GSi tuning

[Nova_boy_69]

How can i tune and modify my GSi engine that will gain more power and so i can get away without telling my insurance.

[Dpnova]

Its up to you to tell ur insurance anyway ut if you mod ur enhine id recomend telling them,

[Ben3042]

Camshaft
Rebore
Chip

Basically mods that arnt noticable unless the engine is dismantled. So if you have an accident the insurance estimator doesent see them when he inspects your car.

[Will]

How can i tune and modify my GSi engine that will gain more power and so i can get away without telling my insurance.

not a good idea imo but working on internals is best for this "method"

[Ste_Nova]

nos

[Nova_boy_69]

How much would it roughly cost to get it bored and replace the pistons, and how much power gain would i have?

[mikeoxford]

you dont particulary gain from having a bottom end build. not in power terms.

only in the sense that a 100 bhp nova gte/gsi engine is probably thrashed and only putting out about 90 BHP for example. so a rebuild will give it its full potential of what is capable of.

a rebore lowers compresison.

you might get a litte more poke from an increase in capacity i can imgaine, but nothing to write home about.

would be worth doing to a tired old engine though

i paid ?180 for rebore and lots of other bottom end work including rebore, new pistons, fitting new pistons to conrods, new gudegon pins. all new big end little end bearings, crank polish, and more i cant think of right now. got all the receipts.

mike

[mikeoxford]

new rings and oil pump also

[MC]

A rebore raises compression.

MC

[Will]

you dont particulary gain from having a bottom end build. not in power terms.

only in the sense that a 100 bhp nova gte/gsi engine is probably thrashed and only putting out about 90 BHP for example. so a rebuild will give it its full potential of what is capable of.

a rebore lowers compresison.

you might get a litte more poke from an increase in capacity i can imgaine, but nothing to write home about.

would be worth doing to a tired old engine though

i paid ?180 for rebore and lots of other bottom end work including rebore, new pistons, fitting new pistons to conrods, new gudegon pins. all new big end little end bearings, crank polish, and more i cant think of right now. got all the receipts.

mike

thats cheap michael, friend of a friend?

[peester]

get cylinder head done; looks no different. b+ pack from bill is the top job.
i don't reckon youde need to tell insurance; at the end of the day its reconditioning a part. plus it paves the way for other mods; cam, exhaust etc to benefit furthermore.

[Will]

you shoulds tell the insurance as the 1mm bigger inlet valves do give a performance increase of 14-15% so yes thats an issue, whether u choose to tell them is totally up to you at the end of the day..........

mr mondeo insurance wont even know wot ur talking abt when u tell him you have bigger valves in your head, pmsl