I understand that Rohan, but my point was that at 2100revs Erics engine was only making 38hp and 94 Ft/lb as opposed to 450ft/lb and 217hp at 2500 with the other newly rebuilt engine I posted up.Rohan Christmas wrote:The motor is just running in. They haven't been doing full power runs.
Rebuild gets underway at last.....
Re: Rebuild gets underway at last.....
Manual Int&Rag-Top
"Monkey Man"sig Registrar
"Monkey Man"sig Registrar
Re: Rebuild gets underway at last.....
In that video the engine was only under light load. The carburettor blades would hardly have been open. Once the engine has been fully run in and after the oil has been changed a full power run can be done with full throttle.Grant wrote:I understand that Rohan, but my point was that at 2100revs Erics engine was only making 38hp and 94 Ft/lb as opposed to 450ft/lb and 217hp at 2500 with the other newly rebuilt engine I posted up.Rohan Christmas wrote:The motor is just running in. They haven't been doing full power runs.
1964 Jensen CV-8 II
- Chris_R
- JOC General Secretary
- Posts: 6583
- Joined: Sun Feb 10, 2008 9:19 am
- Location: South West London
Re: Rebuild gets underway at last.....
Oil pressure seems excessively high.
Chris
JOC Member 6116
--------------------------------------------------
JOC Member 6116
--------------------------------------------------
Re: Rebuild gets underway at last.....
It's still warming up though.Chris_R wrote:Oil pressure seems excessively high.
1964 Jensen CV-8 II
Re: Rebuild gets underway at last.....
Guys,
I don't have an answer to the epic torque & power figures, but as Rohan pointed out it had just been started so under no load at all. The oil pressure was that high because we hadn't adjusted it (it's an externally adjustable unit), and were also trying to get the recalcitrant lifter to co-operate.
I don't have an answer to the epic torque & power figures, but as Rohan pointed out it had just been started so under no load at all. The oil pressure was that high because we hadn't adjusted it (it's an externally adjustable unit), and were also trying to get the recalcitrant lifter to co-operate.
1972 Interceptor MkIII (128/4886)
Re: Rebuild gets underway at last.....
Well, the lifter was persuaded to work properly after an hour of alternately applying oil and high pressure air (The piston/plunger had a tight spot at the bottom of its travel that was causing it to jam) so the engine was dyno tested properly yesterday. I couldn't be there to see it in person unfortunately, but I'm told the torque peaked at 3300rpm, and was tailing off slightly by 3700rpm where it was reading 571ftlbs! I'll get the full printout when I collect the engine next week.
The oil pressure is now set at 80psi hot.
The oil pressure is now set at 80psi hot.
1972 Interceptor MkIII (128/4886)
- Chris_R
- JOC General Secretary
- Posts: 6583
- Joined: Sun Feb 10, 2008 9:19 am
- Location: South West London
Re: Rebuild gets underway at last.....
Oil pressure seems excessively high. I would have thought around 50psi would be more appropriate.Jorrocks wrote:The oil pressure is now set at 80psi hot.
Chris
JOC Member 6116
--------------------------------------------------
JOC Member 6116
--------------------------------------------------
Re: Rebuild gets underway at last.....
The dyno printout:
As you can see, the graph is only reading from a point where the torque has already peaked (Max torque was between 3000-3300). This is because the dyno couldn’t hold steady to get a reading as it was unable to move enough water due to the low engine revs (I hope I understood that correctly, but I think the volume of water being pulled through the dyno is governed by the revs of the engine)
As you can see, the graph is only reading from a point where the torque has already peaked (Max torque was between 3000-3300). This is because the dyno couldn’t hold steady to get a reading as it was unable to move enough water due to the low engine revs (I hope I understood that correctly, but I think the volume of water being pulled through the dyno is governed by the revs of the engine)
1972 Interceptor MkIII (128/4886)
Re: Rebuild gets underway at last.....
The engine was built by Rob Loaring and Nick Davies at ICE AutomotiveGrant wrote:may I ask who's doing the work? ..
http://iceautomotive.co.uk/" onclick="window.open(this.href);return false;
1972 Interceptor MkIII (128/4886)
-
- Posts: 2979
- Joined: Mon Dec 11, 2006 11:08 pm
- Location: CREWE
Re: Rebuild gets underway at last.....
Good engine people, I know rob has always done a lot of r&d with cylinder heads, I would prefer 80psi than 50
WATTS RACING TRANSMISSIONS, 07974 088375,
CLOBBER THE COMPETITION
CLOBBER THE COMPETITION
Re: Rebuild gets underway at last.....
What inlet manifold and carburettor did you use?
1964 Jensen CV-8 II
Re: Rebuild gets underway at last.....
The manifold’s an Edelbrock Performer dual plane (Not the RPM, as apparently it causes bonnet clearance issues).
The carb on the dyno was I think a 650cfm, but I will be using FiTech EFI which equates to 850cfm.
The carb on the dyno was I think a 650cfm, but I will be using FiTech EFI which equates to 850cfm.
1972 Interceptor MkIII (128/4886)
Re: Rebuild gets underway at last.....
RPM fits but you need a drop type air cleaner.
No choice 12 years ago when i fitted the ProFlow. Julian
No choice 12 years ago when i fitted the ProFlow. Julian
BMW M635csi (Dinan 3. & 1976 Interceptor Convertible
Re: Rebuild gets underway at last.....
That's useful to know Julian, I may look at changing to either an RPM or an Indy dual plane, although with efi a Torker single plane might be interesting.
1972 Interceptor MkIII (128/4886)