42 replies to this topic

[1275 SPRITE]

My 90bhp 1293 hit just under 120 on the rolling road, although no wind resistance, there is twice the rolling resistance on the tyres as there is 2 contact patches on each tyre. That is an accurate figure, as its obviously a calibrated piece of kit, so I doubt your 998 got anywhere near 118. Probably closer to 90 to be honest.

Going from a mini speedo is next to useless

Yours has lots done to it though, yours will shift, no doubt about that!

[Burnard]

Been wondering for a while,

What is the rev limit of a stage one 998? I just kinda assumed it was 6500 as thats where the line is on guessworks website, although ive not taken it about 4.5k yet.

[minikidx14]

ive had a 998 rev to around 9000. skimed head, no airfilter, straight through pipe with standared manifold

[mini93]

ive had a 998 rev to around 9000. skimed head, no airfilter, straight through pipe with standared manifold

what was the rest of the engine? cam valve springs etc?

[Burnard]

That reminds me,

What is the biggest limiting factor for getting high revs?

Cam, valve springs, rockers, fueling?

Edited by Burnard, 29 September 2009 - 03:00 PM.

[Asphalt]

Funny thread...

[minimoz]

had 110 according to my MPIs speedo,what dya reckon that really was?couldnt hold like that for too long though

by the way this was on a private road.

[Ouster]

ive had a 998 rev to around 9000. skimed head, no airfilter, straight through pipe with standared manifold

No you didn't.

[minikidx14]

ive had a 998 rev to around 9000. skimed head, no airfilter, straight through pipe with standared manifold

what was the rest of the engine? cam valve springs etc?

All standared as far as i am aware

ive had a 998 rev to around 9000. skimed head, no airfilter, straight through pipe with standared manifold

No you didn't.

umm... yes i did. Well thats what the revcounter was telling me

[HARBER07]

Simply not possible.

[minikidx14]

was in the number 14 mini

and the rev counter -


It was in 2nd going down a hill with foot right down

and engine only lasts about 3 15min races

normaly they would be running about 7000-7500 rpm


example of the racing -

Edited by minikidx14, 29 September 2009 - 05:27 PM.

[mini93]

ever heard of the term valve bounce?? im pretty confident in saying that it would simply stop you reaching those kinda revs, but hey...if ya say so right

did you have your tacho set on the correct number of cylinders, sometimes it reads double or 1/2 depending if its 8 or 2 cylinders

[minikidx14]

as i said before, its what the rev counter was telling me but it was screeming

and it might of had harder springs but as i didnt build the engine i dont know exactly what was done.