lookin at getting a q-j ref book - and lookin over Cliff's and one by Roe i think it was . about the same info more or less or a big dif in information ?
I have both books. Some of the info is conflicting between the two. Cliff's book has more illustrations and how-to instructions, while the Roe book is more technical and has some extra info about other Rochester carbs besides Q-Jets. Both are good books, but I believe Cliff's is a bit more useful.
definitely get both. valuable info in each. lots of common info, but two perspectives/styles. worth reading / familiarizing both
well actually i said screw-it , and ordered both . and thats before i saw ken and seans comments . karma ! thanks for the info . was kinda goin for cliff's - more pics which kinda helps me quick - just makes the light come on sometimes . but thought the extra info couldn't hurt .
Also, if you can find it, get the older version of "Rochester Carburetors" By Doug Roe and Bill Fisher, published in the early 1970's. It chock full of even more info at 296 pages, but is now out of print. http://www.amazon.com/Rochester-Carburetors-Emission-Controls-Quadrajet/dp/B000NFPNFE/ Devon
checked around at last couple swaps i was at - no dice . summit had both for like $17-$20 each . have not run across that early version .
Here ya go - used copy, $6.00 http://www.amazon.com/gp/offer-list...-2&keywords=doug+roe+quadrajet&condition=used I have it, i generally look at it as supplemental to Cliff's book. Well worth it at twice this price anyway.
ordered both tues nite with some other summit stuff I needed - ups showed up late Thursday am - quick . both seem to be pretty much how len described 'em . also ordered the carter/edelbrock book by HP , seems pretty good , also covers the TQ and has some oem ref numbers too . ordered a holley book - waste of $12.00 - ok info but nothing too dif from what I have already .
When I was asked to write my book, I hadn't even opened the Roe book in at least 20 years, and never looked at it once when writing mine. I wanted the information to be useable, accurate and updated. I wrote the book with the hobbyist in mind, trying to make good information available for the guy who loves doing his own work. If you see any similarities in the two books, it is purely coincidence. I knew the Roe book was full of "tech" stuff, so I didn't focus on regurgitating a bunch of nice to know specifics on the Rochester units. Instead, I focused on "how it works", and how to make simple modifications to them that were dyno, street and track tested......Cliff
I think that there are similarities is a good sign! if there were a lot of contradicting info, it would likely mean there is more than a "different way of doing things" at work. Having also not looked at Roe's book in a long time, I agree that Cliff's book is more useful for a guy that has a garage and some decent tools and skills. Roe's book provides a lot of other cool options, but a lot of those are things that a home builder should probably not be messing with unless they have a lot of time and a dyno for testing.Both have their place. Over time I am pretty sure I ruined more than one good Q-Jet thinking I was going to be able to do what Roe did without the luxury (or necessity) of any way to measure and adjust the fuel curve after I was done "fixing" everything. At the time of my "fixes" Q-jets were free for the taking so it was fairly inconsequential and I didn't really know what a fuel curve was! Not so today. Great book Cliff and if I were to pick one to fix my carb, it would be yours. I do/did like reading about all the cool possibilities in Roe's book too. Thankfully I don't have to choose between one or the other for the enjoyment of learning.
Thanks for the kind words. I would add that at some point there will be a re-write of the book. Due to space limitations and word count, etc, there was quite a bit I had to leave out of the "high performance" chapter. I prioritized the information that went in there, so it would be the greatest benefit of the reader. It's not really the publishers fault, they have basic guidelines for their books, so the first one was wrote to follow them exactly. In the next revision, we will dive more into building q-jets for full race applications, and provide some more information on fine tuning, especially with airbleeds and different jet/rod combinations. I may even throw some CCC stuff in there as well, as interest in them has been increasing in recent years.......Cliff
Wow, I threw in the towel with CCC. I didn't think it would fit my needs for high-perf. I'm sure there's a good reason you would like to include it.
In recent years there has been an every increasing interest in the 1980 and newer cars with the CCC q-jets. The Old's 442's, Monte Carlo SS's, Camaro's and FB's were made in great numbers in that period. The computer controlled Q-jets are excellent units, different only from the standard units in using a ECM to control part throttle fuel via an M/C solenoid and an adjustable upper idle airbleed system in the airhorn. We just finished up a project here, built a 350 SBC for a Monte Carlo SS, left all of the stock components in place for the ECM, but added Hooker Headers. Looks completely stock under the hood, idles good, drives like a stocker, but has over 400hp available when you need it......Cliff
ok - had a chance to skim both books a little twice I think : > roe book - lots of good info . pics are ok , BnW . nice to have some info on the 2bbl's ( not much ) and w's . but it was kinda like lookin over an extended set of "kit" instructions and service manual pics in spots sorta . > cliff's - just q-jet info but also a lot of good info . great pics - color , clear - good help . have to look over the recipe's more and pretty extensive rod info . the q-j part number guide matched what I had already which is good . the thing I liked about cliff's is that it's like you are watching over his shoulder as a he does stuff and explains to ya . the edelbrock q-j section at the end was interesting . > both books - due to the very nature of the q-j's , choices n variations , its kinda confusing keeping track of what we are looking at initially . not just year dif's but model line , choke and linkage dif's just make it more so . I can not imagine having all that knowledge stuffed in your head to recall at a moments notice . edit - couple questions : > the edelbrock versions - seems like they would be a good choice yet I don't really see too much about 'em here , or anywhere I guess . sounds like they have incorporated several good design features into one version ? plus the 850 thing . > carb # 7041544 : looks like buick 1971 auto - but the 5 is calif emission - ok or not so hot for some reason . i'm thinkin probably calibration that can be easily changed but not sure . had a chance to buy it . shoulda got more info and a pic .
Yeah Del, the ultimate Q jet is the 850 Edlebrock version. I added one to a 454 in a Vette and it works great!
The 850 cfm Edelbrock "RPM" q-jet is an exact duplicate of a 1979-1980 Chevy truck carb with single main airbleeds. They used HUGE idle tubes in it, lots of idle down channel, and bypass air. It uses a Marine length pump which is too short and crappy seal on it and cheap white plastic construction with no crimped on retainer. Spring under it is too strong and spring on the pump coil binds when compressed. The secondary airflaps open quite a bit further as well and have large holes in them as used on some late model Marine units. Otherwise, it is nothing special, and there are zillions of late model Chevy truck carbs available (non CCC) models, which can be made to work equally as well as any Edelbrock RPM unit......Cliff
