Learn something new everyday TVIS ACIS

[Lauren]

so what you are both saying is if one of my customers has high lift cams fitted,bigger injectors and chipped he wont need to worry about moving the t-vis point cut in?? of course he will! theres an application for everything which is why im doing it....jees!!! sometimes i wish i keep these things to myself if im going to get shot to xxxx.

Wouldnt it be nice to have a knob on the dash that moves the t-vis cut in point to wherever you want and can always be set back to factory? try not to be so negative people.

Ah sorry Paul, i didn't read your earlier post. I thought what someone was implying that TVIS opening point could be improved on a stock car etc..

[PW@Woodsport]

no probs lauren,im a bit snappy anyway....mens week.....lol.

[MartG]

From what I gather, with the possible exception of the mk2 rev1 spoilerless n/a with the qualcast engine that I dont know much about, all MR2 Mk1 and 2s had TVIS regardless of aspiration

Sorry to be pedantic, but the SC didn't have TVIS.

Nor did the later 4A-GE in the Corolla GTi

[Lauren]

From what I gather, with the possible exception of the mk2 rev1 spoilerless n/a with the qualcast engine that I dont know much about, all MR2 Mk1 and 2s had TVIS regardless of aspiration

Sorry to be pedantic, but the SC didn't have TVIS.

Nor did the later 4A-GE in the Corolla GTi

Yep i know that. they have a small port head too as well as some other differences.

[Dandylyon83]

Hmmm very technical! and confusing! Study mechanical engineering at uni and am part of the formula student team building single seater 600cc yamaha r6 powered car. Went to a lecture by renault F1 and they mentioned stuff about variable length runners. It's mad to think all this technology came from the early 90's! Now ya get the dam government whacking huge taxes and limiting speeds. Silly if ya ask me! Why bother develping 1000bhp cars when a boy racer in a nova (oops sorry used the 'n' word!) is likely breaking the law and overtaking ya? But good lads to all the people at toyota and honda who are pushing things forward for us speed freaks!

[MartG]

It's mad to think all this technology came from the early 90's!

Actually TVIS was on the MR2 when it was launched in '84, and I think it also featured on the Corolla GT a year earlier.

[DeusMR2]

Hmmm very technical! and confusing! Study mechanical engineering at uni and am part of the formula student team building single seater 600cc yamaha r6 powered car. Went to a lecture by renault F1 and they mentioned stuff about variable length runners. It's mad to think all this technology came from the early 90's! Now ya get the dam government whacking huge taxes and limiting speeds. Silly if ya ask me! Why bother develping 1000bhp cars when a boy racer in a nova (oops sorry used the 'n' word!) is likely breaking the law and overtaking ya? But good lads to all the people at toyota and honda who are pushing things forward for us speed freaks!

sorry to diverge off topic but what uni you in Dandylyon83? im doin same course at ucl..some lucky bu88er signed up for the formula student project less than an hour before me now i might end up investigating fatigue cracks in train wheels!

[Dandylyon83]

I'm at manchester uni, formely UMIST. You going into 3rd year then? Wish i was doing it for my third year project, it'd be so much more fun than testing hip protectors for the elderly! I just do it out of hours generally. Try and get on the team next year, it's a great laugh, stressful at times but where else are you gonna do 0-60 in 2-3 seconds at uni?!! Great start to get into car related engineering.