Mbe check over and latest emissions test

[Sardonicus]

SILICONEKID345HP said:

Mine is TPS but there are better methods when it comes to mapping .

Correct air mass or manifold vacuum (MAP) or both the Rover is quite accommodating generally with just RPM & TPS though but its hardly state of the art if your after ultimate engine control in fact its one less than the Lucas system

[ClassicChimaera]

SILICONEKID345HP said:

Mine is TPS but there are better methods when it comes to mapping .

I've read that but why?

Seems totally calibrated to me.
Is this going over the top for our old inefficient lumps or is there something to be gained is it even more accurate at fuelling the engine.
Nice one Simon

[SILICONEKID345HP]

Sardonicus said:

orrect air mass or manifold vacuum (MAP) or both the Rover is quite accommodating generally with just RPM & TPS though but its hardly state of the art if your after ultimate engine control in fact its one less than the Lucas system

Does Dale Baden use an over sized Maff combined with TPS for ultimate control..

So where does TPS fall behind the other methods ?

[Sardonicus]

ClassicChimaera said:

I've read that but why?

Seems totally calibrated to me.
Is this going over the top for our old inefficient lumps or is there something to be gained is it even more accurate at fuelling the engine.
This method Daz,,,, does it have a name and I'll endever to,learn the basics.

Its termed "Alpha N" Alun and your right in these light briskly driven cars the old RV8 really dont appreciate this finely metered fueling that is possible IMO especially the lairy tuned ones they just want air and fuel in ballpark sensible AFR's yes sometimes even a tad rich, of course I cant speak for everyone but ..... just my cents

[ClassicChimaera]

Sardonicus said:

ts termed "Alpha N" Alun and your right in these light briskly driven cars the old RV8 really dont appreciate this finely metered fueling that is possible IMO especially the lairy tuned ones they just want air and fuel in ballpark sensible AFR's yes sometimes even a tad rich, of course I cant speak for everyone but ..... just my cents

I'm slowly gaining a liking for reading,,, I've seem to like writing
I'll read up.

[ClassicChimaera]

QBee said:

Alun, you have driven a car with one throttle return spring removed.

Mine.

I removed the second spring in 2013, 30,000 miles ago.
Much nicer throttle, IMHO. Much easier to be precise with it.
There is also a backup spring in the throttle mechanism, I think you will find, so your car has three.

I remember those drives well,
Your right it's very subtle and smooth.

I've not had chance to look yet. Cable will need oiling anyway so when I can get on it I'll have a proper look.

[Sardonicus]

ClassicChimaera said:

I'm slowly gaining a liking for reading,,, I've seem to like writing
I'll read up.

Presuming we have a decent advance curve of course for my above opinion on fueling Alun and I am on a performance drive attitude rather than ultimte drive-ability and eeking out every last MPG which is why Alpha N works so well for many of us

[ClassicChimaera]

Alpha N
Ecu only using TPS and RPM no use of MAF to determine fuel map. Usually down to the mapper to set timing as part of building a map. Does that sound close?
Any engine changes require re map as it's not adaptive.
This based on BMW info I just skated through!
This is what I have isn't it ? No AFM( MAF)

[Sardonicus]

ClassicChimaera said:

Alpha N
Ecu only using TPS and RPM no use of MAF to determine fuel map. Usually down to the mapper to set timing as part of building a map. Does that sound close?
Any engine changes require re map as it's not adaptive.
This based on BMW info I just skated through!
This is what I have isn't it ? No AFM( MAF)

You may still have MAP Alun with most of these ECU's you can use both "speed density"> (Vacuum) or Alpha N and yes adaptive to a degree if your running closed loop fuel trimming etc but yes mods equals remap, I was running MAP before the engine refurb but it was not having it with the new spec vacuum at low speed is piss poor so suffered stalling and very inconstant AFR's at low speed which was to be expected (you need a clean/smooth vacuum signal) went Alpha N found the motor much more responsive if I am honest

[ClassicChimaera]

I don't think I've got a Map sensor but I don't look to hard!
I really should have asked Jason to go around it and confirm these details but you never seem to have enough time to ask all your questions or I forget!
I'm back at Powers next week and I'll do some homework this time.
I'm getting there slowly

I can now see why Turbo you use both MAF and MAP

[SILICONEKID345HP]

Does this look ok ?

[Incognegro]

ClassicChimaera said:

I really like the layout of your screen, the most important thing is to be able to memorise and find the dial you want fast.. that looks easy the remember.
Excellent stuff.

Thanks, I've further customised as you get 6 screens. I'll show when I get car back and it's running (drop off to Power tomorrow weather depending)

Main screen will show revs/speed as an accurate main with temps on its left and current bhp & lbsft on the right. It's great you can then just have on/off indicators which will show running of fans

Another screen will replicate similar data I saw a Nissan GT-R showed and I've further customised others with one dedicated to g forces and one to acceleration (I even did one for emissions). The best bit is you can print logged data and for example see when I did 150mph there was so much load with temp at? And pressure? Etc

Sorry for the vagueness it will get better

[Incognegro]

Matthew Poxon said:

You are too kind sir, mine is looking a bit battered now after living outside many years. Respray may be on the cards in 2217 when if I finally get a garage.

New Vanquish certainly looks very nice indeed. I do love the newer style Astons (DB9, V8V onwards) I think they really nailed the styling retaining the classic features but still looking modern. You have to admit though most of the later TVRs and particularly the cerebra just look stunning and have not aged one bit. Owning a cerebra when it first come out must have been like owning a spaceship! The long and low stance with those huge doors looks so good.

The speed six cars running the new MBE do sound a bit smoother from what I remember, but I think the main improvement will be drivability which is something you can't really measure or define but you know when you drive it.

Looking forward to hopefully catching up next year sir

The way my back is feeling those long doors and low stance are scaring me to think about trying to get in yet alone get out.

Deffo be good to catch up this year mate. Hopefully I'll be able to get a couple of trackdays in too. Drivability sounds nice and the response I hear does get more crisp which I'm excited to feel. The Astons have done well like you say from the DB9 but it's only what I just saw that I really can say turned my head.

Catch you soon mate... perhaps we can chat through Harry's lap timer... lol

[ClassicChimaera]

Incognegro said:

Thanks, I've further customised as you get 6 screens. I'll show when I get car back and it's running (drop off to Power tomorrow weather depending)

Main screen will show revs/speed as an accurate main with temps on its left and current bhp & lbsft on the right. It's great you can then just have on/off indicators which will show running of fans

Another screen will replicate similar data I saw a Nissan GT-R showed and I've further customised others with one dedicated to g forces and one to acceleration (I even did one for emissions). The best bit is you can print logged data and for example see when I did 150mph there was so much load with temp at? And pressure? Etc

Sorry for the vagueness it will get better

As we know these Tvr's can be fragile so having as much information available to monitor its internals must be money well spent.

I grew up watching Star trec but I never thought I'd be in it.
Exciting developments.

I'm at Powers next Wednesday so I'll look out for your car

[Richard 858]

ClassicChimaera said:

I'm at Powers next Wednesday so I'll look out for your car

Watch out Alun, don't burn your finger again

[ClassicChimaera]

Richard 858 said:

Watch out Alun, don't burn your finger again

what a knob !

I can't get enough space in my mates garage to do the fuel lines and I'm not doing them outside so treated myself to letting Powers struggle with them instead.

I like to let them check it over every now and then
Might change gear and dif oil for the hell of it too.
I'm close to selling the dog for new shocks,,,,,, again!
Competition shocks are great but I'm not needing them really.
I might go Billie and see how they are, if I like them I might sell my 2 sets of adjustables which are like new. Probably get them checked over etc first.

[Richard 858]

I've got a set of original rear billies c/w oe progressive springs (old but quite serviceable) if you want to try them mate.

[ClassicChimaera]

Richard 858 said:

I've got a set of original rear billies c/w oe progressive springs (old but quite serviceable) if you want to try them mate.

Having just put some spongie tyre's on I'm still in two minds yet Richard. Thanks I'll go find my old billie fronts and have a think. My rears were shot but I remember the fronts felt ok. Hmm.

I do like the big bush on the New Bilstein front shocks arrangement and the more I feel it the more I agree for road work that big bush might aid absorbance better than a rose joint.

[Incognegro]

As I say guys weather needs to be nice for me to take her to power tomorrow. Just remembered another important fact in these conditions... I'm running federal 595rsr track tyres on the rear. I know a hedge doesn't want my cerbera so I don't feel like treating one.

[ClassicChimaera]

Incognegro said:

As I say guys weather needs to be nice for me to take her to power tomorrow. Just remembered another important fact in these conditions... I'm running federal 595rsr track tyres on the rear. I know a hedge doesn't want my cerbera so I don't feel like treating one.

Ohhh noooo.
Not a good tyre in the rain let alone bordering on ice.

I've got what look like motorbike knobblies on my car now Rainsports, but if it's even vaguely wet with all this salt it's a big no no so I don't blame you.
Really looking forward to seeing more of your computer skills so the hedge can wait