TVR Power - Griff upgrades
Discussion
Hi All
I've spoken to TVR Power, (see news on tvr-eng web site)and they are offering engine upgrades for all Rover V8 based TVRs. I guess they are diversifying, as the demand for Rover V8 engines drop off in the new TVR ranges.
I'm intereseted if anyone has had the upgrade(or equivalent) for the Griffith 500, this give about another 45 bhp apparently.
Is this a noticable (worthwhile) increase in performance, and what's the driveability like?
The cost is around £1500, they will also be offering suspension upgrades, etc in the future.
Barry
Tell a lie, more like £2800
5 LTR UPGRADE
GAS FLOW CYLINDER HEADS £660.00
SOLID LIFTERS £116.76 (SET)
ADJUSTABLE PUSH RODS £150.60 (SET)
STEEL ROCKER ARMS £272.00 (SET)
LARGE PLENUM & INTAKE MANIFOLD £800.00
LARGE BORE 90 DEG. AIRFLOW PIPE £37.50
B78ECS PLUGS £35.20 (SET)
TVR 377/21 @ 116 CAMSHAFT £168.00 (EACH)
ALL GASKETS, SEALS ETC. £70.00 (SET)
OIL & FILTER £34.02
ANTIFREEZE £14.95
LABOUR 12 HRS @ £42.00 PER HR £504.00
TOTAL = £2863.03
Has anyone had a similar upgrade to this?
Calling all uprated Griff owners, is extra power worth it! What are they like to drive.
B
I guess that's 45 TVR BHP, more like 30 BHp in the real world! Solid lifters (and the pushrods and rockers that go with them) seem like a dubious bad idea unless you're also getting a steel bottom end. The induction mods look sensible, although I don't know what spec heads that includes, since the original heads are already similar to big valve/Stage III from what I've heard. Don't know what that cam profile will be like to drive, but presumably when he says "Camshaft(EACH)" he's only proposing to fit one??? Very reasonable price if you do indeed get 45 BHP.
Peter Humphries (and a green V8S)
quote:
Tell a lie, more like £2800 5 LTR UPGRADE GAS FLOW CYLINDER HEADS £660.00 SOLID LIFTERS £116.76 (SET) ADJUSTABLE PUSH RODS £150.60 (SET) STEEL ROCKER ARMS £272.00 (SET) LARGE PLENUM & INTAKE MANIFOLD £800.00 LARGE BORE 90 DEG. AIRFLOW PIPE £37.50 B78ECS PLUGS £35.20 (SET) TVR 377/21 @ 116 CAMSHAFT £168.00 (EACH) ALL GASKETS, SEALS ETC. £70.00 (SET) OIL & FILTER £34.02 ANTIFREEZE £14.95 LABOUR 12 HRS @ £42.00 PER HR £504.00 TOTAL = £2863.03 Has anyone had a similar upgrade to this? Calling all uprated Griff owners, is extra power worth it! What are they like to drive. B
Pete, I had the cam changed (they only fitted one 
) in my Griff by TVR Power and the solid lifters etc. were recommended because of the longer overlap period of the new cam, which could increase the likelyhood of a valve touching a piston with the standard hydraulic lifters. (All according to TVR Power.)
Rich...
) in my Griff by TVR Power and the solid lifters etc. were recommended because of the longer overlap period of the new cam, which could increase the likelyhood of a valve touching a piston with the standard hydraulic lifters. (All according to TVR Power.)
Rich... Did you notice a power gain?
quote:
Pete, I had the cam changed (they only fitted one
Rich... 'Gas flowing' the already well-modded heads must mean detail finishing and matching work. Can't get bigger valves in, nor enlarge ports much more.
Solid lifters are good, but the (Volvo ?) steel rockers are adjustable, so you don't need adj. pushrods too, do you ? Why not fit aluminium roller rockers anyway ? Big air pipes and modded inlet manifolds and plenums sound good, but doesn't Tim Lamont/ACT do some real stuff in carbon that might even work whilst looking..nice.
I can't guess how all these mods, inc. block work to change oil flow rates(lifters) takes only 12 hours, especially with setting up the new beastie as well to maximise cam timing/fuelling/ignition etc..and presumably still keeping the lovely tuned length manifolds and cats working as before.
Oh, I'm sorry to rant on, but someone had to say it - what a load of b+ll++++.
Hi Mikey
I would like to 'assume' TVR Power know what they are doing. So specifically, what is b******t about the quote. the work, the concept, the time quoted?
As I would expect as part of TVR they would not deleiver any work to the engine, that wasn't accurate or acheivable in the time quoted.
I'm really looking to get a comment from someone who has had this work done, and what they think of it.
B
B
Craig,
The low range power is fairly unchanged, but as the revs gain the acceleration becomes much more aggressive and lasts for much longer. The engine has also aquired more of a growl.
Some of this change is due to the engine having fueling problems before the chipping.
Basically, now there is more than enough power for road driving, and plenty for track driving, whereas before, on the Snetterton back straight for instance, you felt the power leveling out.
You can see the improvement graphically in the 'files' section under ChuffsChimp.
The only downside is I decided to be frank with my insurance and tell them about the mod, and now only NU will insure me.
Dr C
quote:
where did you notice the power gains?
Craig,
Haven't tried it at Snett since the chip yet.
Before I think I got to about 120ish, but I probably could have gone faster with a better exit from sears. I had a massive spin there once (ended up almost on the A11) and have been a bit ginger ever since.
I look forward to trying to better 120 though!
Dr C
Dear Barry,
Sorry to have offended you maybe? Can't comment on the unknown - time and work, but the concept was the target. It was meant as bollocks, not bull****. IMHO.
As the good Doctor pointed out, why not get the ECU re-mapped as a starting point? Or at least get the car onto a well known and respected rolling road to see what it's got now, preferably back to back with a chums' Griffith. That will give you a huge amount of valuable info to ponder with.
Just giving £2800 (plus vat?) away is like having an answer without a question, surely.
IMHO of course. Mikey.
Hi Mikey
No offence, It's TVR's statement of work.
I'm just trying to get an opinion of the performance upgrade that TVR Power are offering. From someone who has had it, or something similar.
So I didn't quite understand for what reason you thought it B******s..
Second thought is. What about insurance, how much might this put on the premium?
B
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