60 replies to this topic

[Aerodynamic]

Really nice power output.

How much extra bhp did you get from the mapping?

 

Br, Per

[vocky]

 

How much extra bhp did you get from the mapping?

 

 

 

I really have no idea, this was the first time the 2.5 engine has been mapped.

[vocky]

 

What sort of power/torque would this conversion net with the webcon gear?

 

 

The Webcon throttle bodies kit is just a starter pack, you need to consider what bhp you want and then source the parts required. To get past 200 requires the balancer delete and 11:1 CR, some cams, a ported head and a decent 4-1 manifold and 2.5" system.

 

Stage 1 cams are usually around 200-210 bhp, stage 2 cams 210-230 bhp, stage 3 cams 220 - 240bhp. After that CatCams do some nice cams, I run their 287 versions.  

[Captain Vimes]

Great result. Must be one of the nicest vx power trains anywhere! It must be very well built to be able to rev a long stroke engine well above 7k rpm. What's the mean piston speed at max rpm?

[TheHood]

MPS will be 24.5m/s @7500RPM. VERY nice work Vocky.

Edited by TheHood, 18 February 2016 - 08:14 PM.

[Aerodynamic]

 You dont know how much bhp you gained between first and last pull? How much extra bhp did you get from the mapping?    

  I really have no idea, this was the first time the 2.5 engine has been mapped.

[vocky]

It made 255 bhp at 7100 on the first run, now it makes the same at 6250 rpm

[Sticky]

 What sort of power/torque would this conversion net with the webcon gear?  

  The Webcon throttle bodies kit is just a starter pack, you need to consider what bhp you want and then source the parts required. To get past 200 requires the balancer delete and 11:1 CR, some cams, a ported head and a decent 4-1 manifold and 2.5" system.   Stage 1 cams are usually around 200-210 bhp, stage 2 cams 210-230 bhp, stage 3 cams 220 - 240bhp. After that CatCams do some nice cams, I run their 287 versions.  

Like these cams? http://www.vx220.org...e-schrick-cams/

[Ali87]

What a beast, you should bring it on the Hoon!

[ChrisS1]

Any videos of it in action or have you taken it back apart already to continue fettling?

[Rosssco]

It must be very well built to be able to rev a long stroke engine well above 7k rpm. What's the mean piston speed at max rpm?

 

Vocky's 2.5 engine with slightly larger bore will have a bore / stroke ratio will have pretty much the same as a standard 2.2 engine. Plus he has a lightened, balanced crank and various under drive ancillaries like the water pump and alternator..

My basic 2.4 rev's as easily / keenly as a 2.2 for example, again because it has a very similar bore / stroke ratio.

[Exmantaa]

It's more the rod-length vs.crank-stroke ratio that determines the willingness at high rpms. (Angled rod that drives the piston into the wall, therefore the 2.2 has the longest rod of the Ecotec family...)

 

 

[vocky]

Any videos of it in action or have you taken it back apart already to continue fettling?

 

it needs a new crank sensor bracket and it also needs cleaning, so it's sat back in the garage until I can find some time to look at it.

[vocky]

I have made a nice new crank sensor bracket from a piece of 10mm billet 6061 aluminium

[Bargi]

the 2.2 has the longest rod of the Ecotec family...

Oh err missus

[Jimmy-Boy]

Will this be on track in the year? would like to come see!

[MartinS]

My 2.0 Saab engine has been no hassle to you at all.

 

Martin S

 

[vocky]

I have made a nice new crank sensor bracket from a piece of 10mm billet 6061 aluminium

 

which works perfectly and I now have 7650rpm to play with

 

Mapping always seems to make my vx quieter

 

Damn cold out there today, had to pull into a layby and put the soft top on, it quickly got rather toasty with my tweaked heater kicking out loads of heat   

[Nev]

 

I have made a nice new crank sensor bracket from a piece of 10mm billet 6061 aluminium

 

which works perfectly and I now have 7650rpm to play with

 

Mapping always seems to make my vx quieter

 

Damn cold out there today, had to pull into a layby and put the soft top on, it quickly got rather toasty with my tweaked heater kicking out loads of heat 

 

 

Woooaaah, are you saying you've been driving it ?!

 

[vocky]

It has done at least 400 miles in the last year Mr Nev

 

Well okay 60 miles were on the rolling road and it must have been at least a 40 mile round trip there and back, so 100 miles in one day