FAQ: TVS/Harrop-lsj1320 & You
02-02-2009, 02:27 PM
#102
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how bout I'll just tell you what he told me.
On the stock blower, You need not rev past 7500 rpms. Unless you have cams. On the stock cams, it's pointless, the power drops off.
On the tvs, It will make power past 7500, adjustable cams gears would definitely help. Or just aftermarket cams.
On the stock blower, You need not rev past 7500 rpms. Unless you have cams. On the stock cams, it's pointless, the power drops off.
On the tvs, It will make power past 7500, adjustable cams gears would definitely help. Or just aftermarket cams.
02-02-2009, 02:51 PM
#106
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you don't have to figure out all that on your own. Whoever is going to do the regrind should be able to help you figure that stuff out. Plus, comp cams, crower, area47 and others are just a phone call away. Talk to a professional, get all your goals and your setup figured out, then get them to figure out the specs for you, then get the cams done.
02-02-2009, 02:54 PM
#107
Haz l33t wheelz.
Exactly what i would do in the event i started looking for a set. Just wondering if it is truly worth it for the LSJ. seems to like timing more than anything.
02-03-2009, 09:09 AM
#114
Question for you guys though, I know it's not necessary for the TVS, but what are the benefits of the LS4 TB vs stock? I know better response and all that, but what else? And if I got it would I have to custom-fab my Injen cai to fit up to it?
02-03-2009, 09:18 AM
#115
Haz l33t wheelz.
/flows better, because its bigger, and the HTV was designed for it.
thats as much as i know.
thats as much as i know.
Last edited by ls1fbody; 02-03-2009 at 09:18 AM. Reason: Automerged Doublepost
02-03-2009, 12:47 PM
#118
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It showed an increase of about 10-15 whp and wtq throughout the powerband. Not at the peak, but throughout the powerband, which is what matters. It's worth it. I got one that will be going on my car when I get it back together and I ported it myself.
02-05-2009, 03:28 PM
#119
If I'm making more than 20psi, what will happen to my stock boost gauge? Will it just max out? What can I do about this?
Your stock boost gauge will max out, then zero out after a bit. If you want a gauge that maintains the stock look but can go higher (up to the LSJ's PCM limited 22.35psi), you may want to consider an SS T/C boost gauge. It is plug & play compatible with 05--07 supercharged models.
You can buy one here: http://www.crateenginedepot.com/stor...P2291C212.aspx
If you will be making more than 22.35psi, you will need to switch to a mechanical boost gauge like this one:
http://www.autometer.com/cat_gaugede...earch&gid=3442
Here is the how-to for the install: https://www.cobaltss.net/forums/how-guide-43/install-pics-mechanical-boost-gauge-go-exhondamans-write-up-15721/
Purchased an SS T/C gauge, put it in my 07, and the reading was off. The above info is no good.
Your stock boost gauge will max out, then zero out after a bit. If you want a gauge that maintains the stock look but can go higher (up to the LSJ's PCM limited 22.35psi), you may want to consider an SS T/C boost gauge. It is plug & play compatible with 05--07 supercharged models.
You can buy one here: http://www.crateenginedepot.com/stor...P2291C212.aspx
If you will be making more than 22.35psi, you will need to switch to a mechanical boost gauge like this one:
http://www.autometer.com/cat_gaugede...earch&gid=3442
Here is the how-to for the install: https://www.cobaltss.net/forums/how-guide-43/install-pics-mechanical-boost-gauge-go-exhondamans-write-up-15721/
Purchased an SS T/C gauge, put it in my 07, and the reading was off. The above info is no good.
Last edited by Pyros777; 07-16-2009 at 02:10 PM.
02-05-2009, 04:22 PM
#121
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The ss/tc boost gauge? Or the TVS? There's a how-to on here. It varies slightly from a how-to to swapping pullies on the M62. Only diff is you need to make a modification to the MAP sensor and angle it to fit beneath the housing of the TVS and adjust your oil dipstick. Piece of cake.
