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Engine, Exhaust & Gearbox ECU chips, decats, cam kits,

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Old 27-12-2017, 05:39 PM   #1
Shiiv
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1,3 Head tu5jp4 block 645 cams.

Hello.

befor my question I m shiiv i m 26 from portugal i drive/have a 1.3 rallye ,a 1.3 xsi (portuguease xsi 1.3 its the same tu2j2 alloy engine from rallye s1 with xsi extras) a 1.5 xad (currently in restore fase) and a 1.6 16v engine and shell moded rallye s1.

My question goes to my 1.3 tu2j2 xsi. i m currently changing the block to a tu5jp4 from a c2 vts , and i want to use the 1.3 head (A 2j2) with 645 cams.but:

Anyone as does this? what valve clearence do i have in std? if anyone as done this how much and where i need to chop on the piston head if the clearence is minimal?

i havent done the clay method . just wanting some info beforhand.

ps: english aint my first/main language, dont mind a few mistakes here and ther

ps2: 106 parts aint a problem here in portugal, and since we have 1.3 xsi's there are alot of heads/13x59G.b blocks etc for cheap here. so i dont mind try and error till i got it but i dont want to damage a brand new camshaft with a bended valve :S
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Old 28-12-2017, 07:14 PM   #2
matateotolo
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melhor bloco para isso é o 1.6 nfw dos 1.6 8v, esse perde compressão por causa dos pistons serem saidos...
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Old 29-12-2017, 02:38 AM   #3
Shiiv
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actualmente o que está medido está entre 11.3:1 e 11.4:1 :| (foi calculado volume cilindro TDC LDC e volume CC's da cabeça antes de montar). junta gti/cup 1.2 mm cabeça e bloco faceado em retificadora. (cabeça/admiçao 1.3/borbuleta trabalhada), motor ainda nao trabalhou, (está fora) pois tenciono montar catcams 645, molas e chapeus (ainda por adquirir) e (ja adquirido) um voltante motor mais leve (200mm, 3.3kg) e jogo completo de polies aluminium)

Original no 1.3 tu2j2 10.2:1 . do NFU 10.8:1 .


é a 1 fase NFU pistons lisos (10fx21). em TDC ficam completamente a nivel da face do bloco.
.
Mas a questao nao é essa. é mesmo cams 645 da catcams o quanto vou ficar de margem com a valvula aberta em TDC.
Antes de comprar as cams queria saber isto para saber quanto e onde tenho de cortar no piston. (depois disto devo ficar na casa dos 10.x:1.) se alguem o fez , recomendaçoes para onde e quanto cortar)



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English: the question here is: if anyone befor with a tu5jp4 block with a tu2j2 head using catcams 645 how much valve clearence did it have and if i need to cnc the piston for valve clearence how much and where do i need to "chop"
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Old 31-01-2018, 02:56 PM   #4
Mendez
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Boas.
Olha que há topicos sobre isso... já li algo sobre isto por aqui. tenta procurar.
Eu li algo do genero porque andei a procura de soluções para meter molas valvula duplas, e queria saber se metendo outras 8 de origem dentro das que la estao, resultava... e acho que alguem depois comecou a falar da cam 646... etc.
Supostamente essa cam é plug and play... os internos originais aguentam, pelo que vi no site da catcams.
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