Vortech v9 gtrim
Right now here are the mods to my ls1
cam f13 230/232 .595 .585 110+4 LSA
prc stage 2.5 5.3 heads
ls6 intake
1 7/8 longtubes
3.5 inch dual straight pipes
This set up put out 400whp and 370tq on 93 octane
If I add the v9 what could I expect? This is strictly a fun/track car btw
would probably just add larger injectors and e85 then get a tune
also what size pulley/boost do you think I could run?
and make sure your fuel system could support the added power you are shooting for.
i assume you have a stock bottom end? with the g trim i believe it is limited to around 600whp. but im not positive on that.
is the kit aftercooled?
as for boost and pulley sizes, that depends on a couple different things.
i run a 2.75 pulley and i see a solid 8# and maybe more, but at that point, im too busy looking ahead of me.
i put down 465whp and 466wtq WITHOUT a working aftercooler, and full exhaust.(aslo supporting fuel mods and things of that sort.)
other then that, my car is pretty much stock. and my injectors are pretty much maxed.
I was wondering how my cam would perform under boost, I don't really want to swap it out LOL if anyone knows how my cam would be let me know please

My fuel system should be good im running an external walbro 255, I do also have a spare so I could run double pumps if I had to.
i think your seeing less boost then you may expect because of the fact that all that air flow has to run though all that piping. how many # do you see? altitude also effects boost loss.
ive had my v9 g trim on the car for a couple years without any problems.
it looks good, and get the jobs done. people see amazing numbers from these kits. ill also ask my friend how well that cam will respond to boost.
What is your setup LSpeed1? A2W, FMIC, none of the above?
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What is your setup LSpeed1? A2W, FMIC, none of the above?
i have a2w aftercooler that came with the kit. the only reason why its not working rightnow is because the waterpump for the aftercooler went bad. but i should have that fixed this weekend.
i was thinking about going frontmount, becuase it seems like a2w is a bit of a hassle, and i think a fmic is a simpler setup, but i havent decided yet.
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i have a2w aftercooler that came with the kit. the only reason why its not working rightnow is because the waterpump for the aftercooler went bad. but i should have that fixed this weekend.
i was thinking about going frontmount, becuase it seems like a2w is a bit of a hassle, and i think a fmic is a simpler setup, but i havent decided yet.
1) It's simpler
2) It's better (unless you're adding ice) -- here's why IMO
The air that is hitting your water intercooler is not able to reduce the heat to the air's temperature. I believe 70% efficiency is good for them. So you're heating your water by the 200* charged air and trying to cool it with the ambient temperature air, yet your water can't hope to get to the ambient temperature because the water's intercooler isn't capable of it.
Here's the data that supports the above:
Data on temperatures, intercooler effectiveness, etc. - http://www.procharger.com/h2hdt.html
Everything you ever wanted to know about intercoolers - http://www.turboneticsinc.com/sites/...tercooling.pdf
1) It's simpler
2) It's better (unless you're adding ice) -- here's why IMO
The air that is hitting your water intercooler is not able to reduce the heat to the air's temperature. I believe 70% efficiency is good for them. So you're heating your water by the 200* charged air and trying to cool it with the ambient temperature air, yet your water can't hope to get to the ambient temperature because the water's intercooler isn't capable of it.
Here's the data that supports the above:
Data on temperatures, intercooler effectiveness, etc. - http://www.procharger.com/h2hdt.html
Everything you ever wanted to know about intercoolers - http://www.turboneticsinc.com/sites/...tercooling.pdf
ive heard from a ton of people that front mounts arent really that big of an advantage though. thats why im still a2w rightnow. although ice could be the turning point in a a2w setup.
where did you get the fmic and all the piping for it?
You should go look on ebay for some 3" IC piping, I believe CX racing offers a variety of bends in "kit." You could pull off your old set up and use it for reference to mock up a nice 3" one. I bet that 2.5" plumbing is causing some restriction. I run 3" pipe to my front mount IC with my g-trim and so far it has been pretty efficient (9.2lbs at 65k rpms) Also, the leaks in your pcv and egr are probably causing a problem. Do you have a freeze plug in your ls1 intake? Thats what I have as of right now, I have been checking after each time I take the car out to make sure that plug is still seated in my manifold. Let me know when youn get those kinks worked out and get some new #s
I was wondering how my cam would perform under boost, I don't really want to swap it out LOL if anyone knows how my cam would be let me know please

My fuel system should be good im running an external walbro 255, I do also have a spare so I could run double pumps if I had to.
i have a2w aftercooler that came with the kit. the only reason why its not working rightnow is because the waterpump for the aftercooler went bad. but i should have that fixed this weekend.
i was thinking about going frontmount, becuase it seems like a2w is a bit of a hassle, and i think a fmic is a simpler setup, but i havent decided yet.
but going frontmount, wouldnt you have to relocate your battery?
what kind of intercooler do you have?
and where di you get it from? have any pics of your setup yet?
you could deff. fab up ic piping from that site for sure too.
and to the op, from my understanding, that cam is not idea for a boosted car at all.
with boosted cars,the more lsa you have, the more boost friendly, in a way.
your cam is a strictly n/a type cam.
Last edited by LSpeed1; Jun 24, 2010 at 01:53 PM.
and did you have a stock bottom end with 600whp?
Yeah I know my cam isn't ideal, but it will work like Inspector12 said.
I guess I'll put this whole set up together and see where it takes me, if Im not happy with the performance I will change out the cam in the future. But like I said I would be content with 550wheel and I dont want more than 600 due to reliability. Im thinking with my baseline at 400 it should be able to reach my goals well hopefully lol


