Car - MK2 nova
Engine - Cav 2ltr 8v sri MPI 115bhp, F16WR gear box.
Mods to engine - Head ported and polished, Valve seats re-ground, 4-2-1 manifold and down pipe, full SS straight through system, no cat.
K&N induction kit.
Im looking to get my ECU mapped and car rolling roaded, pressent from parents for 21st, so got bout £100 to spend.
the problem of high lift/duration camshaft is the fuel injection. If your fuel injection uses air flow meter, you will have a really bad idle, don't will work good. I try it in my C20NE when was N/A, and its don't work good.
Is better if you put bigger valves, vernier pulley(work the cam litle retarded), and work or change the TB for bigger one.
Good chip remaped, with agressive ignition advance and litle more richer mixture, will add some horsepowers too.
See what things were different on the SEH engine and add them to yours. The pistons and cam will need changing and there may be a difference in the combustion chamber.
Not much point changing them it wont do anything. If its from an sri its a 130 not 115.
Cam will be good it just depends on what one you want mild or high. The higher you go the more the idle will suffer as the ecu doesnt know how to fuel it properly.
You'll need more than a 100 squid if you want more gains.
well i had a CR box on and took it to gear box specialist and asked for a CR box and they fitted WR, so annoyed but at least my car moves so im not bothered with it as my car is running, as ive had so many problems with it.
cam on it's own odders ain't gonna give the extra 15 bhp, need sthe pistons changed to the seh ones as they have a smaller dish to up the CR. also need the ecu too. different map.
with everything else you've done it should if the engine is in good nick bring power up to around the 145 mark
btw the 2.0 heads are the same wether or not they are fitted to the seh or ne
to turbo you'd need a smallish turbo unit, a t3 would be more than ample. then you'd need to get it mounted on the exhasut manifold. this can be done by buying a new turbo manifold suited to your head and turbo or making up an adaptor from the cast manifold to take the turbo. then oil and water feeds and exit, not much hassle there. boost pipes and a decent intercooler, rising rate fuel pressure regulator and basically thats it apart from tidying things up for neatness, maybe a set of 16v injectors would be a good idea aswell. i've seen it done with good results, low boost obviously. if you watd to up the boost a bit you could always use 2 headgaskets.
to turbo you'd need a smallish turbo unit, a t3 would be more than ample. then you'd need to get it mounted on the exhasut manifold. this can be done by buying a new turbo manifold suited to your head and turbo or making up an adaptor from the cast manifold to take the turbo. then oil and water feeds and exit, not much hassle there. boost pipes and a decent intercooler, rising rate fuel pressure regulator and basically thats it apart from tidying things up for neatness, maybe a set of 16v injectors would be a good idea aswell. i've seen it done with good results, low boost obviously. if you watd to up the boost a bit you could always use 2 headgaskets.
Right here goes you say (Re: Tuning a 2ltr 8v sri 115bhp... ) why has an sri seh engine got 115hp when they come with 130hp, have you got an NE or something explain?
I doubt there was a 115hp sri wouldnt see the point. Anywaaay tomorrow check your engine number should a seh. I would cam it anyway or some more porting bigger valves an such. But other than carbs or turbo thats it really
thought it would be hard to turbo the engine aswell with all the talk of proper engine management low comp pistons etc etc (and to be fair this would be the best way of doin it in terms of reliability), but then i saw it done twice on two seperate engines(the cheaper way as i have described above) and its not that much work!! as cost effective option the standard ecu can cope with small amounts of boost and if you follow the basic principles then you should have no problems with it.
thought it would be hard to turbo the engine aswell with all the talk of proper engine management low comp pistons etc etc (and to be fair this would be the best way of doin it in terms of reliability), but then i saw it done twice on two seperate engines(the cheaper way as i have described above) and its not that much work!! as cost effective option the standard ecu can cope with small amounts of boost and if you follow the basic principles then you should have no problems with it.
I agree with Roger. But i prefer use a bigger turbo compressio, because its will keep the healthy of engine in high revs, and will make more power. The price of it, you will have more lag. With .42/.63 turbine, the boost will begin come at 3.000rpm, and with 0.50/.63(my actual turbo), the boost only comes at 4.000 to 4.500rpm..but the power when comes, is EXPLOSIVE.
O lost my last engine bay picture, i will post here a old one, and when i catch the digicam, i will take a new picture of my engine bay with the .50/.63 turbo:
the result of it? well.. i running with alcohol here, alcohol make more power, because you can running in high CR without detonation, but with 1 bar(or 15 psi that you prefer ..) i beat a BMW M3 like a S.Stallone beat in L.DiCaprio.
Put turbo in your C20NE, and you don´t will be disapointed..
niether of those pics work mate, is the C20NE a 8v engine?
So could i fit a turbo to a 2ltr 8v 130bhp?
what kinda cost would it be?
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