quick cars can be street friendly, the one thing that makes a car less driveable on the street - is the flywheel/clutch setup, a lightweight flywheel means more rpm's are required to get the driveline moving, and clutches with less surface area - ie 4 puck brass button clutches(my personal favourite) make heavy traffic/intown driving a chore, but with the right combo of clutch'n'pressure plate, you can get the best of both worlds.

**John** · 17th February 2005, 20:33

Originally Posted by Monsterbishi

They are all daily drivers, and quite driveable I might add, even those in our club in the 11sec brigade, most are street driven.

That's the great thing about Turbo cars, boost is easily controllable, both by a boost controller, and by careful pedalwork, so even quick cars can be street friendly, the one thing that makes a car less driveable on the street - is the flywheel/clutch setup, a lightweight flywheel means more rpm's are required to get the driveline moving, and clutches with less surface area - ie 4 puck brass button clutches(my personal favourite) make heavy traffic/intown driving a chore, but with the right combo of clutch'n'pressure plate, you can get the best of both worlds.

oh yea like that one that plowed through the intersection and rolled a few weeks back and that one that killed those children and there mum..

Not an attack on you but I question why such things are on the road. And I'm pretty layed back about cars bikes and anything with an engine but there HAS to be a line somewhere.

**Monsterbishi** · 18th February 2005, 18:33

Originally Posted by John

oh yea like that one that plowed through the intersection and rolled a few weeks back and that one that killed those children and there mum..

Not an attack on you but I question why such things are on the road. And I'm pretty layed back about cars bikes and anything with an engine but there HAS to be a line somewhere.

You're just biased, that's all, pretty much any bike 600cc's and over can blow by a highly tuned sportscar, would you prefer those to be off the road as well?

It wasn't the car that killed the mother and children, it was the driver, if you can recognise this fact, then you'll understand the pointlessness of your post.

**CTM** · 19th February 2005, 09:25

If we look at cost to performance, nothing can beat a 250. Cars cost heaps to modify and to get them to do a 14sec 1/4 mile will cost you alot more than a stock standard 250.....

**Sheep Dags** · 19th February 2005, 11:02

plus who wants a stupid cage?!! a bike will not only compete with the cars on a straight but will fuckin WHOOP their arse in the twisties!

**Teflon** · 19th February 2005, 17:20

I would be suprised if those 250's put out 45hp at the wheel, maybe at the crank.

I'm sure my NSR put out around 45 to 50hp.

Just learn to ride the thing hard, who cares about hp figures, doesnt really matter in the real world.

**Monsterbishi** · 19th February 2005, 18:06

Originally Posted by CTM

If we look at cost to performance, nothing can beat a 250. Cars cost heaps to modify and to get them to do a 14sec 1/4 mile will cost you alot more than a stock standard 250.....

99% of 4wd turbo cars do a factory 14 second 1/4...

That's why I listed the three examples that I did, each car, including mods, cost less than $8k

**John** · 19th February 2005, 18:27

Originally Posted by Monsterbishi

99% of 4wd turbo cars do a factory 14 second 1/4...

That's why I listed the three examples that I did, each car, including mods, cost less than $8k

but for 8k you can get a alot of 250.

no 4stroke 250 puts out 45bhp, its all crank figures, and they are all 'over inflated' figures as well in most cases.

Just food for thought in the point your trying to make.

**TwoSeven** · 19th February 2005, 22:11

lol. I suspect you may want to eat those words. Us 250 owners could probably show you reams of non-inflated dyno charts of cibby 250s putting out 45bhp at the rear wheel.

I tuned mine to 40bhp standard jetting/filter with a linear power curve, and I hadnt even started with performance mods.

Remember that many fast sports cars also get built with motorcycle engines - so it pays not to under-estimate the state of tune that bike engines can get to. For example the DAX Rush kit car uses a 350bhp turbo busa engine and only weighs 400kg.

**Atomic** · 20th February 2005, 08:49

Originally Posted by Sheep Dags

a bike will not only compete with the cars on a straight but will fuckin WHOOP their arse in the twisties!

Dream on....

**John** · 20th February 2005, 12:24

Originally Posted by TwoSeven

lol. I suspect you may want to eat those words. Us 250 owners could probably show you reams of non-inflated dyno charts of cibby 250s putting out 45bhp at the rear wheel.

I tuned mine to 40bhp standard jetting/filter with a linear power curve, and I hadnt even started with performance mods.

Remember that many fast sports cars also get built with motorcycle engines - so it pays not to under-estimate the state of tune that bike engines can get to. For example the DAX Rush kit car uses a 350bhp turbo busa engine and only weighs 400kg.

Sorry I was refferring to stock 4stroke 250s.