Johns cerbera rebuild and upgrade

Johns cerbera rebuild and upgrade

Author
Discussion

scotty_d

6,795 posts

193 months

Friday 7th February 2014
quotequote all
SILICONEKID346HP said:
p

Don`t know why you did not go LS in the Chim .
Because he is a man, chimps are for girls like porkers wink

SILICONEKID346HP

14,997 posts

230 months

Friday 7th February 2014
quotequote all
scotty_d said:
Because he is a man, chimps are for girls like porkers wink
I` m not asking you the question ! You don`t qualify because you are a jock laugh

scotty_d

6,795 posts

193 months

Friday 7th February 2014
quotequote all
SILICONEKID346HP said:
scotty_d said:
Because he is a man, chimps are for girls like porkers wink
I` m not asking you the question ! You don`t qualify because you are a jock laugh
But you are the joke, and a bad one at that smile

Alexdaredevils

5,697 posts

178 months

Friday 7th February 2014
quotequote all
Handbags down lads

scotty_d

6,795 posts

193 months

Friday 7th February 2014
quotequote all
Alexdaredevils said:
Handbags down lads
Its only banter

Mags

1,131 posts

278 months

Saturday 8th February 2014
quotequote all
So what happened to this build then?
I hope the OP didn't decide to not post updates because of the strong feelings towards keeping the AJP?

SILICONEKID346HP

14,997 posts

230 months

Saturday 8th February 2014
quotequote all
I`m sure it`s on a trailer today on the way to Snetterton today ,The John bloke re builds cars in weeks ,don`t know how he does it .

scotty_d

6,795 posts

193 months

Saturday 8th February 2014
quotequote all
Mags said:
So what happened to this build then?
I hope the OP didn't decide to not post updates because of the strong feelings towards keeping the AJP?
I hope not frown

Mr Cerbera

5,031 posts

229 months

Sunday 9th February 2014
quotequote all
Were those Carillo ConRods ??
scratchchin

Engineer1949

Original Poster:

1,423 posts

143 months

Sunday 9th February 2014
quotequote all
no not started yet had to equip a new workshop which involved knocking walls down etc. but took the car to the snetterton track day saturday got some good footage so buyers of the engine etc. can see it performs well, i will be starting slowly this very week got a maroon chim to finish as well that will then be up for sale, funds for the cerb.

john

Engineer1949

Original Poster:

1,423 posts

143 months

Sunday 9th February 2014
quotequote all
no not started yet had to equip a new workshop which involved knocking walls down etc. but took the car to the snetterton track day saturday got some good footage so buyers of the engine etc. can see it performs well, i will be starting slowly this very week got a maroon chim to finish as well that will then be up for sale, funds for the cerb.

john

peaktorque

1,807 posts

210 months

Sunday 9th February 2014
quotequote all
Engineer1949 said:
no not started yet had to equip a new workshop which involved knocking walls down etc. but took the car to the snetterton track day saturday got some good footage so buyers of the engine etc. can see it performs well, i will be starting slowly this very week got a maroon chim to finish as well that will then be up for sale, funds for the cerb.

john
Did you find the AJP underpowered?

Alexdaredevils

5,697 posts

178 months

Sunday 9th February 2014
quotequote all
peaktorque said:
Did you find the AJP underpowered?
From what I saw most the Chims were pulling away from him on the straights, but he was up against a V8D 5.5 a 5.0 and a SC 4.0

peaktorque

1,807 posts

210 months

Sunday 9th February 2014
quotequote all
Alexdaredevils said:
From what I saw most the Chims were pulling away from him on the straights, but he was up against a V8D 5.5 a 5.0 and a SC 4.0
No replacement for displacement then?

gruffalo

7,509 posts

225 months

Sunday 9th February 2014
quotequote all
Don't forget driver knowledge of the car, first time he had driven it. How far was he pushing an engine he wanted to sell?

An AJP Is a faster engine than an RV8, the torque curve is so much wider and the top end so much higher, a 4.7 AJP will be pushing 475 BHP with 420+ torques, an RV8 of 5.5 litres does not match that.

Alexdaredevils

5,697 posts

178 months

Monday 10th February 2014
quotequote all
I'm not sure I see you're point

QBee

20,904 posts

143 months

Monday 10th February 2014
quotequote all
In John's defence I think he was simply enjoying himself, and was on road tyres. Good to see him there in the Cerb, giving us Chim owners a chance to be dominant for once.....biggrin

NickOrangeTVR

649 posts

138 months

Monday 10th February 2014
quotequote all
QBee said:
In John's defence I think he was simply enjoying himself, and was on road tyres. Good to see him there in the Cerb, giving us Chim owners a chance to be dominant for once.....biggrin
Indeed.

He was on the straights definitely giving it 'beans' - I also drove it several times and I would say (given my previous Cerb ownership) that it is on par with most 4.2's - TVR marketing say 360BHP but in reality I suspect they are mostly in the 330-340BHP mark, and as Alex says most of the Chim's were all 'special' - I had a race down the back straight with him and pull past relatively easily (and he confirmed he was pushing hard 6-7k RPM) - I think key difference is that I am kicking out probably 80+ more lbs of torque.

900T-R

20,404 posts

256 months

Monday 10th February 2014
quotequote all
That, and the 150-200 kg of weight difference I think... making your average 350 bhp Cerb (both 4.2 and un-remapped 4.5 with standard induction) about equal with a 300-320 Chim in terms of power/weight.

Actually on track there's often little to separate the 250-275 hp non-4.0 Chims/Griffs and Speed 6'es with a nominal extra 100 bhp because they tend to be in the same gear accelerating out of bends and the stragiht that follows isn't long enough to get above the 5.5-6K rpm range where the RV8s need an upshift and the power curve of the S6'es keeps on building towards their 7,200 or so maximum. Can't remember being seriously outgunned back when my car was making only 260 or 275 hp, save for 120+ on the Autobahn where the newer cars will start to head for the horizon pretty sharpish.

Engineer1949

Original Poster:

1,423 posts

143 months

Monday 10th February 2014
quotequote all
well here we go, made a small start today after completing the workshop still the new lathe and mill to install but weather conditions not allowing me to collect them, but bonnet off and engine exposed few bits undone but start tomorrow in earnest.


john