Holden 308 cam timing diagram software

There is in fact an abundance of options and even though we have not often actively promoted the fact that we manufacture camshafts in house, we are setting about to fully detail the technical specs of the many cam lobes and grinds we have developed over the last 30 years of producing camshafts. Its the same timing chain and cam i had when it was a 308. There is no reason today you cannot have sufficient choices of camshaft grinds for your holden v8. Camshafts aftermarket high performance cams racing cams. Ivan tighe engineering use wider lobe centrelines on speedway application, for this reason.

So i rotate it back to where i started and it starts to run smoothly again. It is also an idea to grab a degree wheel and see what rating the cam comes up as this will give you an even better idea of how close teh cam is to right, even if you do not have an adjustable timing set it still gives a great understanding of what is going on. Line up the timing mark on the harmonic balancer to tdc or 0 degrees. Extensive cylinder head modification, bigger valves, lightweight valve train, titanium valves, maximum flow carburetion or fuel injection, racing gas, alky or nitro, magneto or electronic ignition, performance rod and crank assembly and increased engine clearances are required for maximum. Brock b cast 308 heads and intake manifold 304 355 holden. Note the oil filler on the timing gear case this was relocated to the. Ive got a 3070 cam and ive got a feeling it should of been set to 0 or maybe 4 deg retarded. I have the cam in and the crank in and went to put the timing chain back on and the crank gear wont fit on too small. A must for 5 litre engines flat tappet or roller cammed. So do i time it to the 1st, 2nd, 3rd line or so on. Just for your edification, ill go into the whats what on timing on this page, but if you have zero interest in all of the complexities of ignition timing, why its important to how well your engine is running, and why it can be disastrous if its off, you should skip all of the tech talk and simply get out your manual to. The closer the lobe centreline the harder the engine will come on the cam. Ive dialled in quite a few cams over the years, nearly all of them holden v8s.

Im currently building a black 308 into a 355 and have hit a hurdle. Now all of a sudden say 10 months since install running fine when accelerating the fuel pressure drops right off and also as of late the fuel pump has been a lot more vocal for lack of a better word. Aug 21, 2019 ignition timing is tough to understand, but easy to adjust and set. Distributor compatibility holden v8 im looking at setting up the terminator with transmission control on an australian 308 holden engine. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. All the information you need for checking valve timing of your engine is. Holden hk ht hg series 8 cyl 1968 1971 gregorys service. To get the best out of your new combination you do not want bad cam.

Setting the timing on your engine is one of the most misunderstood adjustments, the information on these pages will help you understand and answer all of your questions about ignition timing. Engine engine parts resto kingswood country holden ford. Ignition timing and cam timing explained liveabout. Chev ford chrome oil cap vented twist on 6 cyl v8 rocker engine breather. A close look at dialing in a performance camshaft on a gm holden 308ci v8 motor,i show you how to get true t. An imperial cam gear will not match a metric crank gear. When the motor is on number 1 tdc, the dot on the crank gear will be on the passangers side of the engine, sort of pointing towards the sump. A quick and easy way to check valve cam timing on 308 s with a single pattern cam is to get the engine to tdc on the overlap of no. You count 9 links up the chain and thats where you put the dot on the cam gear. Stage 7 holden 186 202 six cylinder hot comp engine or speedway.

Double row valve timing sets for the 253, 304 and 308 holden v8. To achieve an efficient and safe tuning for your holden colorado engine 2 major type of experience are required. Holden v8 twin pipe thermostat housing water outlet hx hz wb lh lx 253 308. Ignition timing is tough to understand, but easy to adjust and set. To get the best out of your new combination you do not want bad cam timing so we recommend new timing chain or new timing gears, especially for those guys with later engines which will have pollution. Rubber vacuum block off cap kit x4 18 3mm id carby carburetor hose pipe.

Engine engine parts resto kingswood country holden. I searched and found a lot of info about what the cam timing should be, but not something that shows how to check. Setting ignition timing video advance auto parts duration. How to dial in cam on v8 hot street engine youtube. The purpose of this test is to directly compare the relative positions of the crankshaft position ckp and camshaft position cmp sensor waveforms and features. Now i currently have it about 8 degrees and no vac advance at all and have an auto not real responsive and seems to lack a bit of grunt. At slower speeds, a delayed intake closing such as is used with hipo cams will regurgitate lots of cylinder pressure back into the intake, making it possible and desireable to use a much higher ratio.

A quick and easy way to check valvecam timing on 308s with a single pattern cam is to get the engine to tdc on the overlap of no. I have a worked holden 308 which isnt making the ammount of horsepower it should. Through a process of elimination i am determined the cam timing must be out and i need help to identify if the cam timing is right or wrong. A quick and easy way to check valvecam timing on 308s with a single. My other problem is my timing marks on the chain and gears dont match up. So i took the liberty of checking the timing and it was at about 30 degrees. In the cylinder and valve timing diagram figure 1 note that the intake valve begins opening 30, before t.

Cnc machined steel top and bottom gears giving prolonged life as manufactured by rollmaster. Rollmaster holden v8 253308 timing set ec6000this is rollmasters economy range blue or timing sets for most popular models, they are designed to be equivalent or better quality than oem timing sets. Ive got a 6cyl holden red motor 202 hooked up to toyota 4spd manual gearbox and standard diff. So, after looking at several different forums, its hard to gather which is the correct and best way to have timing on a 308. I take it the long line is tdc but what is each other mark represent 1deg, 2deg. It has very low vacuum and low power under load but will rev to 5000 rpm in neutral. We have all of them uptodate and senior technicians using it everyday. If a hydraulic cam is being replaced with a solid cam, the 0. If you have the number crow will give you lift at tdc if you call them. Robert teaches how to align and install a time chair on a small block v8. Im looking at setting up the terminator with transmission control on an australian 308 holden engine. Rip off the drivers side valve cover and check the lift on the intake and exhaust valves on no.

I have just got the boat and the guy that sold it to me said it. This video is intended for entertainment purposes only, not educational purposes. Built the engine 20 years ago and im fairly certain that the crank gear had 3 positions. Hello, i have a worked holden 308 which isnt making the ammount of horsepower it should. Connect picoscope channel a to the crankshaft circuit. How do i set the timing on my 202 red motor answered by a verified au auto mechanic. Bugger can anyone help me out, i have the card for the cam but it doesnt say anything about ignition timing. The timing chains in the engine numbers listed below are prone to stretch.

Home holden commodore related vr vs holden commodore 1993 1997 304 timing marks discussion in vr vs holden commodore 1993 1997 started by jgtoranalc, jun 26, 20. Safely access to your holden engine control unit ecu. Generally stock engines run best with h254, mild motors can use c241, modified motors can use h264 but larger cam choice requires careful selection. Positive stop tdc finding tool either the spark plug type or a block mounted type, 4. This chart from 1965 shows the estimated horsepower that. The distributor of a typical engine has a lot more responsibility than just distributing the spark to the correct cylinder which in itself is a feat. I was wondering if the distributor i have attached will possibly work with the dominator ecu, as there doesnt seem to be a dual sync to suit holden engines. The best place to start is to install your cam on factory marks using the engine. Use manufacturers data to identify the crankshaft and camshaft sensor signal circuits. Timing hot 308 crane 288 cam published by gormz on sun, 06022005 03. I have a holden 308 australian with a sniper efi 550511k kit with the fuel lines and external pump, etc. Holden chrome oil cap breather twist 6cyl v8 149 186 202 253 308 rocker engine. Nov 17, 2009 how do i set the timing on my 202 red motor answered by a verified au auto mechanic we use cookies to give you the best possible experience on our website.

Today i took her out and she started popping thru the exhaust. Level 5 camshafts are designed for fully prepared, high compression, allout racing engines and chassis. The timing marks dont line up on a 308, they need to be 9 links apart. An imperial crank gear will not match a metric cam gear. Holden ford australian v8 engine community aussie v8. To get the best out of your new combination you do not want bad cam timing so we recommend new timing chain or new timing gears, especially for those guys with later engines which will have pollution control valve timing. All rollmaster red label timing chain kits are manufactured from billet steel for both the camshaft and crankshaft sprockets.

Our engine compatibility tool is to be used as a guide only. We take an indepth look at the history of holdens aussiebuilt v8 and the many. In used condition, b cast or brock heads ready for reco, the pair of heads have a few stuck valves, the manifold will likely needed to be welded up around the front water ports, and helicoils on thermostat housing. Rip off the drivers side valve cover and check the lift on the intake and. I have just replaced my old crane 288 cam in my torana, with the same new crane cam, and i did not remember to check the setting. A few months ago when we did the heads we couldnt get the car started so we moved the timing until it started and left it there. I got these advisory items with recent mot, 001 nearside front suspension arm ball joint dust cover deteriorated, but preventing the ingress of dirt 2. May 03, 2016 robert teaches how to align and install a time chair on a small block v8. Belmont, kingswood, monaro, premier and brougham models are included. Camshaft selection is extremely important in 253 engines. Cam timing, and in particular the intake closing event has a huge effect on cylinder pressure and therefore compression ratio selection. Rollmaster holden v8 253 308 timing set ec6000this is rollmasters economy range blue or timing sets for most popular models, they are designed to be equivalent or better quality than oem timing sets. Shipping is calculated by size and weight in the check out section when you enter your address.