Have TVR ever made a 3.6?????????
Discussion
While officially the Tamora / T350 have a sleeved version of the 4.0litre engine - no one seems to have spotted / driven / bought one. All the early Tamoras were coming out of the factory with the 4.0, as it was cheaper to chuck that in than to sleeve down etc (as the base unit is a 4.0) according to numerous sources in the know (i.e in the workshop not salesmen) TVR have not actually put a 3.6 into either the Tamora or the T350c.
So my question is - have they actually built one and are they going to keep up this pretence to keep Tuscan / Speed 6 / T440R drivers happy despite the Tuscan having the same engine as its baby brother???
So my question is - have they actually built one and are they going to keep up this pretence to keep Tuscan / Speed 6 / T440R drivers happy despite the Tuscan having the same engine as its baby brother???
All the current standard Tuscans, Tamora and T350 are coming with the 3.6.
You can easily spot the difference to the standard 4.0, because the 3.6 revs much more smother and has on the topend less vibrations.
Afaik and from what I've heart at the factory the 3.6 configuration is the best for the Speed Six engine.
Also very impressive is the power increase at 5000rpm, it reminds me on the early Cerberas. Very nice.
So go for the 3.6, bets Straight Six from TVR yet...
Christof
You can easily spot the difference to the standard 4.0, because the 3.6 revs much more smother and has on the topend less vibrations.
Afaik and from what I've heart at the factory the 3.6 configuration is the best for the Speed Six engine.
Also very impressive is the power increase at 5000rpm, it reminds me on the early Cerberas. Very nice.
So go for the 3.6, bets Straight Six from TVR yet...
Christof
plotloss said:
nubbin said: But, a little bird at the factory (no, not Danielle!) did mention to me that some early Tamoras were indeed packing 4l engines....
Theres someone on this very board with a 4.0 Tamora I seem to remember...
Matt.
Yep... pretty sure there is... and no, it's not me.. (damn)
If you look at the earlier thread nobody knows for sure what engine they have?
www.pistonheads.com/gassing/topic.asp?t=9004&f=7&h=0
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
>> Edited by alt on Tuesday 14th January 09:58
www.pistonheads.com/gassing/topic.asp?t=9004&f=7&h=0
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
>> Edited by alt on Tuesday 14th January 09:58
alt said: If you look at the earlier thread nobody knows for sure what engine they have?
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
Unless of course, one of the owners of the cars in question has spoken to someone "in the know" and had the fact confirmed.
alt said: If you look at the earlier thread nobody knows for sure what engine they have?
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
Isn't the 3.6 exactly the same block but with a shortened stroke?
That would, if I remember my basic engine theory, reduce the torque (particularly at the low end) and increase the smoothness at higher revs.
That's a pretty apt descrption of the 3.6 engine, plus it makes more financial sense for TVR to fabricate a single block anyway.
It seems pretty logical that when TVR split the Tuscan from "regular 4.0" into "regular 3.6 " and "4.0 S" versions, they de-stroked the 4 liter engine to reduce the power slightly and then fitted the power mods they'd developed for the Red Rose version to the "S" as standard. It is also seems likely that the 4.2 version to be seen in the "R" is the same block/bore as well but with a further lenghthened stroke.
Which makes one wonder how difficult it would for owners of the 3.6 Tuscans and Tamora/T350s to "re-stroke" the engine to regain the extra power.
Hmmm....
JonGwynne said:
alt said: If you look at the earlier thread nobody knows for sure what engine they have?
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
Isn't the 3.6 exactly the same block but with a shortened stroke?
That would, if I remember my basic engine theory, reduce the torque (particularly at the low end) and increase the smoothness at higher revs.
That's a pretty apt descrption of the 3.6 engine, plus it makes more financial sense for TVR to fabricate a single block anyway.
It seems pretty logical that when TVR split the Tuscan from "regular 4.0" into "regular 3.6 " and "4.0 S" versions, they de-stroked the 4 liter engine to reduce the power slightly and then fitted the power mods they'd developed for the Red Rose version to the "S" as standard. It is also seems likely that the 4.2 version to be seen in the "R" is the same block/bore as well but with a further lenghthened stroke.
Which makes one wonder how difficult it would for owners of the 3.6 Tuscans and Tamora/T350s to "re-stroke" the engine to regain the extra power.
Hmmm....
Jaguar do a similar thing with the V6 in the X-Type...
Podie said:
alt said: If you look at the earlier thread nobody knows for sure what engine they have?
We all have log books that say 3.6l, anything else is pure speculation.
Cheers..... Andrew
Unless of course, one of the owners of the cars in question has spoken to someone "in the know" and had the fact confirmed.
Yep, the 4.0 car I know of was a factory special because its an S unit.
Matt.
RichB said:So is it stroked or sleeved? R...
JonGwynne said: Isn't the 3.6 exactly the same block but with a shortened stroke?
OK, I got frustrated and did a web search. According to various sites, the bore/stroke for the 4.0L Speed Six comes out to 96/92mm.
The specs for the Tamora were harder to find but I found a site which gave them as 96/83mm.
It should be said that I was unable to find any specs on TVR's own web site so no one should bet the farm on these figures.
However, the math seems to work:
96mm Bore * 92mm Stroke * 6 cylinders = 3995.503cc
96mm Bore * 83mm Stroke * 6 cylinders = 3604.638cc
It also bears out my theory that it would be most logical for TVR to use the same block and pistons for both versions of the engine.
Also, by "squaring" the engine and increasing the stroke to 96mm, the displacement would be increased to 4169.22cc - i.e. ~4.2 liters - the displacement of the Tuscan R's engine.
With the appropriate changes to the cam, strengthening of the con-rods and bottom end of the engine, this engine would easily put out the horsepower as well as more torque claimed for the R. This extra torque (gobs of it, unless I'm very much mistaken), combined with the lighter body might also explain why TVR are developing traction control for possible inclusion in this car.
Personally, I think they shouldn't. It would open them up to charges of hypocrisy (and demands that TC be included on all TVRs) by the "buzzword lemmings" in the motor press who view TC and ABS as "safety equipment" with the implication that any car which lacks them is inherently unsafe.
I actually read a review of the Tuscan which complained about its lack of boot space. Can you imagine? These people actually feel qualified to pass judgement on cars... What a thought!
>> Edited by JonGwynne on Tuesday 14th January 14:17
Torque is a quite interesting point.
As mentioned before, I had a chat with Mr.Wheeler about the engine seizes in a very light car.
He told me that power alone says nothing about performance if you won't be able to get it on the street.
Based on this he personally prefer the 3.6 to the 4.2, because the 4.2 has too much torque to handle and therefore we hearing the rumours of getting a tc fitted as standard.
Christof
>> Edited by christof on Tuesday 14th January 16:01
As mentioned before, I had a chat with Mr.Wheeler about the engine seizes in a very light car.
He told me that power alone says nothing about performance if you won't be able to get it on the street.
Based on this he personally prefer the 3.6 to the 4.2, because the 4.2 has too much torque to handle and therefore we hearing the rumours of getting a tc fitted as standard.
Christof
>> Edited by christof on Tuesday 14th January 16:01
plotloss said:
M@H said: Would thie car in question be a yellow one by any chance....
Nope!
Intruiged yet?
Matt.
Well, that would make two then....
because I got it from a very reliable source that my yellow one was not 3.6. However, no-one will ever put it in writing or confirm it on here or anywhere else. You just have to drive a later one and then mine and you'll soon tell the difference. Doesn't matter now anyway because it went back to TMS last week as the trade in for my new T350..
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