Also you're touting "pump gas" but looks like you're mixing race gas or you're lying in one spot or another *shrugs*.

https://www.cobaltss.net/forums/6517212-post31.html

 

i add lucas octane booster to my 93 octane, thats true. not sure that means im not on pump gas? but yes, apples to apples. there was no tuning change to take advantage of the extra cooling just unbolt stock, bolt on ported. 20 horse gained. period. it sucks if you dont have one. pay the money and get one. dont try and tell other people not to do a good mod just because you havent.

 

rofl, no tuning, and gained 20hp. that's blatantly BS for 1. and 2, you are not going to pick up 20hp with tuning off a ported IM on a 300hp car. pass that pipe.

 

installed by fred at smg, ported and single pass converted by euthanasia. look back in my posts and youll find the dyno sheets. ive had the car 18 months and took her from bone stock 200 whp to 300 whp. there were a bunch of parts that added up to the 100 hp gain. tvs was 30. lim was 20. tb was 10. other 50 was long tube header with cat delete and gmpp exhaust, zzp cai and tuning made possible by big injectors and cooling mods. the dyno doesnt lie. if your spend the money, you get the power. its that simple.

 

 

dont waste ur time, just let him believe what he wants lol.

 

Actually, both the H62 & TVS 1320 were designed for use on the 2.0 LSJ.

The TVS 1900 & MP90, not so much.

You need to stop while you're ahead.

I'm not sure why you are so stuck on arguing the info found in that Hot Rod Magazine article.

 

They were designed for it, not vice versa. I'm just having a discussion, forum words are read without inflection

 

will you still have doubts when the meth and 2.6 put me well past the 300 mark? will the ported single pass LIM just be window dressing? the checks here, now all thats left if for fred to get the kit and hook me up.

 

troof. end thread

 

You say well past the 300 mark like that's hard to do. But Lols for when you dyno under 350 with all this work. Better jump on a dyno jet.

 

i wasnt exactly looking for hp gain on porting the laminova intercooler i was assuming with more air passing thru maybe it would help with cooling a little?

 

the actual dimension of the slots for the laminova had a lot of engineering put into it, and making it larger actually has a detrimental effect. There are two issues to deal with, not one.
one issue, the most important one, is the transfer of inlet air temperature via the laminova cores to the fluid in the aftercooler.The second issue is the inlet air flow. As the blower creates pressure, which creates heat, the ratio is a fascinating engineering study. GM did that work, with time, money, expertise and resources available to them, that no one, not zzp, not myself, NO ONE here can even contemplate matching.

Conclusion: GM determined the slots the way they are, are best left alone, they are already pretty much optimum, and there is a detrimental effect opening them up; the air flow isnt the issue, but if the air does not stay long enough in milliseconds as it passed through the cores, the increase in inlet air heat as the transfer through the laminova is negatively affected, that is the issue. Inlet air temp rises, power reduces.

 

thank you thats what i needed to know

 

of course powell is wrong here, as he often is. gm designed the setup with the stock m62 in mind. then they offered upgrads for it such as dual pass. it was the least effective system that could get the job done. they spent the absolute minimum they could get away with. my ported and single pass LIM is much more effective at cooling the air the blower heats. dyno sheets and sensor readings do not lie. the auto maker is always playing a game of cutting costs and corners every way they can. this intercooler wasnt designed for power production at all. they had a small area to work with, made a very basic cad design and then shipped it to production. the stock lim is restrictive and poorly designed. 4 passes through the lim for the cooling fluid? are you serious? look at your car radiator. look at how many channels there are for fluid to pass through at once. all radiators are "single pass" because for 100 years thats been the best way to do it. now gm makes a air to liquid intercooler and goes 4 pass with a bag of parts to turn it into 2 pass. pathetic. then they sandwich a small radiator against the 180 degree car radiator. are you serious? that was the plan? whats amazing is that it works at all. convert to single pass and open the ports up a bit. it has PROVEN gains. not gm worship crap, hard dyno numbers. can you open them up too much? maybe. thats why you have euthanasia do it for you. hes does this **** like its his job. because it is. and yeah, when you want your head ported, hes the guy for that as well. difference is you can change the LIM in your driveway in about an hour with basic hand tools. bolt on power. next powell will tell you how porting your m62 is a bad idea because engineers worked on it. oh wait, there are a **** ton of dyno sheets proving porting the blower works so he will probably duck that issue. oh **** powell, the engineers decided what pulley should be on it too, we must all be losing power by over spinning our blowers too right? every part in these cars is ****, its up to guys like euthanasia and zzp to make them better.

 

 

meh. usual disclaimers. Oh one more thing, if the car is such a bag of crap, whats a smart guy like zfisette doing owning and driving one?

 

laminova cores flow water/coolant straight through or in a laminar flow. if you were to port the slots around the core too much, it would create more turbulant flows which would slow down the overall rate at which the coolant flows. but there would be no way for any of us to really be able to tell how much is too much.

However, gm would probably have the technology to test flows. but none of us will know if they did go with the best option or not

 

The best part of this thread so far is 50hp from header and full exhaust. Lol

 

im not trying to take sides, but if he installed each item in chronological order of what he listed and was running a tvs on stock exhaust, he probably did see a nice gain after going full exhaust, cai and some decent tuning. dyno numbers are arbitrary anyways

 

There's a article floating around regarding the cores used in our aplication and optimum size for the slot opening. Nothing new, old news.... Euthanasia knows this, he follows this...

It's also nothing new for the TVS guys to see a gain larger than 1% when bolting on a ported manifold. Also old news...

Has anybody even bothered to ask what the OPs over all setup is or will be?
This will determine whether he should even bother dropping any coin on any porting.

 

ive seen that you work with euthanasia with some things. do you know how much he would charge for ported head work and what the length of time would be taken to get one done. i guess such talk would have to be done through a pm, but if you dont mind, id appreciate it

 

Sorry I'm not familiar with his current pricing. Euthanasia is a one man team, I only take care of the tuning portion.

Your best bet is send him a PM

 

i hear ya. i only asked you because i dont see him post much. but ill do that. but thanks anyways

 

He's around, he's been busy lately with a couple heads and a centrifugal project.