Feeling pretty good today.
Discussion
My chim has always run well, reasonably fast, reliable and taken T/D's in it's stride running at least as quick as standard 5.0's.
I took it to Surrey Rolling Road in December prior to further work and it produced a healthy 271 HP and 300 torques at the fly, (can't lay my hands on the graph at the mo).
During January, I replaced the heads with V8 Developments stage 4 heads, ported and polished inlet and my trumpet base bored out to 47mm, blended and their shortened trumpets fitted.
I kept my 30K miles Typhoon cam as I couldn't fit a hairier cam due to flat top pistons fitted.
Got it all together, ironed out an inlet manifold oil leak at the rubber seal, twice
and a few other problems last Wednesday at 10pm, just befor a T/D at Brands the following day!
The chim went really well and I new it was faster, (and it didn't fall apart!).
I booked it back in to Surrey Rolling Road today and I am so
at the results.
Acceleration from standstill with the triple 8's is fantastic and the pull from 80mph in top is sooo quick.
All I need is a bit of sunshine and some empty roads,...... bring it on!
Don't pay any attention to the red lines as they are a previous run with a different Y piece with a blocked cat!
At the fly showing fueling.
At the wheels.
Showing torque.
I took it to Surrey Rolling Road in December prior to further work and it produced a healthy 271 HP and 300 torques at the fly, (can't lay my hands on the graph at the mo).
During January, I replaced the heads with V8 Developments stage 4 heads, ported and polished inlet and my trumpet base bored out to 47mm, blended and their shortened trumpets fitted.
I kept my 30K miles Typhoon cam as I couldn't fit a hairier cam due to flat top pistons fitted.
Got it all together, ironed out an inlet manifold oil leak at the rubber seal, twice
and a few other problems last Wednesday at 10pm, just befor a T/D at Brands the following day!The chim went really well and I new it was faster, (and it didn't fall apart!).
I booked it back in to Surrey Rolling Road today and I am so
at the results.Acceleration from standstill with the triple 8's is fantastic and the pull from 80mph in top is sooo quick.
All I need is a bit of sunshine and some empty roads,...... bring it on!
Don't pay any attention to the red lines as they are a previous run with a different Y piece with a blocked cat!
At the fly showing fueling.
At the wheels.
Showing torque.
.haircutmike said:
I booked it back in to Surrey Rolling Road today and I am so at the results.
It's a pity we missed each other - I was there at about noon. Very pleased with my result too - having been told my cam was worn, my 450 (standard as far as I know) gave a healthy 276 bhp at the fly. at the results.Dr Mike Oxgreen said:
It's a pity we missed each other - I was there at about noon. Very pleased with my result too - having been told my cam was worn, my 450 (standard as far as I know) gave a healthy 276 bhp at the fly.
I would doubt your's was worn, what evidence have you, that is about what mine had before the mods?Well, I now have pretty good evidence that it isn't worn! Charlie's first words when he got out of the car were "nothing wrong with that cam!"
I had it serviced a week ago, and was told they thought it sounded a bit clattery when cold, and it did have a very light tappety sound (which has now disappeared) - and they suggested the cam was probably worn.
Just goes to show: Don't shell out for a new cam without doing a dyno run first. Even highly respected TVR specialists occasionally get their diagnosis wrong!
I had it serviced a week ago, and was told they thought it sounded a bit clattery when cold, and it did have a very light tappety sound (which has now disappeared) - and they suggested the cam was probably worn.
Just goes to show: Don't shell out for a new cam without doing a dyno run first. Even highly respected TVR specialists occasionally get their diagnosis wrong!
Wow Peter, that's very impressive ! you must be well chuffed.
Mine is booked in at Torque of The Devil (Uxbridge) for Friday, but just been told they may have folded
anybody in the know about this ?
So may try Subaru4you in Newbury which is another Dyno Dynamics RR so shoild be reasonable for comparisons. If not off to Surrey RR I guess.
Roy.
Mine is booked in at Torque of The Devil (Uxbridge) for Friday, but just been told they may have folded
anybody in the know about this ? So may try Subaru4you in Newbury which is another Dyno Dynamics RR so shoild be reasonable for comparisons. If not off to Surrey RR I guess.
Roy.
roysum said:
Meant to say Peter, ya revs are dropping off around 5.5k. can't remember if you have MA chip ? Following the line to around 6.2k (which is where mine gets to now) you might have gone over the 350 mark !
Roy
Roy, I'm running "nuffin"!Roy
I believe it is a standard 4.3 ecu that was repaired by Austecs when it ran a fault.
Also running the green diode with lambdas disconnected so no niceties!
roysum said:
Meant to say Peter, ya revs are dropping off around 5.5k. can't remember if you have MA chip ? Following the line to around 6.2k (which is where mine gets to now) you might have gone over the 350 mark !
Roy
Im going to lend him my MA chip if/when it ever arrives, that's best guess for a modded 4.6 aswell and do a another rolling road graphRoy
At the moment my Chim is faster than his..........
So fast ive practically been evicted from my house because of my Chim
EDIT - Just realised im on the missus account, Alex here :-)
Edited by Sabz86 on Sunday 27th February 16:03
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