OK guys, I thought I'd better update you on the current situation of my GTi.
As many of you may know, the engine I have was pretty much the exact same engine that was in my Nissan Micra aka Little Bandit. After the crash, I swapped the drivetrain into a Phase 1 GTi previously owned by an old member on the forum.
All was well until a number of Sunday's ago...
OK, here's the story...
Although my old GT3071R hybrid served me well, it did create a number of problems when it got swapped for the original GT28RS.
1. It initially had serious boost creep issues.
2. After extensive modifications to the turbine housing and wastegate assy', thus curing the boost creep issues, it became more difficult to actually make any boost...a 17 psi actuator would only net me 13 psi.
3. After making 452 WHP @ 18 psi after the installation of the 76mm comp' wheel, it only lasted another 209 miles and then died, fortunately staying in one piece.
After investigation, a crack was found stretching all the way from the inside of the wastegate assy' around to the turbine wheel, supposedly caused by excess heat.
That's what happens when you push out in excess of 500 crank HP out of a turbo that's only good for a maximum of 500!
So, after a long and tiring investigation of what to do next, I decided to go with a new GT30R hybrid. With a number of modifications inside, it has a flow rating of about 600 crank HP.
Only downside is I will need to run an external wastegate and swap the T25 inlet flange on my manifold for a T3 flange.
Better get the grinder and welder out!
Cheers
Dave
P.S. Why do these things always happen when you least want them to, i.e. 1 week before Banzai@ Crail?
As many of you may know, the engine I have was pretty much the exact same engine that was in my Nissan Micra aka Little Bandit. After the crash, I swapped the drivetrain into a Phase 1 GTi previously owned by an old member on the forum.
All was well until a number of Sunday's ago...
OK, here's the story...
Although my old GT3071R hybrid served me well, it did create a number of problems when it got swapped for the original GT28RS.
1. It initially had serious boost creep issues.
2. After extensive modifications to the turbine housing and wastegate assy', thus curing the boost creep issues, it became more difficult to actually make any boost...a 17 psi actuator would only net me 13 psi.
3. After making 452 WHP @ 18 psi after the installation of the 76mm comp' wheel, it only lasted another 209 miles and then died, fortunately staying in one piece.
After investigation, a crack was found stretching all the way from the inside of the wastegate assy' around to the turbine wheel, supposedly caused by excess heat.
That's what happens when you push out in excess of 500 crank HP out of a turbo that's only good for a maximum of 500!
So, after a long and tiring investigation of what to do next, I decided to go with a new GT30R hybrid. With a number of modifications inside, it has a flow rating of about 600 crank HP.
Only downside is I will need to run an external wastegate and swap the T25 inlet flange on my manifold for a T3 flange.
Better get the grinder and welder out!
Cheers
Dave
P.S. Why do these things always happen when you least want them to, i.e. 1 week before Banzai@ Crail?
