110bhp out of a VTR

[Elliot17]

wouldnt bigger exhausts actually lose torque? as you lose back pressure? I suppose its about finding a compromise..

[leeds106]

not really as the standard one is quite restrictive


plus all performance made exhausts are designed to work with that car ie. magnex etc


powerflow stuff could lose you power as there just a random pipe made to fit the car

[vtrlad]

What type of exhaust do I need to get it through it's MOT with the standard cat back on?

The MK2 exhausts seems a lot more expensive than the MK1.

[Elliot17]

haha yep 2 posts why not!
ye that makes sense actually, so 2 to 2.5" bore is about right im guessing

[Elliot17]

any exhaust should get it through its MOT vtrlad as long as the cats on and working

[leeds106]

if you fit a magnex or simlilar to your engine it will pass the mot cos unlike the older 90bhp vtr engines the cat is in your manifold so unless you remove the manifold to fir a 4 branch you will still have the cat on your car and as such it will pass the mot

[vtrlad]

I do want to decat it though so whats the best way of doing it?

Keep the standard exhaust and manifold and but it back on?

If so I only need a mk1 exhaust then right?

[leeds106]

no MK2 exhaust as the hangers are slightly in different places if i recall


and a 8v manifold

[vtrlad]

It's like there is a £100 difference between MK1 and MK2 exhausts.

Just because of hangers?

[vtcarl]

with a manifold, decat, center section, b/box and a decent enclosed you should see in my opinion around 10 bhp give or take a couple. then theres your car, is it the 90 or 98 bhp version? and also they do have different power outputs from the factory like it has been said before on here. condition of the engine is imprtant too, has it had a good service history? stripping the interior is a good way to help increase the acceleration, be it very minimal plus it is a free mod. i think the 3 plug version of the vtr is harder to remap than the single plug version. if money is not a problem then look at getting a good cam and head work done. then get a remap done. other alternative is go for the vts conversion, can be done for less money than getting all the work done on the vtr engine. but thats my opinion mate.

[seankc08]

i know a quick and very cheap way of gaining bout 7 bhp
haven't put mine on yet but my step dad was a mechanic back in the day and said that it does work as him and his mate had one on their old school cosworths lol. pm me to find out or just ask and i'll post it lol but no laughing at me

[Elliot17]

basically to decat you need a new manifold, raceland would be the one
the buy a supersprint exhaust or similar, you will need a manifold back system for your car
then come MOT time you will just have to put your standard manifold back on, you can keep the aftermarket system on though. Hope this helps!

[Elliot17]

seankc does it involve shoving a crowbar into he cat and breaking up all of the metal and just emptying it out?? problem with doin that is that come MOT time you wont have a cat to put in and so cant pass! im just guessing this is the method? post it anyways

[seankc08]

not interested then anyone. no

[vtrlad]

@ VTRCarl.

Yea the engine is in pretty decent condition. Has been serviced on time every time since new. Its on it way towards 65k, cambelt has recently been done along with water pump and tensioner so i'm fairly confident the engine is healthy.

Insurance on a VTS for me is an extra £100 a year so engine transplants won't happen as it would be cheaper for me to get an VTS.

[seankc08]

oh no lol sounds quite good tho lol
what i mean is getting a resistor chip and setting it all right for the car
on a saxo i've heard it gives 7 bhp but more on other cars and less depending on vehicle obviously.
what it does is basically lies to your car and makes it think it is taking more cold air than it actually is which means that it adds more petrol and off you go.
not sure if he said if it works with a new cold air feed kit tho. may work better as is getting even more cold air
only thing is that it uses a lil bit more petrol. what ya think

[vtrlad]

Originally Posted by seankc08

oh no lol sounds quite good tho lol
what i mean is getting a resistor chip and setting it all right for the car
on a saxo i've heard it gives 7 bhp but more on other cars and less depending on vehicle obviously.
what it does is basically lies to your car and makes it think it is taking more cold air than it actually is which means that it adds more petrol and off you go.
not sure if he said if it works with a new cold air feed kit tho. may work better as is getting even more cold air
only thing is that it uses a lil bit more petrol. what ya think

Won't the car over fuel and fail emissions then though sean?

[titchster]

So by making it think its getting more cold air, it adds more fuel? Making it over fuel....Not what you want. Which is why people say the resistor chips off ebay are shite.

Best mods for a VTR engine already been mentioned.

Ind. kit, mani, decat. Then onto cams, headwork, etc etc...

[seankc08]

doesnt really matter as you only fit the pump between the sensor for the air feed which means u can put it in and out at any time and seriously only takes 5 mins to fit not even that.
spose it would tho yeah. works better on a warm day too so is better now the summer has finally arrived lol. better late than never i suppose

[seankc08]

may be shit but it does work. if you want extra bhp. i know over fuelling isn't great for the car but as i said in and out whenever you want