V8 Coops

Hi everyone long time no speak lol,
Time i did an update me thinks,

well in 2015 i finally killed the v8 in the Capri too much boost as you do and cracked a piston
looked at going the forged route but needed to sell a kidney for forged pistons as soon as you mention Rover V8,
So the car sat in the garage for 9months with no bonnet or engine,
While on holiday in the USA in the October of 2015 i had an email from a new RV8 parts company (v8 Performance Parts) that wanted to help me with a new engine for the car,
thought it was a wind up at first but after a few emails they asked to see me after my return back to the UK,
after a few lengthy discussions we agreed on a fully forged stroked 4.8ltr Rover V8,

The spec as follows:
Rover 4.6 crank offset ground to give 3.4" stroke and the journals reduced to 2" diameter,
lightweight Lunati 6" Chevy H beam rods, and ARP rod bolts,
Diamond forged slipper race pistons with fully floating pins,
https://passionford.com/forum/attach...1&d=1523638275

Crower 50305 mechanical race cam,
Chevy crower solid lifters,
Kent Vernier Duplex Timing set,
https://passionford.com/forum/attach...1&d=1523638626

TA Performance cylinder heads from the USA,
TA Performance Roller Rockers,
TA Performance Hollow pushrods (oil feed for top end)
https://passionford.com/forum/attach...1&d=1523638736

Original efi manifold system from the old engine but opened out to 45mm ports
45mm bore short alloy trumpet base,
https://passionford.com/forum/attach...1&d=1523638847

Mcleod twin RST race clutch adapted to fit the rover v8,
https://passionford.com/forum/attach...1&d=1523640325
https://passionford.com/forum/attach...1&d=1523639126

Rotrex supercharger again but with reworked bracketry
https://passionford.com/forum/attach...1&d=1523639193
https://passionford.com/forum/attach...1&d=1523639420

Easter 2017 the engine went back in the car
https://passionford.com/forum/attach...1&d=1523639622
https://passionford.com/forum/attach...1&d=1523639659

And how it looks now:
https://passionford.com/forum/attach...1&d=1523639726

July 2017 we headed up to Brosley to Bailey Performance so Dale could set her up,
had a day of issues with the cable clutch keep jumping out and in the end snapping,
before we had all the hassles this is where things got interesting,
the old 4.6 supercharged engine made 404rwhp at 14psi of boost,
we were running this new one quite soft on boost due to an engine which had only done 200 miles lol and we got 380rwhp at only 3psi of boost,
we are now back up to 10psi of boost and 485bhp BUT the supercharger can't feed the engine quick enough.
the engine revs round to 7500rpm and keeps pulling while on the dyno Dale was amazed how well it pulls and wants to keep going lol,


SOOOOOOO,
where do we go from here i hear you ask,
The cars pedal box has now been converted to a fully hydraulic clutch set up, and so far nearly a year on no more clutch issues,
And after a chat to Dale, Allan from V8 performance Parts and Procharger in the USA we now have a D1SC procharger supercharger going on this year as soon as the bracketry is finished and we are going to see if we can push the engine to 20psi and near on 600bhp, not bad for a little 190 bhp rover v8

Caddyshack

Nice engine. I would have thought a crate LS engine would have been far cheaper to get the same power?

V8 Coops

yup but thats the reason i have not done that, every one says fit a chevy etc,
BUT we wanted to break the norm and not follow every one else and be unique and be different, plus the car was already set up to use the rover v8

costina

iTrader: (1)

Yo Tony looking good mate.

just don't ask about mine lol..

V8 Coops

Hi Paul.
must get up to see you guys some when when i get 5mins free lol,
Whats happened to yours???

costina

iTrader: (1)

Nothing just been busy with other stuff.
one day it will be done lol.

Yeah you need to come down and show them how it's done 😀😉

V8 Coops

hehe,
yeah i will before i break it again

V8 Coops

And some pictures of the new bigger procharger supercharger build in progress

https://passionford.com/forum/attach...1&d=1523647911

https://passionford.com/forum/attach...1&d=1523648003

https://passionford.com/forum/attach...1&d=1523647951

costina

iTrader: (1)

Nice. Will your back axle handle it?

Are you still on the T5 box.?

V8 Coops

box is an uprated rover R380,
back axle is an Andy Robinson built 8.8 mustang

costina

iTrader: (1)

Just a thought could you relocate air filter due to heat soak from the engine?

gcfcos

What a cracking looking car, amazing work going on there. I've never heard of so much power out of a rover v8

costina

iTrader: (1)

Its one of my fav cars as I have always had a soft spot for a capri.

V8 Coops

filter will go through inner wing with the new charger install mate

costina

iTrader: (1)

Cool you have PM