Search found 41 matches

by FBW
Wed Sep 02, 2026 7:51 am
Forum: Engines Area
Topic: Rover V8 3.5 rebuild – 9.75:1, Kent H200, Flapper EFI
Replies: 4
Views: 659

Re: Rover V8 3.5 rebuild – 9.75:1, Kent H200, Flapper EFI

I saw that you also posted in the LRUK forum.

There are significantly more people reading there, and you have the chance to get other opinions.

I'll reply there.
by FBW
Sat Aug 29, 2026 2:52 pm
Forum: Engines Area
Topic: Rover V8 3.5 rebuild – 9.75:1, Kent H200, Flapper EFI
Replies: 4
Views: 659

Re: Rover V8 3.5 rebuild – 9.75:1, Kent H200, Flapper EFI

I couldn't agree more. A well-built 3.5L is a great engine—in a lightweight car.
It really struggles in a 4x4, though.
That’s why I wouldn’t invest a single cent in the 3.5L.

I can highly recommend the Kent H180 cam for 4x4 use; when the setup is optimized for torque, it delivers a nearly brutal ...
by FBW
Thu Jul 09, 2026 10:10 pm
Forum: Engines Area
Topic: Shaking down my rebuild - a few issues...
Replies: 10
Views: 277

Re: Shaking down my rebuild - a few issues...

That seems like a lot for blow-by.
Is there perhaps too much oil in the oil pan?

greeting
Frank
by FBW
Thu Jun 25, 2026 9:35 am
Forum: Engines Area
Topic: Crank damper / pulley
Replies: 3
Views: 141

Re: Crank damper / pulley

Hi,
this is what the crankshaft pulley for the V8 with the interim cover looks like.
On the left, one from the 4.6. On the right, the one for the interim cover.

https://up.picr.de/51037250dh.jpg

https://up.picr.de/51037251lh.jpg

https://up.picr.de/51037252vv.jpg

https://up.picr.de ...
by FBW
Wed Jun 24, 2026 8:17 pm
Forum: Engines Area
Topic: Crank damper / pulley
Replies: 3
Views: 141

Re: Crank damper / pulley

I should have something on the shelf. I'll take a look and get back to you.

Regards,
Frank
by FBW
Sat Apr 11, 2026 8:48 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: 3d printed itb manifold
Replies: 21
Views: 903

Re: 3d printed itb manifold

Very interesting.

Can the material withstand the expected temperatures permanently?

Regards, Frank
by FBW
Fri Apr 03, 2026 10:53 am
Forum: Engines Area
Topic: Rover V8 connecting rods and pistons
Replies: 2
Views: 376

Re: Rover V8 connecting rods and pistons

Connecting rods with part number HRC1037 were used in the 3.5 / 3.9 / 4.2 and various TVR engines.

HRC1828 are the standard pistons for the 3.9-liter engine.

However, that engine has a diameter of 94mm. If you measured above the piston rings, 93.35mm might be the correct size. Measure ...
by FBW
Tue Feb 10, 2026 9:55 am
Forum: Engines Area
Topic: Help identify a camshaft
Replies: 5
Views: 8155

Re: Help identify a camshaft

Visually, it could be a standard camshaft.

https://up.picr.de/50568893un.jpg


It also has the CWC marking and no stamping on the face.

https://up.picr.de/50568895op.jpg


You should measure the cam lift.
In my opinion, that doesn't match the compression ratio at all. Are those really 28cc ...
by FBW
Thu Feb 05, 2026 11:26 pm
Forum: Engines Area
Topic: Help identify a camshaft
Replies: 5
Views: 8155

Re: Help identify a camshaft

On the back of the camshaft, there's only "CWC" printed on it, nothing else?

Take a picture of the camshaft. Something like this.

Image



Regards,
Frank
by FBW
Thu Feb 05, 2026 11:00 pm
Forum: Engines Area
Topic: Help identify a camshaft
Replies: 5
Views: 8155

Re: Help identify a camshaft

Holy cow!
I made myself an Excel spreadsheet to calculate compression ratios.

A 3.5L engine
with 10.5:1 pistons,
sheet metal gasket,
and 28cc cylinder heads

» has a calculated mechanical compression ratio of an unhealthy 12.47:1 !! :shock:


I'm afraid I don't know anything about the camshaft ...
by FBW
Sun Jan 04, 2026 8:03 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: In search of Boxer air filters
Replies: 9
Views: 15157

Re: In search of Boxer air filters

Hello,

In my opinion, it's a big mistake to install an Edelbrock/Holley 4-barrel carburetor like that. It might be halfway decent for cars with large engines that are always driven hard. But for everyday driving, there's nothing better than the SU.

The engine doesn't look standard. I see tubular ...
by FBW
Sun Jan 04, 2026 5:37 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: In search of Boxer air filters
Replies: 9
Views: 15157

Re: In search of Boxer air filters

Hello,

unfortunately I don't have any information about the air filter.

The topic of the Boxer 4x SU is super interesting though. I have one installed on my Morgan.


Image


Greeting Frank
by FBW
Thu Dec 04, 2025 5:49 pm
Forum: Engines Area
Topic: Camshaft choice for a 3.9 EFi engine.
Replies: 5
Views: 10092

Re: Camshaft choice for a 3.9 EFi engine.

It's really annoying that the camshaft specifications aren't standardized.

That's also why I went to the trouble of measuring the camshafts.

I had also bought some as part of a package with other parts. New camshafts with numbers for which I couldn't find any information anywhere. After measuring ...
by FBW
Wed Dec 03, 2025 10:02 pm
Forum: Engines Area
Topic: Camshaft choice for a 3.9 EFi engine.
Replies: 5
Views: 10092

Re: Camshaft choice for a 3.9 EFi engine.

Hello,

see: https://www.v8tuning.co.uk/viper-hurricane

Unfortunately, it's currently out of stock.


I could recommend the Piper RP4. It's quite similar to the Hurricane and runs extremely smoothly and cleanly at very low RPMs.

https://up.picr.de/50334418fo.jpg


It's no longer listed on Piper ...

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