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-   -   combo idea's, inside if interested (https://ls1tech.com/forums/generation-iii-internal-engine/396269-combo-ideas-inside-if-interested.html)

seadoo Oct 17, 2005 01:59 PM

combo idea's, inside if interested
 
100% street driven stock LS1 block combo's for swap into 79 camaro!
number 1.
custom comp cam 224/224 .565/.565 110lsa 106icl (yes its fine on the street, and made 400/400 stock heads)
Crane Gold Quick-Lift rockers 1.80
stage 2 LS6 heads (10.7 CR)
FAST 90/90
custom 32" 1 3/4" headers with HVMC
3" X-pipe out the back (79 camaro had duals)

number 2.
same as above but...
LS6 intake
same headers, 2.5" X-pipe out the back

Patrick G Oct 17, 2005 02:39 PM

Opinions. Cam is too far advanced to make good power at all rpm. Consider having it ground at 110ICL (no advance). You will make 10-15 more rwhp and still have strong low end torque.

The FAST 90/90 is definitely the way to go. I gained more from a ported FAST 90/90 than I did with headers (27 vs 22 rwhp gain).

Don't do the Crane rockers. Too many people are having issues with them. Results are all over the place. Some good, some bad. You'll have fewer headaches with the stock rockers.

seadoo Oct 17, 2005 03:13 PM

thanks Patrick... btw... your setup makes me :drool:

the cam on the 106icl on stock heads (full bolt on though) makes 380#'s and 360hp by 2800... peak HP of 400 is at 5900 and carries too 6500 before dropping off.

I dont want to shift past 6500 on stock long block, so that is perfect for me.
but I will keep that in consideration though, thank you for the thought!

it wont be a track car. it will wont see track. just a street driven G-Machine :devil:

oh, and what about the exhaust ?

Patrick G Oct 17, 2005 03:24 PM

Headers with HVMC are a solid investment. I'd do dual 3" to the x-pipe, then neck down and do dual 2 1/2" the rest of the way back.

I still have to highly recommend you consider grinding that cam at 110ICL. At 106ICL, your intake closing point is 38 degrees ABDC (at .050"). Way too early IMO. You'll make better power EVERYWHERE with the 110ICL. Your intake closing point will be 42 degrees and your overlap will happen right at top dead center (which will allow you to make very well rounded power). Like I said, 106 ICL you'll make peak power at around 5800-5900. With 110 ICL, you'll make peak power closer to 6100 and will make 10-15 more rwhp in the process (while still maintaining the power down low of the 106 ICL cam).

vtanju Oct 17, 2005 03:30 PM

i would increase the compression ratio to 11.5:1

seadoo Oct 17, 2005 03:33 PM

EDIT: messed up.

below please!

seadoo Oct 17, 2005 03:36 PM

so the same cam ground on a 110lsa and 110icl ?
will it still make the trq (380 or so #'s at 2800)
thats what I really car about. I want the most trq at really low RPM where I drive 90% of the time?
thanks

Patrick G Oct 17, 2005 03:37 PM


Originally Posted by seadoo
so the same cam ground on a 110lsa and 110icl ?
will it still make the tr

It will make more torque (total area under the curve). As a general rule of thumb, you advance a cam that's too big and you retard a cam that's too small. A 224 is not too big and not too small. You don't want to advance this cam, especially with a 110LSA.

seadoo Oct 17, 2005 03:42 PM

oh okay, I actually think im understanding that! im learning, cool!!
so the same same 224/224 .565/.565 cam on a 110lsa and a 110icl will actually produce more trq from driving range 2500-5000 AND make more hp than a 106icl ???
is that what im gathering here?

thank you so much Patrick!!

seadoo Oct 17, 2005 06:50 PM

Patrick? u still in here?

Patrick G Oct 17, 2005 07:00 PM

You've got the right idea now.

seadoo Oct 17, 2005 07:07 PM

you are the man!!
wish u lived in FL

seadoo Oct 17, 2005 07:35 PM

so... Patrick.... one more bothersome question (sorry just trying to learn this stuff)
so we have now set a 224 with a 110lsa and 110icl...
what about lift. speed, inc told me that I will gain power and about 15#'s of trq going to the XE-R lobes (.581 lift) from the XE but it will begin to buck on me at low rpm.
will only a .581 lift hurt drive ability that much??

seadoo Oct 18, 2005 11:01 PM

okay, update on combo... thanks patrick G

same as mentioned but 224/224 .581 110lsa 110icl
and ls6 intake for now... then the fast when the $ comes in


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