De-Catting Chimaera
Discussion
This subject is very misleading, in some cases cars have picked up 40 bhp through chipping and de-Cating etc but this was because there were serious defects ie blocked cats or injectors the wrong chip etc if your car is healthy and you de-cat expect a few bhp, i would leave the main cat though.
Tim
Tim
Aha... but here's the thinking. The car is 1994, now's not a good time of year to sell and the rest of it, apart from the bloody water getting in, is great. So I spend less than £2k getting it chipped, decatted and Nitron suspension fitted, or I lose more than that on the trade in with a dealer or wait 5 months until I sell it privately.
And it will still pass the MOT if it's taken to the right place. And let's face it, if a serious race techie can't get an extra 40bhp out of a 4 litre engine when they can get 150bhp out of single litre bike engine...... maybe he should be looking for a career change.
>> Edited by K3NJW on Wednesday 4th December 15:22
And it will still pass the MOT if it's taken to the right place. And let's face it, if a serious race techie can't get an extra 40bhp out of a 4 litre engine when they can get 150bhp out of single litre bike engine...... maybe he should be looking for a career change.
>> Edited by K3NJW on Wednesday 4th December 15:22
K3NJW said: And let's face it, if a serious race techie can't get an extra 40bhp out of a 4 litre engine when they can get 150bhp out of single litre bike engine...... maybe he should be looking for a career change.
>> Edited by K3NJW on Wednesday 4th December 15:22
With enough time and money, anything is possible. No doubt another 40 BHP can be got from your engine. Personally I reckon it would take major mods, I would budget £100 per BHP so you are looking at quite a few grand on the engine alone, and it would certainly be more cost-effective (and give a better end result) to trade up to a larger capacity engine, the cheapest way to do this is arguably to trade the car in. Not saying don't do it or you shouldn't do it, just suggesting there is a discrepancy between what you're proposing, and the gains you're expecting from it.
Mr Freefall said: Graham
What cats did you take out and what chip did you have it replace with?
All of them,
TVR Power supplied a special decatt chip.
but even thats gone in the bin now and been replaced with a programmable ecu, which if i ever get my lap top back i will play with...
Im not totaly convinced with the just buy a 5ltr car, as ok a 5ltr chim is cheap but you've firstly got to sell you 4ltr then carry over any mods, and then the new car will lose money faster as its newer... and then there is the colour interior combo to worry about etc etc...
but then im biased cos i've modded my car quite a bit...
and have you seen the price of a brand new balanced 4.6 engine almost nothing mmmm while stocks last..
[thread Hi-jack mode]
The chassis has been rebuilt with new suspension and new dampers and rear suspension mounts.
the gearbox casing has been replaced and is now sat waiting to be bolted to the engine and dropped back in the chassis this weekend.
the body shell is sat 20 miles away with pops trying to stick it back together.
which reminds me i need to find out where my new spoiler is..
then its body back on, new seat mounts, new sills and richard is going to take it testing and set the suspension up before the end of the year erm.....
[/Thread Hijack mode]
The chassis has been rebuilt with new suspension and new dampers and rear suspension mounts.
the gearbox casing has been replaced and is now sat waiting to be bolted to the engine and dropped back in the chassis this weekend.
the body shell is sat 20 miles away with pops trying to stick it back together.
which reminds me i need to find out where my new spoiler is..
then its body back on, new seat mounts, new sills and richard is going to take it testing and set the suspension up before the end of the year erm.....
[/Thread Hijack mode]
4 litre is around 200-210 real bhp. 5 litre is around 260-270. That means that you will need to spend mega money to get to a good 5 litre and then there is the question of suspension and brakes. And it will still be a 4 litre that had been modded which could well be very hard to shift.
Yes you can get another 40 bhp but I hope you have deep pockets as it is not as simple as de-catting. www.t-v-r-services.co.uk have some power curves for various engine mods that I have done. In the end it worked out cheaper to have a bespoke 5.2 litre built. I don't worry about power anymore just the rest of the car and whether it will hold together!
Steve
www.tvrbooks.co.uk
>> Edited by shpub on Wednesday 4th December 17:27
Yes you can get another 40 bhp but I hope you have deep pockets as it is not as simple as de-catting. www.t-v-r-services.co.uk have some power curves for various engine mods that I have done. In the end it worked out cheaper to have a bespoke 5.2 litre built. I don't worry about power anymore just the rest of the car and whether it will hold together!
Steve
www.tvrbooks.co.uk
>> Edited by shpub on Wednesday 4th December 17:27
Demand for Rover engines should be increasing - flog it and get a Chevy 5.6!
www.chevroletls1.com/index.htm
www.chevroletls1.com/index.htm
Well,
just had my 4.5 de-pre-cat'd, already has sports exhasut on, and a Mark Adams chip.. soo..
lets see how that goes now
running v.lean atm so am confident that ones Marks tickled it, it will be up on the 253/270ft/lbs it was giving before..
and then, gonna give some Carbon Fibre trumpets a whirl (or should that be swirl :P )
and see if that kicks the car some more...
Let you know after tuesday
just had my 4.5 de-pre-cat'd, already has sports exhasut on, and a Mark Adams chip.. soo..
lets see how that goes now
running v.lean atm so am confident that ones Marks tickled it, it will be up on the 253/270ft/lbs it was giving before..
and then, gonna give some Carbon Fibre trumpets a whirl (or should that be swirl :P )
and see if that kicks the car some more...
Let you know after tuesday
All interesting and valid comments.... but I like the car I've got, I would just like it to go a bit quicker and handle a bit better, hence the thoughts about decatting and Nitron suspension. If I trade it against a 5 I could end up with a whole new set of problems to fix and have lost money on the trade in. It's going to cost me a couple of grand to have done what I want, I reckon I'd be lucky to get £10k for it against a 5 which is going to cost me the best part of £17K for a semi decent one... a £7k outlay. Now what could I get done to the car I've got for that sort of money.... see the dilemma. Anyway, I reckon I'll get it done, I'm a sucker for impulse decisions, otherwise I'd be driving a Volvo and be an accountant!!
To get 5 litre performance and braking etc and everything else is closer to £7k than £2k.
Pete is right in that BHP costs around £100 per bhp but on top of that is all the other stuff that will be needed to satisfy the insurance companies like brake upgrades etc. In the end of the day the car will not be worth anywhere near what you paid for it and you will have lost money on it anyway.
It all depends on what you want to do. Tune your current car and fine. Try and make it into a 5 litre forget it. Trade in the car right now.
Anyway it is your call.
Steve
Pete is right in that BHP costs around £100 per bhp but on top of that is all the other stuff that will be needed to satisfy the insurance companies like brake upgrades etc. In the end of the day the car will not be worth anywhere near what you paid for it and you will have lost money on it anyway.
It all depends on what you want to do. Tune your current car and fine. Try and make it into a 5 litre forget it. Trade in the car right now.
Anyway it is your call.
Steve
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