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| Group 6 - Engine Engine mechanical, Cooling System, Fuel System, Exhaust, Tune-Up |
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#1 (permalink) |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
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Unanswered: Rebuilding a 1.9 low comp.need advice
Last edited by tekenaar; 05-07-2007 at 03:53 PM. Reason: to-direction, two-number, too-excessively/also. I.9? |
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#2 (permalink) |
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1970-GT
Join Date: Sep 2005
Location: Clearwater, Florida
Posts: 1,237
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Dale, I would follow RallyBobs blueprint.
Nothing fancy, just proven stuff that works in the real world. Maybe angle mill the head. Keep the compression under 9:1 and regular fuel will work. 115-120 HP for a mild RallyBob setup. Read some past posts for some great ideas. Very happy with my motor! Lyle |
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#3 (permalink) |
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Old Opeler
Join Date: Jun 2003
Location: New Zealand
Posts: 5,686
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Don't Shave!
If you use the unmodified 1.9L head and use 2.0 pistons you will increase the compression ratio considerably. There are several Threads on this site about economical engine rebuilds.
1) Greensmurf's 2.0: http://www.opelgt.com/forums/6a-engi...e-rebuild.html 2) OpelDean's rebuild: http://www.opelgt.com/forums/6a-engi...e-rebuild.html 3) Rally Bob's Info - in several threads: Check through 6A Engine Mechanical section and Performance Rebuild section. You need to do some intensive searching.
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GTJim Opel Owner since last Century! Copyright © 2000-2009 J D Henry All Rights Reserved Last edited by GTJIM; 05-04-2007 at 11:33 AM. |
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#5 (permalink) |
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U-2 Driver
Join Date: Dec 2003
Location: Lincoln, CA
Posts: 139
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Dale,
I know you are not going to like this, but I have to say it again. I tried the exact same thing. I even bought my stuff cheap on ebay and such, be warned, even if you go low cost on everything, you will end up spending the same amount you would have spent on a 2.2 from OGTS. And, you will have lots of time into it. If I had to do it all over again, I would have bought the 2.2 and saved my time. was it educational, yes, it was, but not worth it. BTW, I did it the same way R.bob's posts dictate, right down to the 265 pistons. One word, the key to all his stuff, is not the .100CC that you gain in boring the whole thing out, its the head (with the bigger valves) AND the intake. those two things are worth spending the money on. So if you can find a used 1.9 w/ high comp pistons, and slap those other two on, you'd be good to go. One last time, trust me, when you get into a motor, its like Forest Gump says "you never know what your going to get?" Good luck! |
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#6 (permalink) |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
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Good straight up advice.
So If I wanted to skip allot of frustration & buy an 2.2 from opel gt sourse.What would be the cost & would that include everything,carb ,alternator ect .What HP would I gain as well?
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#7 (permalink) |
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Non Civilian
Join Date: Mar 2003
Location: Between Chico and Sac, CA
Posts: 1,596
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If you mean rebuilding the 1.9L "RallyBobs way" as in the 2.4L build, it is much cheaper than an Opel 2.4L and probably the same as a 2.2L. The nice thing about the RallyBob rebuild is the ease and availability of American iron pistons. 305 Chevy pistons are beyond easy to find.
To rebuild a stock motor will cost you about $1000 if you do it yourself. If you want to add larger valves add about another $400. To make it a 2.4L it will add only about $500 to the price. The 2.4L will leave the biggest silly grin on your face.
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Arguing online is the same as racing in the Special Olympics; no matter who wins, you're both still retarded. Last edited by jordan; 05-07-2007 at 12:19 AM. |
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#8 (permalink) | |
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Non Civilian
Join Date: Mar 2003
Location: Between Chico and Sac, CA
Posts: 1,596
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No that will not include any extra engine parts. You'll need a new bigger flywheel and clutch kit because of the power increase, stock just wont handle it.. You will also have to modify the 1.9L intake manifold and thermostat housing, the 1.9L intake, thermo housing and 2.2L head are not compatible. You'll need a new exhaust manifold too, the 1.9L will bolt on but will too restrictive. There may be even more that I missed, the 2.2L swap is not easy as pie.
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Arguing online is the same as racing in the Special Olympics; no matter who wins, you're both still retarded. |
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#9 (permalink) |
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Opeler
Join Date: Aug 2004
Location: Planet Earth
Posts: 502
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Read more about it
Whatever you choose to do, it's best to consult knowledgeable and experienced experts and to do your homework first. Talk to those who've done this before (so you don't have to repeat someone else's horror stories), and consider the history and reputations of all vendors you purchase goods or services from. This will help avoid the kind of a lingering regret which Opel owners have experienced, from buying something at a slightly cheaper price, but getting no (or inaccurate) post-sale technical communication (or having to deal with an outfit that won't warranty their product or work).
Last I heard, the base 2.2 in good used condition, sold for about $1500. (You will need to also consider part modifications or adaptations, and pickup or shipping). An additional resource, are articles indexed on opelgt.com, and here: Engine (performance) Last edited by Anonymous D; 05-06-2007 at 08:46 PM. |
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#10 (permalink) | |
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Project 1450 supporter...
Join Date: Mar 2002
Location: Pleasant Valley, CT
Posts: 7,452
Real Name: Bob Legere
![]() ![]() Provided Answers: 20
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#11 (permalink) |
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Non Civilian
Join Date: Mar 2003
Location: Between Chico and Sac, CA
Posts: 1,596
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Know what I mean, know what I mean? (elbow jab 2X)
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Arguing online is the same as racing in the Special Olympics; no matter who wins, you're both still retarded. |
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#12 (permalink) |
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U-2 Driver
Join Date: Dec 2003
Location: Lincoln, CA
Posts: 139
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I spent north of 2k on my motor because I did not want parts flying when I hit the gas, is it fast............HECK YEAH, but, I think the 2.2 would have been the way to go. oh, 2k is the price i paid, with no repeat services, and buying the expensive parts on E-bay. My pistons were $25 bucks, no joke, but when you have everything machined like it needs to be, take care of the oil system, get the head fitted with the right valves, port and weld the intake, by the time you add it all up, you could have had a 2.2 for the same price, then all you have to do is worry about the intake. If you want education, go for the rebuild, if you want bang for the buck, get the 2.2. You cannot rebuild it cheaper.
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#13 (permalink) |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
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Eh , even Mr. Rallybob is watching !You have quite the following.Wish you lived up here on vancouver Is. I'd get you to rebuild it for me.I'm learning that nothing is easy.It's been along time since high school & rebuilding my 283 for the Chevy 11.So who to look for to rebuild a motor for you.Buick guys, German Guys,Chevy guys . I'm sure no one up here is to familiar with opels . If anyone knows of a good motor guy on my Island here please let me know.Also if boring out to 2.o ,puttimg new flat head pistons.What increase in compression would it give me. I'm not a real gear head yet but I'm learning the basics.Obviosly getting the motor hot tanked & shave the heads not to lower them ,just to make them flat .New hardened valve seats,Larger exaust valves & have the head ported as well. What about the cam ,what kind should I replace it with?..Also should I get the crank retested for balance.So many questions I know . Hope I'm not being a pain . Thanks to all eh. Dale
Last edited by tekenaar; 05-07-2007 at 03:54 PM. |
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#14 (permalink) | |
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Project 1450 supporter...
Join Date: Mar 2002
Location: Pleasant Valley, CT
Posts: 7,452
Real Name: Bob Legere
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Bob |
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#15 (permalink) |
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1971 GT
Join Date: Feb 2003
Location: Trail, British Columbia
Posts: 533
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I had all the head and piston work for my 2.4 conversion done in Victoria. PM me and will tell you who did it and exactly how much it cost - in Cdn dollars no less.
Corey
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2.4 "Legere" Stroker - Weber DCOE45 - Getrag - Compufire - S10 Clutch |
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#16 (permalink) |
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6,000 Post Club
Join Date: Aug 2002
Location: Imperial Beach, CA South of San Diego
Posts: 6,054
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Ron 72 GT 3.4L V-6/T-5/ZF posi - almost done - Just need AC installed. ![]() 75 Chevy monza 5.7L/TH350/Auburn 3.08 posi - Next |
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#17 (permalink) |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
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Eh CDN Opelnut . Yes I am interested in the Victoria gut that did your work . Please email me at daledoebert(at)shaw.ca thanks
Last edited by soybean; 05-08-2007 at 12:29 AM. Reason: email spiders |
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#18 (permalink) | |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
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#19 (permalink) | |||||
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Project 1450 supporter...
Join Date: Mar 2002
Location: Pleasant Valley, CT
Posts: 7,452
Real Name: Bob Legere
![]() ![]() Provided Answers: 20
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Bob |
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#20 (permalink) |
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Non Civilian
Join Date: Mar 2003
Location: Between Chico and Sac, CA
Posts: 1,596
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OGTS does sell Opel 2.4L engines, but they cost about $5000. You can build your own for around $2000 USD. If you do get an Opel 2.4L or 2.2L and have to ever rebuild it, the pistons are very pricey.
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Arguing online is the same as racing in the Special Olympics; no matter who wins, you're both still retarded. |
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#21 (permalink) |
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Moderator
Join Date: Mar 2003
Location: corning ny 14830
Posts: 2,182
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I just called ogts the other day and gil said that they have (3) 2.4l on the shelf ready to go for around >$3k (I don't remember the exact price, it might have been closer to $2500) They have the 16v calibra engine low mileage ready to go with a getrag 240 for $4300 complete with all the efi componentry and the like. Both of these are still out of my budget until I find something with 2 wheels and an engine that goes faster than what I have now.
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1970 Opel GT 1.9 1980 Moto Guzzi V50 2000 Saab 9-3 2.0 turbo 2000 KTM 200 exc STOLEN |
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#22 (permalink) |
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Non Civilian
Join Date: Mar 2003
Location: Between Chico and Sac, CA
Posts: 1,596
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Huh, I just talked to Dennis a OGTS yesterday and he said the pound dollar exchange rate has driven up the 2.4L cost like crazy. Maybe he meant after the ones in stock are sold the rest will cost 5k
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Arguing online is the same as racing in the Special Olympics; no matter who wins, you're both still retarded. |
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#23 (permalink) | |
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'NO,......O P E L..G T!'
Join Date: Jul 2003
Location: Lincoln, UK
Posts: 589
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Mark I used to have an Opel....now i have a collection ![]() 69 GT 2.5 FI, Getrag, Irmscher Big Brakes, LSD, Lowered, 8" & 8.5" BBS RM's, Leather.....ex Dealer Opel Team 70 GT 1.9 Weber, 4 Speed 70 GT 1.9 Twin Weber, 4 Speed, Alloys 71 GT 2.0 Weber, Getrag, Lenk Styling, Alloys 71 GT 3.5 V8 Holley, RHD, TARGA, Leather Recaros 75 Commodore GS Coupe, 2.5 Twin Carb, Auto 76 Commodore GS/E Coupe, 2.8 FI, Auto, Alloys, LSD, Sunroof |
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#24 (permalink) | |
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Opeler
Join Date: Sep 2005
Location: BC canada
Posts: 353
![]() Provided Answers: 2
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Last edited by jordan; 05-15-2007 at 01:43 AM. |
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#25 (permalink) |
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Supercharged 2.4
Join Date: Mar 2006
Location: Oregon
Posts: 619
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"2.4L remanufactured $4893.00 dollars, used 2.4L $2500.00"
Prices above are from OGTS. If you are going to spend that kind of money on your GT, my suggestion would be to go the 1.9 < 2.0/2.2/2.4 route that way you are getting exactly what you want. Just my two cents. |
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