TVR Griffith 400 '250'?
Discussion
Hi all; long time lurker, first time poster.
I'm trying to find some information on a 400 derivative; the '250'.
The 400 and 400 HC are well documented, with an alleged 240 and 275 bhp respectively. Both have their unique plenum badges. The HC has a list of internal engine modifications, again, all well documented.
But what about the '250' with it's own unique plenum badge?
What was this car? What was done to the engine for those extra 10 horses? Solely mapping, or breathing, or cam? Was it a factory option or a dealer modification? Does anyone have any sales literature for this option?
It carries nothing in a value premium I'm sure, but would it be fair to say this option is rare? Google only returns about three old car adverts where sellers have clocked on to this 400-250 badge. All are pre-cat cars. The 250bhp output is not covered on wiki for either the Griff or Chim, or any TVR book I own.
In the grand scale of things, I know it doesn't mean a great deal. TVR bhp figures were subject to interpretation anyway and when you put these 22 year old cars on a dyno, you never know what you are going to get. It's a question purely for my (our?) own intrigue.
I bow to your collective superior knowledge....!
I'm trying to find some information on a 400 derivative; the '250'.
The 400 and 400 HC are well documented, with an alleged 240 and 275 bhp respectively. Both have their unique plenum badges. The HC has a list of internal engine modifications, again, all well documented.
But what about the '250' with it's own unique plenum badge?
What was this car? What was done to the engine for those extra 10 horses? Solely mapping, or breathing, or cam? Was it a factory option or a dealer modification? Does anyone have any sales literature for this option?
It carries nothing in a value premium I'm sure, but would it be fair to say this option is rare? Google only returns about three old car adverts where sellers have clocked on to this 400-250 badge. All are pre-cat cars. The 250bhp output is not covered on wiki for either the Griff or Chim, or any TVR book I own.
In the grand scale of things, I know it doesn't mean a great deal. TVR bhp figures were subject to interpretation anyway and when you put these 22 year old cars on a dyno, you never know what you are going to get. It's a question purely for my (our?) own intrigue.
I bow to your collective superior knowledge....!
Well according to this advert for one it has gas flowed heads which might mean they got the heads from a 430?
You could always call HHC and enquire as to the provenance of their car's modifications...
You could always call HHC and enquire as to the provenance of their car's modifications...
ToneyCaroney said:
Pretty sure my brother had a 400 / 250 Griff back when they were new. I'll see what I can find out tomorrow.
Yes he did, a 1992 4.0l '250 bhp' option which had gas flowed heads, for an extra #1K or so I think.Think it was probably a popular option back then as the 4.3 was an extra #3K ish so out of reach for some.
I've got a 1992 precat Griffith which originally had a 250 4-litre engine fitted. When I stripped the engine to rebuild it, I found the following.
Ported cylinder heads with standard valves, Ported inlet manifold, TVR51 cam and Lightened flywheel.
On Austec rolling road it made 225hp @ flywheel with 60,000 miles on the clock.
Hope this helps
Precat
Ported cylinder heads with standard valves, Ported inlet manifold, TVR51 cam and Lightened flywheel.
On Austec rolling road it made 225hp @ flywheel with 60,000 miles on the clock.
Hope this helps
Precat
According to a 1992 UK price list I have the gas flowed heads option (250bhp) was listed as a dealer fitted option, listing at £854.67 inc VAT. The only other dealer fitted option listed was a microwave sensor for the alarm, all other options being factory fitted.
I apparently have the GSF option on my 400 from delivery to the first owner but annoyingly dont have the plenum badge, just the standard one.
I apparently have the GSF option on my 400 from delivery to the first owner but annoyingly dont have the plenum badge, just the standard one.
Griffer said:
According to a 1992 UK price list I have the gas flowed heads option (250bhp) was listed as a dealer fitted option, listing at £854.67 inc VAT.
Thats brilliant, thanks all. I can't believe its a dealer fitment!!!Looks like I need to keep my eyes open on eBay for a similar 1992 price list.
Again, many thanks for clarifying the source.
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