V8 cam specs wanted

[dbv8]

Does anyone have a list of all available cams and specs for the RV8.

Im interested in lifts, duration and LSAs etc.
Or if people know specs of certain cams we can make a list here.

[spend]

Hardcastle lists plenty IIRC

[Podie]

Might be worth a chat to "Rob" Robertson at V8D.

[dbv8]

Podie said:

Might be worth a chat to "Rob" Robertson at V8D.

Hes not answering my latest emails so must be busy.
I think V8D are a bit secretive about their cam specs.
Ive also approached them about other parts and waiting for a second reply.

[rev-erend]

Don't think you will get actual spec's out of V8 developments or off TVR Power.

This cam table is useful for reference :

http://www.btinternet.com/~jon.wolfe/kentcamdata.h...

[HarryW]

rev-erend said:

Don't think you will get actual spec's out of V8 developments or off TVR Power.

This cam table is useful for reference :

http://www.btinternet.com/~jon.wolfe/kentcamdata.h...

The 218 whilst seemingly tame compared to 214/234 when you compare duration and lift is still a very good cam for most RV8's in Tivs. When set with slightly different timing settings to standard (108 vs 112 I think) it can give very nice results and keep the cars manners, cake and eat.
I ran it in a 4ltr and had 275hp/280lbs in NA guise, it was helped by mapped ignition and as if you know your TVR RV8's for a 4ltr that's a healthy output.
I believe, but do not know, the V8D specials used the 218 as the starting point for their development, what they use now I haven't a clue.

[Boosted LS1]

If the OP gets a book he can trawl through the specs and work out the overlaps etc. Hardcastle is a reasonably good starting point, then there are the cam grinders in the UK followed by the ford grinders in the US. There's a clue there but I don't want to make it to easy.

[GV]

Try Real Steel - they have a comprehensive list of cams for specific use.

[dbv8]

Boosted LS1 said:

I don't want to make it to easy.

I thought the internet was designed to do away with 'old school' research.
I have the hardcastle book and also real steels catalogue but the cams are old and i was hoping to compare modern grinds and maybe choose 1 that suits my purpose.
Why all the secrecy?
Let people learn and choose as they see fit.
If anyone knows the LSA's etc of the V8D cams, particularly the MCs and 404 then please PM me.

[Boosted LS1]

^ Half the fun is doing it yourself hence why I gave you a clue.

[Wotland]

I don't have V8D Cam details but may be this camshaft details can help you :
Make Number Timing Period Valve lift Lifters Class Comments
Oselli RV8255 22/62/62/22 264° .421" Hyd . Mild Road Extra low and mid end power. Good for towing/load carrying.
Oselli RV8271 28/64/64/28 272° .439" Hyd . Road Improves mid and top end power. Good flexibility.
Oselli RV8214 31/73/80/34 284/294° .469 "/.494" Hyd. Road Good all round improvement.
Oselli RV8286 44/72/72/44 296° .439" Hyd . Road Excellent road cam. Ideal for fuel injected engines.
Oselli RV8480 36/76/76/36 292° .480" Hyd . Fast Road Extra mid and top end power. Ultimate for auto-transmission.
Oselli RV8502 37/77/77/37 294° .495 " Hyd . Road/Rally Slightly lumpy tickover. Good power 2000 rpm upwards.
Oselli RV8224 36/78/85/39 294/304° .494"/.520" Hyd. Road/Rally Extended top end power with up to 7000rpm
Oselli RV84 35/71/71/35 286° .516" Hyd. Rally Good all round competition cam. Power band 2500-7000 rpm
Oselli RV8481 42/82/82/42 304° .496 " Hyd. Rally Poor low end tractability. Power band 3000-7000 rpm
Oselli RV8234 38/80/87/41 298/308° .520"/.542" Hyd. Rally Poor idle and low end but excellent power over 3500 rpm
Oselli RV8500 46/82/82/46 308° .542" Hyd . Race Ultimate hyd. camshaft. Power band4000-7000 rpm
Oselli RV8900 42/78/78/42 300° .500" Solid Rally Poor tickover. Excellent mid and top range power.
Oselli RV8100 47/83/83/47 310° .530" Solid Race Maximum power for full race spec, engine.High rpm.
Kent H180 28/64/64/28 272° .439" Hyd. Mild Road Good for automaticsPower band 1000-4500 rpm
Kent H200 20/64/69/25 264° .435 "/.460" Hyd Mild Road For pre-SD1. Also good for automatics.
Kent H214 31/73/80/34 284° .469 "/.494" Hyd. Fast Road Very flexible. Power from 1500-5000 rpm.Good road camshaft.
Kent H224 36/78/85/39 294° .494"/.520" Hyd. Road Rally Slight loss of flexibility. Power comes in 2000-5500 rpm.
Kent H234 38/80/87/41 298° .520" /.542" Hyd. Rally Poor low end, but improves mid and top end power.
Kent GPA 44/76/76/44 300° .390" Hyd. Rally Same valve lift as standard engine (.390")
Kent M238 42/78/78/42 300° .512" Solid Rally Higher rpm use. Power band from 2750-7000rpm.
Kent M248 48/82/84/46 310° .533" Solid Rally/Race High rpm camshaft. Power band from 3500-8250rpm
Kent M256 42/70/83/39 310° .546"/.564" Solid Race Ultimate race cam. Full race engine only. Power 4000-8250 rpm
Piper HR270 22/62/64/28 264°/272° .421"/.439" Hyd. Road Flexible with good mid and top end improvement.
Piper HR270/2 28/64/64/28 272° .440" Hyd . Fast Road Mk1 1 of above cam.
Piper HR285 44/72/72/44 296° .439" Hyd. Fast Road Ultimate road cam. Tractable but slightly lumpy tickover.
Piper HR300 36/68/68/36 284° .440" Solid Competition Accent on mid-range power. Power band 3000-7000 rpm.
Piper HR320 52/84/84/52 316° .471" Solid Race Mid and top end power. Excellent circuit race cam.
Crane H-194 10/54/59/15 244/254° .400 "/.430" Hyd. Road Economy cam only. Not to be used with comp. ratio over 8.75:1
Crane H-204 15/59/65/21 254/266° .430"/.456" Hyd. Mild Road Improvement over standard cam. Can be straight swap.
Crane H-216 21/65/71/27 266/278° .456 "/.480" Hyd. Road Excellent all rounder. Good power increase across rev. range.
Crane H-224 36/78/85/39 294/304° .494"/.520" Hyd. Fast Road Slightly lumpy idle. Good for lighter vehicles eg. sports cars.
Crane H-234 38/80/877/41 298/308° .520"/.542" Hyd. Road/Comp. Ultimate hyd. cam but compromise in road car.
Crane F-228 38/72/74/36 290° .491 " Solid Road Particularly suitable for turbo or supercharging.
Crane F-238 42/78/78/42 300° .512" Solid Road/Comp. Wide power band. Does not need high rpm.
Crane F-248 48/82/84/46 310° .533" Solid Rally Wide power band. Works well with Holley 4-barrel carb.
Crane F-256 42/70/83/39 292/302° .546"/.564 " Solid Competition Good mid and top end power.
Crane F-266 47/75/88/44 302/312° .564"/.584" Solid Competition Out and out power. Engine must be capable of high rpm.
Crane F-276 52/80/93/49 312/322° ,584"/.602" Solid Competition Radical race engines only. The ultimate.
JE Motors JE101 20/65/25/20 265/225° .430" Hyd. Road
JE Motors JE102 43/79/79/43 302° .500" Hyd. Fast Road Good power from 3000-6500 rpm. Peak torque 5000 rpm
Holbay 111R 39/73/73/39 292° .429" Hyd. Fast Road The Tornado
Holbay 125LHC 40/84/89/45 304/314° .520"/.541" Hyd. Competition Designed for maximum performance within rpm limits of hyd. lifters.
Holbay K3A 58/88/74/50 326/304° .432" Solid Competition High torque design.
Holbay 751R 63/95/95/63 338° .451 " Solid Competition Maximum bhp at higher rpm.
Holbay Standard 30/75/68/37 285° .390"/.385" Hyd. Production 3. 5-litre (SD1)

[dbv8]

Boosted LS1 said:

^ Half the fun is doing it yourself hence why I gave you a clue.

Thats no fun when im stuck in work after making the mistake of mixing red and white last night.

Not in the mood for a riddle me this game.

[rev-erend]

Wotland said:

I don't have V8D Cam details but may be this camshaft details can help you :
Make Number Timing Period Valve lift Lifters Class Comments
Oselli RV8255 22/62/62/22 264° .421" Hyd . Mild Road Extra low and mid end power. Good for towing/load carrying.
Oselli RV8271 28/64/64/28 272° .439" Hyd . Road Improves mid and top end power. Good flexibility.
Oselli RV8214 31/73/80/34 284/294° .469 "/.494" Hyd. Road Good all round improvement.
Oselli RV8286 44/72/72/44 296° .439" Hyd . Road Excellent road cam. Ideal for fuel injected engines.
Oselli RV8480 36/76/76/36 292° .480" Hyd . Fast Road Extra mid and top end power. Ultimate for auto-transmission.
Oselli RV8502 37/77/77/37 294° .495 " Hyd . Road/Rally Slightly lumpy tickover. Good power 2000 rpm upwards.
Oselli RV8224 36/78/85/39 294/304° .494"/.520" Hyd. Road/Rally Extended top end power with up to 7000rpm
Oselli RV84 35/71/71/35 286° .516" Hyd. Rally Good all round competition cam. Power band 2500-7000 rpm
Oselli RV8481 42/82/82/42 304° .496 " Hyd. Rally Poor low end tractability. Power band 3000-7000 rpm
Oselli RV8234 38/80/87/41 298/308° .520"/.542" Hyd. Rally Poor idle and low end but excellent power over 3500 rpm
Oselli RV8500 46/82/82/46 308° .542" Hyd . Race Ultimate hyd. camshaft. Power band4000-7000 rpm
Oselli RV8900 42/78/78/42 300° .500" Solid Rally Poor tickover. Excellent mid and top range power.
Oselli RV8100 47/83/83/47 310° .530" Solid Race Maximum power for full race spec, engine.High rpm.
Kent H180 28/64/64/28 272° .439" Hyd. Mild Road Good for automaticsPower band 1000-4500 rpm
Kent H200 20/64/69/25 264° .435 "/.460" Hyd Mild Road For pre-SD1. Also good for automatics.
Kent H214 31/73/80/34 284° .469 "/.494" Hyd. Fast Road Very flexible. Power from 1500-5000 rpm.Good road camshaft.
Kent H224 36/78/85/39 294° .494"/.520" Hyd. Road Rally Slight loss of flexibility. Power comes in 2000-5500 rpm.
Kent H234 38/80/87/41 298° .520" /.542" Hyd. Rally Poor low end, but improves mid and top end power.
Kent GPA 44/76/76/44 300° .390" Hyd. Rally Same valve lift as standard engine (.390")
Kent M238 42/78/78/42 300° .512" Solid Rally Higher rpm use. Power band from 2750-7000rpm.
Kent M248 48/82/84/46 310° .533" Solid Rally/Race High rpm camshaft. Power band from 3500-8250rpm
Kent M256 42/70/83/39 310° .546"/.564" Solid Race Ultimate race cam. Full race engine only. Power 4000-8250 rpm
Piper HR270 22/62/64/28 264°/272° .421"/.439" Hyd. Road Flexible with good mid and top end improvement.
Piper HR270/2 28/64/64/28 272° .440" Hyd . Fast Road Mk1 1 of above cam.
Piper HR285 44/72/72/44 296° .439" Hyd. Fast Road Ultimate road cam. Tractable but slightly lumpy tickover.
Piper HR300 36/68/68/36 284° .440" Solid Competition Accent on mid-range power. Power band 3000-7000 rpm.
Piper HR320 52/84/84/52 316° .471" Solid Race Mid and top end power. Excellent circuit race cam.
Crane H-194 10/54/59/15 244/254° .400 "/.430" Hyd. Road Economy cam only. Not to be used with comp. ratio over 8.75:1
Crane H-204 15/59/65/21 254/266° .430"/.456" Hyd. Mild Road Improvement over standard cam. Can be straight swap.
Crane H-216 21/65/71/27 266/278° .456 "/.480" Hyd. Road Excellent all rounder. Good power increase across rev. range.
Crane H-224 36/78/85/39 294/304° .494"/.520" Hyd. Fast Road Slightly lumpy idle. Good for lighter vehicles eg. sports cars.
Crane H-234 38/80/877/41 298/308° .520"/.542" Hyd. Road/Comp. Ultimate hyd. cam but compromise in road car.
Crane F-228 38/72/74/36 290° .491 " Solid Road Particularly suitable for turbo or supercharging.
Crane F-238 42/78/78/42 300° .512" Solid Road/Comp. Wide power band. Does not need high rpm.
Crane F-248 48/82/84/46 310° .533" Solid Rally Wide power band. Works well with Holley 4-barrel carb.
Crane F-256 42/70/83/39 292/302° .546"/.564 " Solid Competition Good mid and top end power.
Crane F-266 47/75/88/44 302/312° .564"/.584" Solid Competition Out and out power. Engine must be capable of high rpm.
Crane F-276 52/80/93/49 312/322° ,584"/.602" Solid Competition Radical race engines only. The ultimate.
JE Motors JE101 20/65/25/20 265/225° .430" Hyd. Road
JE Motors JE102 43/79/79/43 302° .500" Hyd. Fast Road Good power from 3000-6500 rpm. Peak torque 5000 rpm
Holbay 111R 39/73/73/39 292° .429" Hyd. Fast Road The Tornado
Holbay 125LHC 40/84/89/45 304/314° .520"/.541" Hyd. Competition Designed for maximum performance within rpm limits of hyd. lifters.
Holbay K3A 58/88/74/50 326/304° .432" Solid Competition High torque design.
Holbay 751R 63/95/95/63 338° .451 " Solid Competition Maximum bhp at higher rpm.
Holbay Standard 30/75/68/37 285° .390"/.385" Hyd. Production 3. 5-litre (SD1)

Many Thanks for that - that's the most comprehensive list I've ever seen.

Even spotted my new cam in that lot .. it's made by Crane and is pretty wild (for the road)

[dbv8]

rev-erend said:

Even spotted my new cam in that lot .. it's made by Crane and is pretty wild (for the road)

Can i ask which crane you have? Your profile says 404 ???

Excellent list thanks Wotland.
Now i might be a bit of a numpty but can we work out LSA from the figures given?
Or is the LSA another variable?

Edited by dbv8 on Wednesday 30th September 10:37

[rev-erend]

Yes - was running a solid lifter V8 Developments 404 but the new engine has a Crane M256. Spec seems identicle to Kent M256.

It must be said - it's not a cam that is going to work on most engines but mine is a bit special.

[domV8]

I am trying to find the details for the "TVR885" cam - think it was made by Kent, believe TVR Power had a hand in the design somewhere..?

Does anyone know specs such as duration, rpm bands, etc..?

cheers,

Dom

[rev-erend]

domV8 said:

I am trying to find the details for the "TVR885" cam - think it was made by Kent, believe TVR Power had a hand in the design somewhere..?

Does anyone know specs such as duration, rpm bands, etc..?

cheers,

Dom

Al Melling mentioned at his talk that his company designed 54 different cam designs for the RV8
for TVR. So it may not have been designed by TVR Power.

[300bhp/ton]

dbv8 said:

Podie said:

Might be worth a chat to "Rob" Robertson at V8D.

Hes not answering my latest emails so must be busy.
I think V8D are a bit secretive about their cam specs.
Ive also approached them about other parts and waiting for a second reply.

I've never understood companies being secretive about cam specs. For many of us who don't fully understand the numbers it would make no odds at all to know.

For those that understand it fully could easily work out what cam profiles would or wouldn't work well with any given engine.

And if someone really wanted to know they could just by a cam an measure/profile it.

[spend]

..But how much do these discrete measurements tell you about the profiles - which are what really make the difference AIUI. I can quite understand Robs stance of not getting into willy waving competitions about lift & duration - its like saying to choose a car just because of the size of its tyres IYSWIM?

In all honesty he is probably doing us all a favour IMHO. I measured loads of cams with a dial gauge, log them and even put them into an animation I wrote, but without all the gas speeds etc they really don't tell you an awful lot. It can just raise more questions than it answers sometimes, and when you can just ask Rob to make you a cam - why bother?

[rev-erend]

Spend - I'm not really sure why some people and companies are secretive .. as you say - it's very easy to just measure the cam but for most of us punters people like Rob are brilliant to have because we can just call them up - describe the engine and any mods and how we want the car to drive - they them recommend the best cam for us and any ramificatiuons of the cam choices like whether a remap is needed.