Top Speed?

[Guest Handlebars]

As I finally got round to getting a speedo cable, I thought I'd see what the top end was. (On a private motorway obviously) My 3a has a standard 2l pinto (recon) and a four speed 'box. 85mph. Is this about right, as it seems a bit crap.

[Big Jim]

Yep, it is a bit crap! down to type of carb, ignition, etc. etc.............. expect 95 -100+ mph.

 

Oh! and they will go slightly faster with sidescreens on, than without.

[Guest Handlebars]

Righty-ho. Sounds like a tune up might be in order. And the screens were off too. Lot more fun!

[Guest Tim Norman]

No screen and big balls =120mph on the clock in my old mate Bob

[Guest Handlebars]

Wonder what Bobson is going to be like ?

[Richard Grove]

I got just over 110mph on the long straight at Bruntingthorpe - 2B with Vx XE.

[Dave R]

90 without trying at all with standard 2l pinto on way back from test

sorry did i say 90, meant 70

[Guest rizla]

133mph at the rev limiter but it gets there soooo quick

[Guest red7]

Been to a track day then?

[Guest rizla]

eerr nope

[BigLee]

125+ ish ......

[Guest salty_monk]

Mine used to go 115-120 ish... with the 3.92 diff... about 102-105 with the 3.62 diff.

 

2L unleaded head, Piper 285, 38 DGAS, Aldon Dizzy, 4-1 straight through.

[Guest Stuart Ainslie]

How many of these speeds are validated ?

 

People always rattle on about top speeds of their cars but take into account the inaccuracies of your average speedo against say a GPS, and they look silly...

 

Just came back from Le Mans in a newish Porsche and at speed, that was reading 10 mph over. What is your average DIY / Ford / Honda etc. speedo going to read over ?

[Guest johnboymac]

85mph in a 1.6 carb no screen (helmets) - still had a little more to give but was its first shakedown so didn't want to overdo it....

 

I agree the point re gps\validation - I regularly check my speedo against my gps in the Laguna, it tends to read 50 at 45(gps).

 

J

[Jon Bradbury]

Cor... weedy!

 

The DOHC carb version managed 100 on the way to SVA easily with plenty left over. And this was with the RH exhaust baffle thingie although admittedly without a windscreen. I decided that was enough in an untested car (but then how do you test it safely?) and backed off.

 

This engine only has a measly 105bhp and that's when it was new. Mine's been round the clock.

 

Best get yours down the tuners!

 

Oh, as regards speedo inaccuracies, if your SVA was recent or you still have the speedo test results you'll know how accurate or otherwise your speedo is. At an indicated 100 I was probably doing 95.