3.7 Speed Six Engine Designed and Engineered by RND

[JonRB]

dpd3047 said:

In answer to the Omex, It does have Knock sensor also it can run seqential injection, we are running semi sequential and you can have launch and traction control and it half the price of the Syvecs.

Perhaps my information is out of date, but I thought Syvecs was the only ECU for the Speed6 with knock sensors? I certainly remember Racing Green telling me that Ryan was the first to crack the problem and that up until that point everyone said it couldn't be done. Perhaps Omex have since introduced it?

[ShiDevil]

JonRB said:

Perhaps my information is out of date, but I thought Syvecs was the only ECU for the Speed6 with knock sensors? I certainly remember Racing Green telling me that Ryan was the first to crack the problem and that up until that point everyone said it couldn't be done. Perhaps Omex have since introduced it?

I am led to believe that TVR Power has started to introduce MBE with knock sensor.

[Tvr Power]

dpd3047 said:

No its not a word it attension to detail, factory balance can be + or - 4 grams on the rods and pistons, crankshafts are as stated thats why theres a damper on the front to cut down on the harmonics a standard balance as in after market performance parts you will find they are within 1 to 2 grams of each other.I use Andy at Basset Down Balancing and thats what he does.

Speed six cranks are one of the easiest crank to balance , to state they can be out 28 grms" bullst comes to mind" ! The only reason they would be that far out is who ever is trying to rebalance TVR cranks doesn't balance in 3 stages starting from 450 rpm x 900 rpm then finally 1400 rpm with the rear flywheel Dowl installed that weighs 10grm hence why you see 28 grms out if not installed whilst balancing , as for front crank dampers you name me a modern car manufacture who doesn't use one ?

Dom

[donski58]

macdeb said:

Thanks but that is what I'd expect from a normal 'proper' balance [which is what mine is having done], the whole reciprocating assembley; pulleys,trigger wheel,damper,crank,flywheel,clutch pressure plate,rods and pistons. Still hasn't explained what is 'race' balancing? Or is it just a word put in front to make it sound 'racier' when talked of? Not picking a fight, just want to understand
[love the car, I had one once and wish I still did. Is it reflex green/purple, mine was]

Edited by macdeb on Friday 17th January 15:36

Edited by macdeb on Friday 17th January 15:37

Hi macdeb

Thanks for your comments, the colour is Reflex Charcoal which as you described flips colour from green to purple to dark charcoal.

Don

[donski58]

JonRB said:

Perhaps my information is out of date, but I thought Syvecs was the only ECU for the Speed6 with knock sensors? I certainly remember Racing Green telling me that Ryan was the first to crack the problem and that up until that point everyone said it couldn't be done. Perhaps Omex have since introduced it?

Hi JonRB
I have a knock sensor installed on my Speed 6 which is working with the Omex ECU. I understand that previous versions of the Omex that were fitted did not have the full Omex loom mod which allows the mapper to utilize all of the ECU's features. Perry Wadham has the OMEX 710 ECU in his Tuscan Challenge Race Car, mapped by the same engineer.

Don

[dpd3047]

I stick by my comments on the S 6 crankshafts its fact!

[JonRB]

dpd3047 said:

I stick by my comments on the S 6 crankshafts its fact!

This should be good.

I assume you do know that 'TVR Power' really *is* Dom of TVR Power Ltd.?

[WolfyJones]

JonRB said:

This should be good.

Not as good as your fingernails, love the colour

[JonRB]

WolfyJones said:

Not as good as your fingernails, love the colour

I now have one an exact match for my Sagaris.

[WolfyJones]

JonRB said:

WolfyJones said:

Not as good as your fingernails, love the colour

I now have one an exact match for my Sagaris.

[coetzeeh]

It's OK to disagree.

Bottom line is Donski58 is happy with the results - balanced crank and all

[macdeb]

Cool, still waiting definitive on 'race'.

[donski58]

macdeb said:

Cool, still waiting definitive on 'race'.

Hi macdeb
I believe that this has already been answered, i.e. more exacting tolerances equating to better performance at high RPM?

Don

[donski58]

coetzeeh said:

It's OK to disagree.

Bottom line is Donski58 is happy with the results - balanced crank and all

I appreciate your comment coetzeeh thank you, so far all is well but only time will tell.

Don

[Don1]

Superb, some good news. Very glad to hear it, and the numbers look promising as well.

Can I ask what a 'anti reverse spike collector' is please? It sounds like something Mad Max's car should have....

[Tvr Power]

dpd3047 said:

I stick by my comments on the S 6 crankshafts its fact!

Well I'm sure your change your mind once I've stripped your ex customer speed six engine that actually vibrates likes buggery , Dave your more than welcome to come to power and witness your crank on our balancer , maybe your learn something in the real world of engineering



Dom

[donski58]

Don1 said:

Superb, some good news. Very glad to hear it, and the numbers look promising as well.

Can I ask what a 'anti reverse spike collector' is please? It sounds like something Mad Max's car should have....

Hi Don I hope you are well and not working too hard. I will leave Dave to explain the reverse Spike on the exhaust as I am not an expert. Have you got your Tam all sorted now?

Don

[donski58]

spitfire4v8 said:

I've mapped a few Challenge cars for 7 years now and yet to see one fitted with an omex. Who gave you that info? MBE, Emerald and Motec are the main players in the race cars..

Hi Joolz any sign of your uprated Air Box please?

REF the Omex 710 please note the article on page 36 of this months TVR Sprint magazine with regard to Perry Waddam's Tuscan Challenge race car.

Don

[alex_gray255]

[Don1]

donski58 said:

Hi Don I hope you are well and not working too hard. I will leave Dave to explain the reverse Spike on the exhaust as I am not an expert. Have you got your Tam all sorted now?

Don

To be honest..... No. I've kind of lost faith in it, and it's sitting it the garage unwashed and slightly sorry for itself. I've got a house move coming up, and after that I'll ship it over to someone who can make me believe in it again. Then I hope to use it for what it was designed for - on the track!