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UruguayanGTI

Camshaft ''discusion'' ( And Intorducing My Engine)

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UruguayanGTI

First off all sorry my inglish!!!

 

 

I will resume all i can,

 

I have a 309 gti16, in the past years i have been building it to enjoy it in the city or activities such as track days or drag racing, its not a one thing car, some days i go to work in it.

 

The engine is a xu9j4 (1.9 16v) engine, when i started it was all stock, over the past years i made some changes, forged rods(max speeding), and pistons(iapel) only because i went out of oil and broke it and original parts were imposible to buy in my country and more expensive than forged ones. That forged engine made me buy some other things, like stage 1 camshafts made in argentina by Antelo, an old racing car mechanic that no longer makes racing parts but he had a ''new old stock'' and he is allways available to help young guys that try to build cars. Racing valves, original springs and folowers. I bought 45mm itbs (jenvey copy), custom made intake manifold using meassures from another imported ones and 4-1 exhaust that was in this country and was on a rally car, its that rare exhaust that gives turns and looks weird!! in resume the engine its like this. 88mm crank, 83,3 mm forged piston, std valves diameter, racing valves, stock springs and folowers, 11.2 compresion ratio, stage 1 cams(hydraulic)(10.8mm lift, dont remember duration but not much because they are regrind cams), 45mm itbs, rare exhaust and an Fueltech FT300 (a brasilian computer that is very popular in all america including EEUU) , with this engine i made 200hp on the dyno. it revs 7700-7800 its beautiful to drive it, and didnt lose to much mid range. Here is the cuestion, i want to go a litlle bit more. I was thinking on buying a pair of Kent pt1604 cams, that's still hydraulic, but much bigger duration and same lift. i asume it will give 10-12hp more than this antelo im using.( they are just stock grinded lobe center cams with a bath of some thing that makes them black colored) , what do you recomend?? talking about hyfraulic cams, i will not change folowers for a long time. sorry my english again. And thank you.

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