Forum: Opel Engine Performance Modifications

I was trying to figure out where to mount this gauge in the car and not make it look "stuck on" so this is what I did. This gauge was part of my purchase of the Mega Squirt EFI kit. I took an old clock and using a dremel with metal cutting abrasive blade and cut the back off. Using a 2" hole saw...

Finally got some time this morning and removed the 'custom' turbo setup that was in my 71' GT. Took a while due to the tight fit and weight, but it's all out and ready for a stock intake/exhaust to be put in. Here is a bunch of pictures since I know there was a bunch of you that was interesting in...

It was an open house at my school today and i was incharge of running the dyno. I put the GT on it just for fun and it wasnt what i expected but o well.. it was fun to do it low comp 1.9, Cam techniques camshaft, weber, header, crane ignition. ...pulled from 2500-6400 RPM 1st run: 70.23 HP...

I have been searching for raw technical information on an Opel 1.1 and cant seem to find anything no matter what I search for. Can anyone tell me or point me in the right direction please. I am planning on a Hp daily driver build here but I am still in need of some information. Information like the...

So I have a 2.2 FI in the stock configuration as sent to me by OGTS. what are the recommendations for improving the intake, and the exaust within the limits of the stock computer. I have a 1.9 header but think I read somewhere that it would not be the best for this setup. I would like to get the...

Just looking at all the options to raise compression of my '73 1.9L motor. While plodding through some related Yahoo ClassicOpel keyword searches I came upon some info on using a 1.5L head on a late year engine to bump up compression. I think it was mentioned doing this could get close to the...

Hey everyone, I just aquired a 74 manta automatic and am in the middle of installing a crane xr700 ingnition. I am wondering how you are supposed to find tdc for piston #1, I aligned the timing mark on the fly wheel by moving the fan but it sucked, I can't figure out a good way to get a socket on...

I am assembling a spare race motor. The pistons I have sit .007" above deck and the block has never been touched. I do want to do a touch up cut on the block to make sure it is true. That should put the pistons approx .008" above deck. Given that a crushed stock felpro head gasket is about .032"...

HI to all.Does anyone have encouter this.The rod bearings of the 2,4 engine have a hole to pass the oil but it is not in the same point as the hole in the 2,4 rod!!!I have made an extra hole in the bearing to to match the hole on the rod.Is this ok????Plus i have won a nice pair of BMW rods from...

:D I’ve been taking this machine shop class at the local junior collage and one of my projects was to try to fit some roller hyd lifters to an Opel Head The instructor suggested I practice on a Junk head before trying to bore the lifter bores out on a good 2.2 head So in comes this head...

Anyone using this program anymore? Performance Trends - drag racing circle track road racing engine suspension software One of the old timers came into the shop today and I handed him my readout. "Magic Engines" he goes by the first name of Johnny" I was busy with a paying client at the time so...

Im from South Africa and take part in stockcar oval track racing.I would like to built a relaible engine with good performance. The engine need to rev 8500rpm and dont exceed 2.1 alot have tried to built motors with mercedes rods but it does not last what rods can we use to make the bottom end...

Hi to all, I'm planning to use these pistons for my next CIH, Are the forged ones good quality stuffs? Hypereutectic are cheap but is it better than Opel OEM? Thanks for advices, Hiro

Hi to all, Comparing cam profiles is not always easy for me... US specs & Europe specs are different, Some official data are wrong, Actual measurement may vary from advertised ones etc. So when I build my race CIH I get confused for choosing the right camshaft, And ordering a custom cam is...

i want to know where i should be careful when i port my 2.4 head ( very basic porting) i read a reply once but i can't find it...

Hi to all, I guess this topic comes regularly in racer's discussion both sides of the pond? Assuming the spring choice/quality is OK & fits cam profile etc, What can we do to prevent spring breakage during racing? Replacing the whole spring set every winter is not what I want to do! Some...

In reassemblng my 1.9 to 2.4 conversion, the advice is to use a 2.0 head gasket, which I do have. However, since none of my pistons are above the deck at TDC, and in fact the piston tops are beveled at the leading edge, I wonder if I should just use the 1.9 gasket. The 1.9 gasket is basically...

hi there, i got my 2.4 engine back from the shop but i have some problems... ( its a 2.4 so 2.0 and 1.9 etc won't fit people told me ) ARP seemed to have stopped with the rodbolts for the 2.4 cih engine so i don't know who else produces them... another problem is the camshaft bearings......

...with a fast street/strip cam, which is better for pwr and performance...dual side-drafts or Fuel Injection? I know side-drafts will be better for drivability compared to FI that will have uneven idle at low rpm, but will the FI not give better performance and pwr in the end.

HI to all.I know that this foroum is working mostly on the 8-valves cylinder heads but i was wondering if you can help me in a few questions from things you might saw in another foroum or around the net. One friend of mine took the 3,0 24v head and convert it to the CIH16V so it can be used on his...