HomemadeTurbo - DIY Turbo Forum - Got my 14b LS back from the Dyno!!

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Re: Got my 14b LS back from the Dyno!!

Alaniz used to have a bunch of stock flowcharts up on their website. 28" water, .500" lift, I'd guess in the 205-215 range. With pimp valvejob will flow as much as unported VTEC head, 230. Highest I've ever heard of stock are a couple ITR heads (quick and sleazy factory ported) in the ~240-250 range - the one I touched made 191 whp stock longblock with boltons.

Re: Got my 14b LS back from the Dyno!!

Quote:

Originally Posted by Joseph Davis

No, I like the 4G63, I just hate everything *attached* to the engine. This doesn't mean that I am not wholly correct in my statement that an LS head flows more.

What the 4G63 has going for it is the ability to take a fuckton of heat and never fail, and the ability to handle a fuckton of power on top of it when DSMtards grow a set of balls and bolt on something bigger than faggot 16/20G. It's ability to handle large quantities of airmass is most excellent, and this is why Joey likes it.

4g63 combustion chamber sucks ass. The valves have more shrouding than a smallblock ford, and the lack of quench area+ shitty ic, intake, etc. leads the engine to be prone to knock at realitively low power levels. In fact, this is one of the only engines still in production that you have to "tune for knock" For the record, the 4g61 head has a much better combustion chamber, but flows poorly comparied to the 63'
JD is right on target about the heads. Big ports do not equal a high flowing head, or an effiecient engine for that matter. This is one of the many reasons I'm building a Honda and will not own another dsm. :6

Re: Got my 14b LS back from the Dyno!!

I fully understand what you're saying JD, and I won't argue any of the points you made either. As far as i can see it, the only thing nice about a 4g63 is the cast iron block, everything else is pretty much like you said...junk. I've had to rebuild my friend's boss's 4g63 3 times so far, 2 times because of crank walk, and once because he over-revved it and lost all the rockers.

Quote:

Originally Posted by Joseph Davis

All of this has -->zero<-- to do with the fact that an LS will max a 14b well before 20 psi. Hell, a SOHC sucks one dry at 14-15 psi - you are aware of junk flowbench number discrepancy between D16 and LS heads, aren't you?

I'm aware of the LS/14b matchup. Honestly I did like the way it ran the last time I did it. I'm not a big fan of waiting for boost until almost 5k, I like quick boost seeing that the car is mostly street driven. I loved the response it had, 8psi by around 3200 and ripped hard all the way to 7k at 14psi, then started dying off a tad but only by about 2 psi. Only problem was I had to crack the wastegate open a hair, otherwise it would spool by 2200rpm and would detonate like crazy...which I blame on trying to use a vafc for managment untuned. The larger exhaust housing should help out some, and now that I have a straight exhaust (instead of the standard EF way-too-many-90's exhaust) it should do a bit better. Honestly if money wasn't such an issue, I would look into larger t3/t4 setups.

Re: Got my 14b LS back from the Dyno!!

2G 4G63 shouldn't be mentioned in the same forum as 1G 4G63. If the man was building a 2G it's due to INBREEDING.

Re: Got my 14b LS back from the Dyno!!

Quote:

Originally Posted by Joseph Davis

2G 4G63 shouldn't be mentioned in the same forum as 1G 4G63. If the man was building a 2G it's due to INBREEDING.

Only good thing I've read on 2g heads is you're able to port them to flow better than 1st gen, but mind you...that's second-hand info and not something I can vouche for firsthand. :-\

Re: Got my 14b LS back from the Dyno!!

14b on a sohc is a ------- great match up

Re: Got my 14b LS back from the Dyno!!

Quote:

Originally Posted by bitchasscracker

14b on a sohc is a ------- great match up

Damn right it is. I've been tempted a few times to sell off all my b-series motors and just build a D for much less money with another 14b. Most fun I ever had with any motor, B or D series.

Re: Got my 14b LS back from the Dyno!!

Quote:

Originally Posted by CspecRun

DSM guys have gone as fast as 12.20's with the 14b(but NOT stock), and that's a pretty heavy car

Actually there was a guy with an all out race FWD that went TENS! I'll See if I can Find the link

Re: Got my 14b LS back from the Dyno!!

Quote:

Originally Posted by TheMadScientist

Actually there was a guy with an all out race FWD that went TENS! I'll See if I can Find the link

I already posted the link. Post #17

Quote:

In a very lightened/stripped FWD DSM its been all the way down to 10.8's I don't recall whether they used the 6cm exhaust housing, or swapped to a 7cm.
http://www.joebucci.com/Goodwill1.html

Re: Got my 14b LS back from the Dyno!!