hi ,

does anyone know where you can get a reground camshaft for a tp magna with efi or carby.

i can get a new one from crow cams but they cost around $300.

thanks, damien.

just get the cam u have now reground. i got mine reground for $140 (was $120 and $20 shipping cause i had to send it to brisbane to get it done). i got this done at a repco machine shop and the specs were from the crow cams website. (lift, duration etc.)

droping a mild cam in efi will this screw with fuel map etc? i was looking to do this real soon but im already trying to find out whats causing my tp efi to run lean under 3k rpm :confused: with some luck ill have it solved this weekend

got the spec on the cam handy i have another cam here that i could get done with minimal down time you where saying somthing about sigma tapets also?

pete

Sigma tappets are the same as Magna tappets but Sigma ones are adjustable, whereas the Magna ones automatically adjust themselves, the advantage of having Sigma tappets is so when you DO get a new cam, you can adjust the tappets to suit, as the Magna ones may not adjust to the cam (depends on cam). :cool:

droping a mild cam in efi will this screw with fuel map etc? i was looking to do this real soon but im already trying to find out whats causing my tp efi to run lean under 3k rpm :confused: with some luck ill have it solved this weekend

got the spec on the cam handy i have another cam here that i could get done with minimal down time you where saying somthing about sigma tapets also?

pete


how do u know its lean?

basicly pinging down low had a machanic check it by conneting some meter to the oxi sensor and checked timing also, timing is spot on its a mix problem the machanic confirmed it.
see http://www.aussiemagna.com/forums/showthread.php?t=14491
i changed the sensor and reset the ecu to stop it from using the default fule/air setting seemed to be ok today ill check the ecu for codes tonight, so i take it mild cam is fine with efi

pete

did u not reset the ECU wen u first put the cam in?

when you do a serious mod to ur car (like a cam) that is going to effect air/fuel ratios u should always reset the ECU. it's just like a tune with a haltec or motec or something. wen u add a mod u want the most out of it so u go back to the ECU to tune.

sigma adjustable rocker gear is much better in the long run. u can adjust them wen u want and wen alot of power is added (turbo etc), apparently they won't bleed out at high revs. (this is wat ive heard) the magna rocker gear is fine with a cam and you won't have any problems with it. its just wen u start adding the power that the magna rocker gear fail.

Brendan, learn to read....he HASNT put the cam in yet...DUH....

TM-SE-RED .. what spec did you get your cam ground too?

http://www.crowcams.com.au/templates/Catalogue-Sigma-OHC.shtml

VALVE TIMING - IN.23/57
EX.59/21

DURATION - 260

.075" DUR. - 205

VALVE LIFT - .450"

POWER RANGE - 2000 - 5800

COMMENTS - Mild cam for use in engines with hydraulic lash adjusters. To april 1991



AF - my bad bud

cheers for the info, my lean problem < 3k is fixed turnes out 1st oxisensor was ****ed as we left the 2nd one in but didnt reset the ecu :confused: so the ecu stayed with the fail safe fuel map even tho the oxisensor was now reading correct, did an ecu reset and all is happy gave it a few squirts on they way home from work same exhaust note as > 3k rpm no pings and more go baby down low.

I also used one of these to help diagnose the exhaust gas reading, if your in the know the kit is easy to put together https://secure2.vivid-design.com.au/jaycar/productView.asp?ID=KA1758&CATID=&keywords=&SPECIAL=&form=KEYWORD&ProdCodeOnly=yes&Keyword1=K&Keyword2=K&pageNumber=&priceMin=&priceMax=&SUBCATID=

Cam is tempting i got a few machanic friends i know ill see what it will cost me :)

pete

cant go wrong man, its only 130 bucks or something and is pretty cool, car revs out alot better.

fitting is fiddley with the mongrell lifters but use a bit of tape to hold them in and your right.

brendan i didn't really think about it but your motor could have been a EFI one for all we know because they are all identical, therefor proving that the cam works in the efi motors

only difference is the head has like 14cc more in it or so. only thing i was worried about with the EFI was ECU related. and the fact that Crow Cams themselves said that a mild cam from them will not work in an EFI magna.

so will it or wont it work? confused now :D

Yes, it should work, now get your ass out there and buy one :P :bowrofl:

well your must likely going to have problems if its efi unless you either get a piggyback or a replacemnt one

depends who you ask i guess :) spoke to somone in the know and they seem to think as long as i dont go past mild spec the stock ecu should adapt fine he quoted me $50.00 to fit it as he owe's me a fav or 2, went to repco to get it priced and they dont do it local they suggested a local engine builder here and ive seen this guy do some great work also ive seen alot of dodgie **** by him also might shop around, ordered a K&N filter in bursons today instead as one i have i feel could be better, cost me $120.00 but wont have it untill wensday as it has to be ordered or somthing not bad considering repco quoted me $140 and autobarn had NFI all i got was why its a magna i said care to come for a lap round the block and say that? :rant: ****ing ****s me when people are like that, didnt goto supercheap as i feel the staff have no clue about that kinda thing most the time .

why wouldn't it work? they have an airflow meter for a reason? unless with a cam the instuments go off the scale :doubt:

why wouldn't it work? they have an airflow meter for a reason? unless with a cam the instuments go off the scale :doubt:
ive been told from enough people that gen1 ecus are **** and arnt very tolerable to any thing which is so true, ive been told that a minor change to the cam might be ok but any thing major and you out the window but i guess you can be our gini(sp) pig :D

Ill let the wife forget the price of the new filter 1st then ill see how we go :) she asked why i need to spend so much on an air cleaner i replyed "it makes me swear at it less" :bowrofl:

Pete

Ill let the wife forget the price of the new filter 1st then ill see how we go :) she asked why i need to spend so much on an air cleaner i replyed "it makes me swear at it less" :bowrofl:

Pete
trust me when i say ull love the new filter i remember when i put mine on i was over the moon and pleased that it was money well worth spent plus the fact you can reuse it SO many times

thats how i justified it with her the valvoline filter for the 2.6 was $60! in supercheap thats just nuts so in < 12 months it will pay for itself.

pete

my mates uni is broken already, the glue they glue the sock together with is useless. get a K&N if possible

ive been told from enough people that gen1 ecus are **** and arnt very tolerable to any thing which is so true, ive been told that a minor change to the cam might be ok but any thing major and you out the window but i guess you can be our gini(sp) pig :D


yeah ive also heard the 1st gen ECU's are pretty weak and can die easily too? wen played with that is. they fixed this in the TR/TS.

yeah ive also heard the 1st gen ECU's are pretty weak and can die easily too? wen played with that is. they fixed this in the TR/TS.
yep but from what i have heard the 2ndgens ecu was worse then the 1st gens due to alot of falts with the parts in the box but you have to understand with this motor it was one of the 1st efis, plus the fact they adapted it to a carby designed motor... plus the fact mitsi made it so it bound to be crap
:bowrofl:

Well i tryed to put a tn head with tn cam(carby) on my tp(efi) and it wouldnt even fire, so i figered it must have been the cam, so i put the tp cam out of my other cracked head in, stated first crank

so i dont think the ecu would handle a mild cam too good

Well i tryed to put a tn head with tn cam(carby) on my tp(efi) and it wouldnt even fire, so i figered it must have been the cam, so i put the tp cam out of my other cracked head in, stated first crank

so i dont think the ecu would handle a mild cam too good

you stuffed the ign timing up, bet my life on it. 180 degrees out will cause the car to not even think about firing.

well if cam is no go or a huge maybe how would we go shaving the head? i read somewhere that porting is a waste of time as these heads flow rather well

pete

you stuffed the ign timing up, bet my life on it. 180 degrees out will cause the car to not even think about firing.
well your dead then, i know how to time a car, iv done it too many time's

sorry to bring this back up :D but has ANY ONE done this since the last post??:doubt:

can a efi gen1 have a mild cam done on it successfully ?