half bridge or full bridge

[mx1311]

not always

[karl_tate]

so whats the reason for the strip down??

[lee mills]

part of a process to diagnose loss of power:(

[karl_tate]

shame, must be quite a significant loss in power though??

[lee mills]

needed a complete remap after uprating fuel lines etc. pointless mapping past 1 bar when am already about 40 whp down:2Rolleyes

[gear1275]

Fair point lee, it probably would be a bit ott for stock twins! but if it would run with them for a period with a view to going single at a later date then il probably go for it, if tim gives me the go ahead. am i right in saying that the first turbo comes on boost at around 1500rpm on stock twins? if so, with a half bridge idling at 1800-2000rpm would i be sat on boost at idle?

[m1tch]

I know if you plugged in a stock FC turbo on a heavily ported FC engine it would be on boost on idle

[lee mills]

Fair point lee, it probably would be a bit ott for stock twins! but if it would run with them for a period with a view to going single at a later date then il probably go for it, if tim gives me the go ahead. am i right in saying that the first turbo comes on boost at around 1500rpm on stock twins? if so, with a half bridge idling at 1800-2000rpm would i be sat on boost at idle?

To be honest mate i dont know speak to Tim he will explain the best way to go.
From what ive heard i dont think your stock turbos would last very long with a bridge

[karl_tate]

bridge is a no no with stock twins.

if your down on power after the fuel changes surely its something to do with what has been fitted?? i would try if you can, and revert back to how it was before you strip the engine down and see if your still down on power??

[lee mills]

bridge is a no no with stock twins.
 
if your down on power after the fuel changes surely its something to do with what has been fitted?? i would try if you can, and revert back to how it was before you strip the engine down and see if your still down on power??

Unfortunately i no longer have the sard fuel rail otherwise i would try this if nothing else just to rule it out

[lee mills]

Interesting development after draining the car of all the race fuel that was in it and then filling bak up with v power she is now making power again.This was diagnosed after chris impey and gary gooding reported that after using the same race fuel they were also down on power. so the car is going to have its final map on saturday and hopefully if all goes well will pick her up next week.
 
For any one interested the race fuel in question was sunoco maxnos. it would appear for some reason that our cars dont like this fuel.
 
Lee

[lee mills]

The only down side is no Brap Brap but to be honest will just be glad to get the car back:D

[BlitzBoy]

excellant news, thanks for the tip I was going to switch to Maxnos from VP c16 as it was cheaper.
Just shows you why c16 is more expensive, you pay your money you get quality

[lee mills]

Where do you get your vp fuel from Mark?

[BlitzBoy]

I get it from the Motorshack guys, number is 01926 633379