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Byron, Than you for the compliments. They make the effort worthwhile.
I am getting ready for a trip out west, despite the World Finals being rained out for the second year in a row; and when I return, I will try to answer your thought provoking questions then. I want to think on them a bit.
Stealth, you have important documentation that's very much lacking on brickboard. i've maintained my 86 quite well up through 284k miles (and still going) and covered brickboard and other sites thoroughly, but i've only come across your website now. it's commendable that you've maintained your website and i've gained invaluable insite on something i haven't had to work on so far. the irony is that since these volvo heads are so well designed, then one usually doesn't have knowledge about head failure. this leads to a question: how would i know when my head might need servicing? i have within specs, even compression in the cylinders, but i would like to consider preventative maintenance. also, do you only take on projects only or do you do accept heads from across the nation.
thanks very much for sharing your extensive experience with us all and it is certainly extra effort for your annotation along with your superb, high-quality photos. it sets an example for us all. kind regards, byron golden sugar land, tx
Thank you, Josh, for your kind words.
Going with an L block for your '88 would be an excellent upgrade: you'd have both the piston cooling and the meatier 13mm rods.
Going larger exhaust system diameter and upgrading to a 90+ manifold will give you even more power when you raise the boost. 3inch is the way to go, if you haven't done it already. Your turbo will love the reduced backpressure.
Your detailed recordings of what you've done with these great engines and cars is very much appreciated by myself.
I'm looking at a 95 230ft "L" block to swap into my precious 88 gold 740 sedan. Right now I'm playing with the ca, overboosting it to 12psi with the proper tuning and guages...being very cautious throught the whole process. I can't say I've had this much fun for a while! Gotta love $1000.00 volvos that need a headgasket job. The Previous owner was more than happy to take my money after spending $15,000.00 CAN at a local mechanic over 5 years. That mechanic is getting ready to retire, some of his choices in repair were questionable. No offense to the mechanic trade on your part.
I've just bookmarked your site, and will use it qhen the swapcomes in. The info on oil squirters was really helpful!!
I'll be back to visit and comment.
Josh in Saskatchewan - - known as jsaw on www.brickboard.com
You're welcome, John.
The two starting points for your project, a B21FT motor, and LH 2.2, are very good choices. Both have quite a bit of potential.
Thank you for your kind words, and for your interest.
I've been reading your material on engine modifications and underlying theory on Turbobricks. It's facinating. My interest germinated simply as the desire to see how I might make my '93 245 handle well and have reasonable power while having good engine manners and fuel economy when driving sedately. I though perhaps a B21FT, LH 2.2 project core would be a good place to start looking and stumbled into your posts. Amazing. Thank you for taking the time and trouble to post the distillate of an enormous amount of experience and knowledge. I have much more to read but it's thrilling to get a glimpse of how to go about building a refined, long lived and powerful engine as opposed to more crude methods and "bigger hammer" approaches.