287.6 BHP and 281 ft lbs woo hoo

[gmw9666]

Well a few personal bits n bobs yesterday meaning I didn't get on the rolling road until today at Shropshire Automotive Services

Great weather, arrived at midday



Then it was time to strap the old girl down and see if we've got any issues



Mid range issues highlighted and after some digging and root cause analysis the injectors were identified as potential issues so time for a clean which means off with the plenum




Let the cleaning commence




Omg how much crud came out of these




Screw the lot back together cleaning and replacing any needy parts



Ok let's see what see'll do after all the tweaks :-)

Ear defenders needed to watch this!!!!!



And what did we get, 287.6 BHP at 5794 RPM with 281.3 ft lb at 4811 RPM.........very pleased with that and the drive home tonight was a real hoot

She pulls like a proper monster

Edited by gmw9666 on Monday 22 September 12:12

[gmw9666]

Hugely impressed with the work MA did with Mike at SAS today

@wyn, indeed it is standard, so potential there if I needed / wanted

To say she did 293bhp back in 1993 after the rebuild dropping just a few ponies is not bad at all

The set up and throttle response now is savage it really is

@mark, may not have popped or banged in that video but on the road its like a gattling gun lol

All in all money well spent to fix the known issues that came with the car

One happy chappy :-)

[gmw9666]

mrzigazaga said:

Actually thats very good power...What was the spec of the engine..Big valves?...Ported/Flowed heads?...Out of interest what do the 450SE push out..270-280bhp?..Thats a healthy amount of torque as well...Its impressive.....Ziga

Engine Spec for you Mark, I didn't take note of what the fuel mix was or the timing advance so need to get that from MA for my records.

4441cc
HRC Conrods
234 Cam
Jaguar AFM
Jaguar Bosch Injectors
Big Valve - Ported and Polished Head
Standard Inlet Manifold / 38mm
JE 80mm Crank
JE 4.5 Pistons
Bore 93.5
Stroke 80mm
Standard timing chain, cam followers, push rods
Bronze Valve guides & Dual Valve springs
8.5 Head Gasket / 10.619 CR
Mark Adams rebuild ECU / AFM
K&N Air filter
Shell V Power fuel

[gmw9666]

Jack Valiant said:

These are some serious numbers nice one The 500 Gredge is doing 297 with 312 Ftlbs with a kent 216 cam and red top injectors.... just wondering which cam you went for?

Chris

she's got a 234

[gmw9666]

Number 7 said:

Great result Glen. Looks like the trumpets are shortened, or is it an illusion? With BV heads and 4.5l you should definitely get some benefit from 45mm trumpets and a blended inlet manifold. You don't say whether the throttle body is standard (65mm IIRC) but if not, that also worth doing - typically go up to a 73mm throttle disc. All it takes is money!!

Howdy Paul

Good eyes, those trumpets are indeed shortened and another good spot on the throttle. It's the full fat NCK bored out version :-)

[gmw9666]

ajp55 said:

Nice one Glen. Hope to put mine on the rollers at Neil's at the w/e I'll be well chuffed if I get any where near that!

See you Saturday Ade, will come and cheer you on :-)

[gmw9666]

MPoxon said:

Fantastic result Glen, that is only 13BHP off my Griff 500, I bet she flies!!! Mark Adams is a guru when it comes to getting the best out of these cars.

Stunning wedge she looks and sounds great.

Cheers Matt, it was your blog article that pointed me in Marks direction, been well pleased so thank you

[gmw9666]

just clearing some photo's off my phone and didn't realize I had this video from my RR session

Personally think this actually sounds better that the other one I posted

Well a bit of mid week aural cheer for us all....enjoy :-)

[gmw9666]

carob said:

Back end doesn't look right to me, could do with some new shocks and springs on there....lol

Seriously sounds the dogs that mind you.

Rob

Lol.....I'm watching