Interesting advice in evo re starting...

[Nuggs]

I know that there have been a few threads on the best way to treat a cold Tiv, with the vast majority of advice based on variations of don't hit the loud pedal too hard or let it rev too high before it's warmed through...

However, in this month's evo (Ask The Experts, p67) Jeff Daniels advocates "...Blip[ping] a cold engine a few times , racing style..." on the premise that you "...create a certain amount of heat to help the general warming up process and thin the oil to working viscosity, and you splash the oil around the engine (an essentially mechanical process) before you subject it to load."

Seems to go against all the advice I've read on here.

Any thoughts?

Edited by Nuggs on Saturday 26th May 18:15

[The AJP Griff]

Keeping the engine at higher revs than tickover also reduces the load duration on the cam lobes,until the oil is warm this is considered a good idea,recently discussed on a thread on here

[dnb]

Perhaps another reason why ECUs have a faster idle setting for warmup

[The Griffalo]

Yup, the author is a cock of the highest order.

[DonnyMac]

Am I doing this all wrong then -

Start
keep revs at 1,000 - 1,200
Wait for Water Temp to get to 50-70
Allow Oil Pressure to drop
Drive for 2-3 miles to 2,500 revs (usually in traffic)
When water temp reaches +85 and oil pressure has stabilised
FLOOR IT.

I'd murder someone who rev'd it like a racing car on start up - or am I not informed?

[thenick]

I reckon thats being a little on the safe side... I asked Dave Batty about this after he put my new cam in and he just said keep it between 1 and 3k revs after startup as the crank does not flick oil up high enough below 1k and so will lead to premature cam wear, especially with thin oil such as mobil 1 which will fall down quicker, and 3 until the oil was moving around nicely. Its the oil that needs to be hot and not the entire water supply so it is probably warm enough to floor it once it reaches 60 degrees - mine only ever reaches 70 in traffic anyway so if I was waiting for 85, I'd never get anywhere!

[BertBert]

Nuggs said:

I know that there have been a few threads on the best way to treat a cold Tiv, with the vast majority of advice based on variations of don't hit the loud pedal too hard or let it rev too high before it's warmed through...

However, in this month's evo (Ask The Experts, p67) Jeff Daniels advocates "...Blip[ping] a cold engine a few times , racing style..." on the premise that you "...create a certain amount of heat to help the general warming up process and thin the oil to working viscosity, and you splash the oil around the engine (an essentially mechanical process) before you subject it to load."

Seems to go against all the advice I've read on here.

Any thoughts?

Edited by Nuggs on Saturday 26th May 18:15

The bit I loved was the "splash the oil around a bit" what boocks!

There is clear sense in being sensible with warming up and not using the performance of the engine until the fluids have a sensible temperature.

However all the hype around warming up a TVR is all myth-ridden rubbish.

It goes:

Manufacturer - "oh shit my engines are going bang, better find out what's going wrong and fix it. Hmmm, need to stop too many law-suits so I need some spin. First of all, I'll deny it. Then I'll come up with a number of spurious reasons until I find the fault. And I'll come up with a story about how stressed the engine is and owners are not warming them up correctly."

Gullible owners buy the story, the whole warming up thing enters folk-lore and stays around for ever.

Just look at the Caterham R500 for example. Exactly the same story. Blamed on not enough oil (add an Apollo tank), blamed on oil too hot (add an oil cooler), blamed on coolant too hot (put a reduced temp thermostat, add bigger rad and control it from the ecu rather than the rad), blamed on the warm up procedure. Even now you have the R500 warming up procedure ensconsed in folk-lore, caterham owners everywhere terrified about their oil temps and fitting oil coolers, owners fitting big rads etc etc.

And they fixed it with better bearing shells!

Of course, I could be wrong!

Bert

[Bluebottle]

The AJP Griff said:

Keeping the engine at higher revs than tickover also reduces the load duration on the cam lobes,until the oil is warm this is considered a good idea,recently discussed on a thread on here

I remember that thread, wasn't something mentioned about the cam followers only spinning above 1500rpm which is not a problem when the engine is warm and well lubricated but causes uneven and premature wear when cold?

[d_drinks]

The morning goes along the lines of start the car, let it idle for a few seconds, blip the thottle up to 3k a few times get things moving then move off keeping the revs below 4k until the car has warmed up to 60/70 then off you go. Sitting there for ages on tickover doesn't do the engine any good as the car is being over fuelled. No need to light it up off the first set of lights but no need to have the car sat there for 15mins. My Cerb has been used every day in all weathers for 2years and is still in rude health!

As an aside we warm all our race cars with the rev being blipped between tickover and 3k till warmed through - normally only a few mins.

Cheers
D

[The AJP Griff]

Bluebottle said:

The AJP Griff said:

Keeping the engine at higher revs than tickover also reduces the load duration on the cam lobes,until the oil is warm this is considered a good idea,recently discussed on a thread on here

I remember that thread, wasn't something mentioned about the cam followers only spinning above 1500rpm which is not a problem when the engine is warm and well lubricated but causes uneven and premature wear when cold?

[BertBert]

I'm sorry to go on, but it's all folklore, wake up.
Bert

[kevin63]

Sounds ideal for a Speed Six engine to me, no oil in the top of the engine coming through for first 10-12 seconds, so blip the throtle.
I THINK NOT.

[earlyriser]

I'm similar to few others, here. Start - a few blips to 2k - drive up to 2k until 50 degs. Folklore or not it seems intuitively sensible to treat a dry-sumped car with caution from cold.