The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   LSx Swaps (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=206)
-   -   Lq4 Cam/ motor input ??? (https://67-72chevytrucks.com/vboard/showthread.php?t=569139)

Super73 02-08-2014 01:42 PM

Re: Lq4 Cam/ motor input ???
 
Going back to your original post. I built a similar combo that I wanted to share. Differences are in blue

Quote:

Originally Posted by 85/05Silverado (Post 5927788)
Stock lq4 bottom end 347ci and 11-1 cr
Livernoise stage 2. 243 heads, stock replacement head gaskets Stock 243 heads
Doug thorley mid length 1 7/8" mid length headers Hooker 1 3/4 stepped to 1 7/8 long tubes
Plan on putting ls6 intake/ throttle body on top Same
Double roller timing chain Same

4l80e, probably a 3000 rpm stall running 3:73 posi in a 12 bolt rear end with a 28-29" tire 4L80E with 3,200 stall 26" tire

Looking for a good street able cam with a nice chop
So far I'm kinda set on the, TSP 228r with 112 lsa 223/228 XER lobes 108icl/108lsa
Posted via Mobile Device

This made 37x rwhp / 36x rwtq and maintained a stock LS6 cam's power band. This was a solid high 12 second combo @ 3,900lbs even with the overly tight converter.


LSA does not specifically dictate a cams chop, nor is it tied specifically to overlap. It has to do with valve events as a whole.

Not getting in to the L92 vs LS6 vs aftermarket head debate as it is way to long to type out. But short answer, it depends on your goals.

BR3W CITY 02-08-2014 02:12 PM

Re: Lq4 Cam/ motor input ???
 
Quote:

Originally Posted by Super73 (Post 6515202)
Built or helped build combos using similar combos using both a cathedral head and a L92 type head?

Have put multiple different cam shafts in the same motor only to see the results different valve events have on said combo?

Have dyno and track tested these different combos? Including tuning them?


Yep, tho not track tested.

ls1nova71 02-08-2014 02:25 PM

Re: Lq4 Cam/ motor input ???
 
Am I the only one who has noticed that this thread is pushing a year old and the OP hasn't replied since 3-6-13?

Super73 02-08-2014 02:31 PM

Re: Lq4 Cam/ motor input ???
 
I did not catch that :)

68GMCCustom 02-08-2014 05:08 PM

Re: Lq4 Cam/ motor input ???
 
:lol:

his profile shows he hasn't seen/been here since August!
Quote:

Last Activity: 08-30-2013 07:12 AM
:lol:

jamesjones 02-08-2014 06:05 PM

Re: Lq4 Cam/ motor input ???
 
As long as there's still useful info being discussed, who cares?

:lol:

slowcpe 02-08-2014 06:15 PM

Re: Lq4 Cam/ motor input ???
 
I've been reading with interest. Just picked up a 6.0 last week. Got a torquer 3 cam but may not use it now. Just seems too big for a street truck and not enough compression with a LQ4 and stock 317s.

Don't really want to change heads at this point in time as then I'm opening up a new can of worms in comparing stock motor and turbo vs h/c/i.

ls1nova71 02-08-2014 06:19 PM

Re: Lq4 Cam/ motor input ???
 
Quote:

Originally Posted by jamesjones (Post 6515613)
As long as there's still useful info being discussed, who cares?

True, I just thought it was funny how people kept refering to the OP like the thread was new. :lol:

Billett 02-09-2014 01:34 PM

Re: Lq4 Cam/ motor input ???
 
Nope, I had no idea. I remember posting way back when, but didn't realize it had been so long.

Jon01 02-09-2014 01:54 PM

Re: Lq4 Cam/ motor input ???
 
Quote:

Originally Posted by Super73 (Post 6515202)
I am very curious, who that has commented in this thread has actually:

Built or helped build combos using similar combos using both a cathedral head and a L92 type head? Yes. I just swapped from cathedral to rectangle this last winter and have helped several friends do the same.

Have put multiple different cam shafts in the same motor only to see the results different valve events have on said combo? No, I don't have endless $ to throw at this hobby to play R&D. I buy proven parts.

Have dyno and track tested these different combos? Including tuning them?
I tune all of my own stuff. I don't go to the track, it's too far away and I don't have the time to spend a weekend messing with it.

I am not pointing at anyone specific, but it sure is easy to regurgitate what one reads on the internet.


I'm not going to get in a pissing match, but there is a lot of bad info with a little bit of good here.


Opinions are just that. I now realize the thread is old but if I see something I don't agree with I will state it and my logic for why. With the search function I consider it important to post regardless of age of post.

BR3W CITY 02-09-2014 02:51 PM

Re: Lq4 Cam/ motor input ???
 
Except no one here uses the search button lol.


The "Whats gonna fit" threads prove it.

Super73 02-09-2014 03:03 PM

Re: Lq4 Cam/ motor input ???
 
Jon,

Unfortunately (and I am not pointing fingers here, so don't take it personal) when someone gives opinion that contradicts proven facts, people can be steared the wrong way. I try to provide info based on first hand experience, changes i have tried. Info that i have either proven or disproven. This is what helps people move forward and build projects to better meet their goals. Opinions based on what one was told 3rd hand, well you might not be getting the full story. Heck, i have made 510who cam only in a 2001 camaro. Oh but I forgot to mention the 100hit of n20. See my point?

Jon01 02-09-2014 06:38 PM

Re: Lq4 Cam/ motor input ???
 
Quote:

Originally Posted by BR3W CITY (Post 6517067)
Except no one here uses the search button lol.


The "Whats gonna fit" threads prove it.

I couldn't agree with you more! :sumo:

Quote:

Originally Posted by Super73 (Post 6517076)
Jon,

Unfortunately (and I am not pointing fingers here, so don't take it personal) when someone gives opinion that contradicts proven facts, people can be steared the wrong way. I try to provide info based on first hand experience, changes i have tried. Info that i have either proven or disproven. This is what helps people move forward and build projects to better meet their goals. Opinions based on what one was told 3rd hand, well you might not be getting the full story. Heck, i have made 510who cam only in a 2001 camaro. Oh but I forgot to mention the 100hit of n20. See my point?

I have built several motors, done head and cam swaps plenty of times. I don't see what you're getting at here…I'm not talking out of my ass.

Super73 02-09-2014 07:21 PM

Re: Lq4 Cam/ motor input ???
 
Jon, again I wasnt pointing my finger at you. It was a general statement towards some opinions that don't have real world experience to back up their opinions.

Jon01 02-09-2014 08:12 PM

Re: Lq4 Cam/ motor input ???
 
Ok, sorry, just clarifying what you were getting at.
Unfortunately that's the biggest problem of the internet…people with no or minimal experience touting what they have read as fact.

Billett 02-10-2014 07:00 PM

Re: Lq4 Cam/ motor input ???
 
On the other hand, do either of you have all day to answer every thread? Just trying to look at it from both sides here ok. You were taught through grade school out of a book and didn't learn everything hands on. What you have to remember is to take everything with a grain of salt as they say. No one has the time or the experience for every question.

68GMCCustom 02-10-2014 10:13 PM

Re: Lq4 Cam/ motor input ???
 
well I too try to keep my suggestions based on experience vs what "they say".
I'm an old guy that's been out of it for years but always been a hotrodder at heart, and even worked in an automotive machine shop tearing down/building motors (and working with other components like clutch flywheels, brakes, axles, d-shafts etc.) when I was much younger. I often wonder how I got directed away from it to other careers... in more then one field....better pay I guess.

anyway, no expert but certainly no newbie either :lol:

Billett 02-10-2014 10:49 PM

Re: Lq4 Cam/ motor input ???
 
I wasn't questioning anyone's experience, just that you really have to do your research. Don't take just one thread at face value, dig a little deeper to make sure it's true if you have doubts.

http://www.carcraft.com/techarticles...s/viewall.html

This article seems to follow with what we stated earlier, L92s have less power lower in the rpms, but more up top. "Stage 2" heads will net more power but I personally don't think the price is worth it.

Again though, I'm not claiming experience, just that I do try to check my sources.


All times are GMT -4. The time now is 12:04 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com