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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Wed Jun 26, 2013 11:50 pm Post subject: |
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Also how do I go about choosing lifters for my cam. I am wanting to rebuild bottom end also but with time running out and funds not here yet I may not be able to. |
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MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
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Posted: Thu Jun 27, 2013 8:35 am Post subject: |
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to me thats a BIG cam for basiccally stock motor...
u make sure ur springs can handle that lift...
a lifter is a lifter-flat ot rollor -just buy new-
as far as carbs go----go to any track and compare the number of q-jets to holly/holly clone type carbs....~95% will be holley...
holly compared to q-jets are MUCH eaiser to tune and parts are more availible......both will work IF tuned properly...
Mike |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jun 27, 2013 11:53 am Post subject: |
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My springs accordIg to the shop can handle the lift. The reason IvHasked about lifters is because delta wanted to sell me a set for 480 which seems alot more then what ivsee online. And I have been debatinf a hollet for a long time, but I hear that they need to be messed with quite abit |
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MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
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Posted: Thu Jun 27, 2013 1:17 pm Post subject: |
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wow thats alot for flat tappet lifters---get a set from summit much cheaper. u are going hyd. correct?
what rocker arms and ratio are u going to use?
the new style hollys are way easier to tune ie..change jets and metering rod etc. without taking the complete carb apart everytime....
have u looked at the bottom side of each carb? its very hard to get a smooth transtion to the secondarys of the qjet cause of the size difference..all depends on what u are shooting for..... |
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Alphius Peanut
Joined: 05 Sep 2006 Posts: 2429 Location: Grand Mound
1984 Chevrolet Camaro Z/28
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Posted: Thu Jun 27, 2013 1:41 pm Post subject: |
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A QJet set up right is great for a driver. A Holley set up right is great for a literal drag car, not something you call a "drag" car but drive on the street 99% of the time. I'd take a well tuned QJet over a well tuned Holley any day for any of my cars.
Actually, that's a lie, I'd rather have fuel injection. _________________ 84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow |
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MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
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Posted: Thu Jun 27, 2013 2:11 pm Post subject: |
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i will agree with that.."well tuned"
however-which is easier to tune? holly wins here.....
anyway FI is the only way to go- no more carbs here... |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jun 27, 2013 4:10 pm Post subject: |
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New cam = new lifters.
I wouldn't build another flat tappet motor without at LEAST getting a set of Lunati lifters with the offset EDM oiling hole. _________________ A redline a day keeps the carbon away! |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jun 27, 2013 5:26 pm Post subject: |
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yes hydrolic. I dont know what kind of rocker arms or ratio yet . I tend to overalalyse everything. I want to have as well matched of a motor as I can. I havent brought block to machine shop yet. So I dont know if I am going to go with a new bottom end or nit. I have been looking at pistons, but have not learned how to pick the best type for my buikd yet. |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Alphius Peanut
Joined: 05 Sep 2006 Posts: 2429 Location: Grand Mound
1984 Chevrolet Camaro Z/28
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Posted: Thu Jun 27, 2013 5:32 pm Post subject: |
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Let the machine shop spec the pistons. You don't know if those will work until you know more about your engine. _________________ 84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jun 27, 2013 5:34 pm Post subject: |
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Ok. |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jun 27, 2013 6:23 pm Post subject: |
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MrMike98 wrote: | go to any track and compare the number of q-jets to holly/holly clone type carbs |
I have never seen any Carter or Carter-based carb (i.e. Edelbrock) that wasn't a piece of crap.
I've had several daily drivers with Holley carbs and I don't understand all the crying about how "hard" they are. Once I got my head around carb tuning I couldn't have been happier with them. |
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Alphius Peanut
Joined: 05 Sep 2006 Posts: 2429 Location: Grand Mound
1984 Chevrolet Camaro Z/28
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Posted: Thu Jun 27, 2013 8:08 pm Post subject: |
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I'd rather have a QJet but that's probably because I know how to get them to behave properly and cold weather starting/driveability and fuel economy are second to none. Most I've ever done on a Holley is change the powervalve spring or some such nonsense.
The 4160 on Mom's '71 Chevelle runs pretty good, though economy leaves something to be desired. _________________ 84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow |
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1987_sportcoupe Member
Joined: 08 Jul 2011 Posts: 246 Location: Tacoma, WA
1987 Chevrolet Camaro
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Posted: Sun Jun 30, 2013 9:03 pm Post subject: |
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Quote: |
Veesix is way easier, you can do it with the hood on. Not actually pulling in this shot, just replacing the oil pan:
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Indeed the V6 is "easier" unless you're pushing it down a rocky alley on a cold January night! |
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Quasi-Traction "I have petals"
Joined: 24 Oct 2005 Posts: 3873 Location: stumptown
1986 Chevrolet Camaro Berlinetta
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Posted: Mon Jul 08, 2013 6:28 pm Post subject: |
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Alphius wrote: |
The 4160 on Mom's '71 Chevelle runs pretty good, though economy leaves something to be desired. |
That is the one thing, I have to say makes a Quadrajet superior to a well-tuned holley, you'll almost always get a couple more MPG out of the Q-jet. And also with a heavier car/automatic, I'd go with the Q-jet over a holley. |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jul 11, 2013 8:41 pm Post subject: |
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1987_sportcoupe wrote: | unless you're pushing it down a rocky alley on a cold January night! |
Factual!
Quasi-Traction wrote: | always get a couple more MPG out of the Q-jet. |
Got high teens city and mid-20's highway in my S10 with a 4160.
Quasi-Traction wrote: | And also with a heavier car/automatic, I'd go with the Q-jet over a holley. |
Got 13-14 highway in the Mercury with a de-plated 4160. Cruising at 2800 with the big block. 3.50 gears, no converter lockup and no overdrive.
Don't get me wrong, I got nothing against the Quadrabog, but there is no good excuse for getting poor economy with a Holley. |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Fri Jul 12, 2013 6:34 am Post subject: |
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Sure there is. More power more fun heavier foot. _________________ A redline a day keeps the carbon away! |
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Alphius Peanut
Joined: 05 Sep 2006 Posts: 2429 Location: Grand Mound
1984 Chevrolet Camaro Z/28
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Posted: Fri Jul 12, 2013 9:28 am Post subject: |
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aaron_sK wrote: | Got high teens city and mid-20's highway in my S10 with a 4160.
Got 13-14 highway in the Mercury with a de-plated 4160. Cruising at 2800 with the big block. 3.50 gears, no converter lockup and no overdrive.
Don't get me wrong, I got nothing against the Quadrabog, but there is no good excuse for getting poor economy with a Holley. |
Coulda done better with a Qjet... _________________ 84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Fri Jul 12, 2013 1:49 pm Post subject: |
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Twilightoptics wrote: | Sure there is. More power more fun heavier foot. |
You'll notice I didn't mention what kind of light-to-light economy I saw with that 390! |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Tue Jul 23, 2013 8:23 pm Post subject: |
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So I have got nowhere so far with this build. Heads still in shop. Finances have gotten in the way. Really bums me out because it is just sittimf there with nothing done. |
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