Stage 1 conversion and insurance

Stage 1 conversion and insurance

Author
Discussion

johns355

Original Poster:

525 posts

154 months

Sunday 5th July 2015
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Thinking of having the stage 1 conversion to my standard 3R which I've been told will be about 400-420 bhp. What kind of impact would this make to my insurance? I'm 48, 7 years ncd, 1 own fault claim about 18 months ago and I normally pay about £400ish. I don't want any track cover, anybody had any experience of a good insurance company that doesn't take the pee when it comes to modifications? Also anyone had the same conversion to their car? Would you recommend it? My car hasn't flickered in the 2 years I've had her, Jetstream would do the work. cheers John

mrpbailey

975 posts

186 months

Sunday 5th July 2015
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Out of interest, what is a 'stage 1 conversion'?

AMG Merc

11,954 posts

253 months

Sunday 5th July 2015
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mrpbailey said:
Out of interest, what is a 'stage 1 conversion'?
+1?

johns355

Original Poster:

525 posts

154 months

Sunday 5th July 2015
quotequote all
Updated valve springs, uprated intercooler (which I'm getting a pro alloy), re-map apparently! Should be between 400-420bhp so I've been told.




mrpbailey

975 posts

186 months

Monday 6th July 2015
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No fuel pump or exhaust upgrade? Intercooler won't give power increase, will just stop heat soak. Valve springs allow you to hold the power at higher revs without float, so it's really only the re-map that is giving a real power gain, which I don't think will get you near 420. Have you had your car on a dyno? As some of them are only around 330 standard anyway?
I had dual exhaust, cam timing, fuel pump & wiring, intercooler and made just over 400 a few years ago. I also broke the gearbox at this power, which is something worth thinking about.

cdhoole

113 posts

150 months

Monday 6th July 2015
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Hi Johns355,

I am of a similar age and have a similar power output (425HP/400lbft with modified Exhaust/Fuel Pump/Intercooler/re-map)and I paid £500 with Sky Insurance. This was for 6,000 mile limit, social domestic and commute, £350 excess and with girlfriend as a named driver (yes I know, what was I thinking). I also declared all other mods such as wheels, hard pipe kits, even stereo etc. At the time, having trawled through this forum for clues as to who other owners had insured with, this seemed to be about the going rate as regards those I contacted. Others included track days for the same sum but restricted the mileage to 4,000 or 5,000 miles max. The cheapest I found with a 4,000 mile restriction was about £420.00. If you search on the forum, there is some debate as to whether you need to declare these modifications on the basis it is unlikely anyone would know what was original from the factory or not (and it varied), and while I think both points of view have merit I thought for the sake of a £100 or so it was worth hedging my bets!

Chris.

johns355

Original Poster:

525 posts

154 months

Monday 6th July 2015
quotequote all
mrpbailey said:
No fuel pump or exhaust upgrade? Intercooler won't give power increase, will just stop heat soak. Valve springs allow you to hold the power at higher revs without float, so it's really only the re-map that is giving a real power gain, which I don't think will get you near 420. Have you had your car on a dyno? As some of them are only around 330 standard anyway?
I had dual exhaust, cam timing, fuel pump & wiring, intercooler and made just over 400 a few years ago. I also broke the gearbox at this power, which is something worth thinking about.
Thanks for the feedback, if it risks the gearbox I think I'll give it a miss! Anyone else stuffed the gearbox by running 400ish hp?

johns355

Original Poster:

525 posts

154 months

Monday 6th July 2015
quotequote all
cdhoole said:
Hi Johns355,

I am of a similar age and have a similar power output (425HP/400lbft with modified Exhaust/Fuel Pump/Intercooler/re-map)and I paid £500 with Sky Insurance. This was for 6,000 mile limit, social domestic and commute, £350 excess and with girlfriend as a named driver (yes I know, what was I thinking). I also declared all other mods such as wheels, hard pipe kits, even stereo etc. At the time, having trawled through this forum for clues as to who other owners had insured with, this seemed to be about the going rate as regards those I contacted. Others included track days for the same sum but restricted the mileage to 4,000 or 5,000 miles max. The cheapest I found with a 4,000 mile restriction was about £420.00. If you search on the forum, there is some debate as to whether you need to declare these modifications on the basis it is unlikely anyone would know what was original from the factory or not (and it varied), and while I think both points of view have merit I thought for the sake of a £100 or so it was worth hedging my bets!

Chris.
Thanks for the feedback Chris, I appreciate it, have you had any gearbox issues running that power? Cheers John




Jarcy

1,559 posts

275 months

Monday 6th July 2015
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johns355 said:
Thanks for the feedback, if it risks the gearbox I think I'll give it a miss! Anyone else stuffed the gearbox by running 400ish hp?
Doesn't the 3r share the same (standard) gearbox as the M400? M400 is quoted 425bhp, so I'd have thought you should be OK with this power. Sure, some have failed, but is this due to the power increase or was it destined to fail anyway? I thought the general rule of thumb was if you want to go over 500bhp, then you should strengthen the gearbox.

mrpbailey

975 posts

186 months

Monday 6th July 2015
quotequote all
johns355 said:
Thanks for the feedback, if it risks the gearbox I think I'll give it a miss! Anyone else stuffed the gearbox by running 400ish hp?
Don't take it as gospel that the gearbox will fail tho, I suppose it could've gone at standard power too. I do trackdays and ran at 410/400lbft for about 2 years before it let go.

Now at around 520bhp and pay just over £500/year with unlimited trackdays thru mannings. Im 31, 5 yrs NCB, all mods declared and 5000miles limit.

TuxMan

9,010 posts

238 months

Monday 6th July 2015
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std box is ok with 400 ish bhp but like anything they wear out , nice thing about the stage 1 map is its much smoother and with the valve springs fitted the extra power is more up the rev range so much better to the box . in reality its the torque that kills the boxes .

simonx50

818 posts

160 months

Monday 6th July 2015
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Mines around 400hp/400lbft standard valve springs, bcs exhaust, fuel pump, intercooler upgrade. Standard box and standard diff still ok but have a new upgraded/strengthened box with LSD to fit. Should I be looking at upgrading my valve springs?

cdhoole

113 posts

150 months

Monday 6th July 2015
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Hi John,

I only bought the car in November last year and have only done a couple of thousand miles since, so unfortunately I can't help on the longevity of the gearbox. The car had the modifications done (increasing the power output) in Feb 2011 and when I bought the car from Bespoke the clutch did require changing (but the car had done 45,000 miles). This was done by Bespoke and the gearbox was sent off at the same time to have it checked, but it was found to be fine. From what I have gleaned from the forum the gearbox seems to cope with this power output, but then I guess it depends on how you use it!! Cheers Chris.

Green3R

400 posts

248 months

Tuesday 7th July 2015
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Just to chip in some clarification:

The valve timing is retarded (1 or 2 teeth on the belt) on standard Nobles as the valves bounce at high revs- retard reduces the top end rev range.
Fitting harder springs prevents the bounce and so the timing can be put back to Ford/Jag standard.
Not sure if the retard reduces power across the whole rev range...anyone..?

Someone will be along soon to clarify my clarification!

Blu3R

2,371 posts

199 months

Wednesday 8th July 2015
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Here's my personal opinion on the whole valve spring situation:
If you're going for big power then it'll be something necessary for you to achieve your target. If you want 'some more power' then rather than forcing the power band higher up the Rev range and forcing everything to work much faster for little reason, why not leave the timing alone and do all the other things necessary to achieve a sensible figure?
A standard car will need a fuel pump upgrade plus larger gauge wiring. At that point you can have a remap and maybe reach 375/380.
Or you could fit a better spec intercooler and then remap for maybe 390/400. Or you could add a decent dual exhaust system with either no cats or high flow and remap to maybe 410/410. All of this PROBABLY without having to touch the valve springs. Your mapper will be able to tell you if the valves are bouncing and will map accordingly. If you've done a few miles then springs might be a wise idea anyway, but personally I'd not bother with the timing mod unless you then want to go much further.

wessexrfc

4,326 posts

186 months

Wednesday 8th July 2015
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I ran for years with +400bhp (430 from memory) then it happened and my gearbox failed (3rd gear). At this point I then upgraded again and went for the gearbox + oil cooler, clutch, injectors and remap upgrade, now 505bhp. This is how I did it, it allowed me to do it in stages rather than trying to do the whole lot in one go. Hth!!

mgbond

6,749 posts

232 months

Wednesday 8th July 2015
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My understanding is that valve float tends to occur when running 1bar or more. Is that right?

Jarcy

1,559 posts

275 months

Friday 10th July 2015
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Going back to the insurance question, I've just received a very favourable quote from Henderson Taylor, who now use Equity Red Star as underwriter. Their policy covers Agreed Value, 6 track days / year incl. Europe, Spa etc, Low excess ('cept on track), 4.5k annual miles and my mods covered - intercooler & Protechs. I asked what sort of increase a power boost (low 400s) would effect the premium and was told just a nominal increase, if any. A "mod friendly" underwriter. Came in nearly £200 cheaper than Mannings.

Adrian W

13,875 posts

228 months

Friday 10th July 2015
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OP, who is calling your proposed modifications Stage1 ??