EH3forlife

Well after comming to a hiccup in my current b20 vtec build (parts for the head being backordered) I just decided to slap on a 100% stock 99 B20Z2 head with 100k on it and run it for now while the shipment comes in because I needed my car as it is my daily.

The setup is as follows:

BLOCK:
85mm B20Z2 block
Eagle 89mm lightweight knife edged crank
Eagle Rods
11:7:1 compression with P75 head

Head:
99 B20Z2 P75 head 100k miles (untouched)
LS intake manifold
LS Throttlebody
Stock Cam Gears
Stock Cams
Stock throttlebody
Paper Intake manifold gasket

Exhaust:
SMSP B19 Header
Full 3" Exhaust

Intake:
3 inch short ram with BPI velocity stack

Tranny Y21 Hydro w/ ls 5th gear

The main reason for the dyno pulls were to check the air fuel ratio because I was running the B20 basemap that hondata provided which I added 5% fuel for the extra 1mm of bore and I took out 2 degrees of timing for the added compression to be safe. So anyways here is a pic of my first pull versus the last (just added 3 degrees timing and a little more like 4-5 degrees between 3.2 and 3.8k no fuel adjustments were made):


Once I did that I decided id try to take the filter off of the velocity stack and see how much more it would make. Here is that graph:

Compared to the first pull:

So then I decided to but my exhaust silencer in to see how bad it would choke things up:

A combination of all the runs:


The air/fuel line was set to 13:5:1 fyi
The wideband was removed during the silencer run and was not in place during that run.

Not bad numbers considering the stock stock head and it wasnt fully tuned (still had some left). With a set of cam gears and more timing im sure it could hit 165 maybe 170. What do you all think?

overrev_it

i think its nuts and that you are having a kicking powerband with stock cam and intake manifold

i might be doing a similer stock internals setup with close cr and this thing gives me hope

K7-1Ktrevor

thats a pretty cool comparisson. any plans for building the head? that thing would be alot of fun with some 404's and port work and a cheap i.m. or b16 modded im.

h23V

I would do the 405's y does everyone do the 404's if u wanna make 200 plus whp why not go 405's.

kicken90crxsi

hows the street ability driving on 405's on a daily basis ?

h23V

Don't think u would like to driver them on the street lol. If for a street car 404's or delta cam regrind and stay with the stock valvesprings they work really well on my f22 non vtec build i did 6yrs ago.

I'd really would like to see someone use the delta 272 regrind and tuned and see what numbers u would make i think u would be very surprised.

smlblkpro

thats a nice gragh, i got a b20 non vtec i biult, im tryin new and very different things, have'nt been dyno, been alot of track testing,
set up: B20b block oem internals
total seal gapless top rings 0.023 gap
P75 head minor port work thinned splitter and shrunk port with epoxy
shaved 0.060 off head delta regrind cams 272 degrees
stock ls intake and tb, custom header 4-1 long tube
stock pr4 ecu, i have a chipped pr4 and 450cc injectors now
in a 90 gs integra body prolly around 2650-2550 wit driver(210lbs)
2.0 60ft, 5.7 330ft, 8.8@79.4mph 1/8mile

smlblkpro

i think u can make more power, if i were i wouldnt change the manifold as of right now, bigger tb yes, cam gears yes, i like the way your power band changes with simple changes and this is the kind of nonvtec dyno i've been waitin to look at, i think alot of aftermarket manifolds out there for the nonvtecs worsen the power band on them, im in the process of making a custom manifold for one, but i need to stop being stubborn and go obd1 and get it tuned

AltimaXX

OP, ignore the stock valvetrain comment...stock LS valvetrain can't even handle stock LS cams much past the stock redline. With 404's you'd probably run into coil bind, aside from the valve float.
Good luck with the build...hope things come together for ya.

h23V

IF u know nothing about grinding camshafts then u shouldn't comment and we aren't talking about reving to 8,000rpm we are talking about lift not duration. As a matter of fact alot of the d series single slam guys use these cams alot and i even used them in my f22 non vtec had no problems with valvetrain what so ever revving to 7500rpm.

AltimaXX

Right, I don't grind cams, so I'm an idiot.
Just so you know, D- and F-series are completely different motors from B-series, and specifically non-VTEC B-series. Just because "alot of the guys" get away with that on single cams does not mean that it's safe with a DOHC motor(and it isn't, FYI.) I am aware that you can get away with a lot more on stock SOHC valvetrain, but LS motors don't have that blessing.

Perhaps post with more caution in the future...it's not you that'll be paying to repair the damage your misleading posts could cause to someone else who doesn't know better.

h23V

Really ls cams and h22 regrinds have been done that i have seen from freinds and alot more people actually dsm and other's u never here about it b/c it was done on a budget.

Maybe u should read post 7 he also has regrind cams in his b20 nonvtec turning 7500-8000rpm at the track last friday.

And if something goes sour in the head it would be the installer fault delta will back up there company if the cam breaks but i have yet to hear about complaints related to that just do some research guy. Think outside the box alittle sometimes instead of what everybody is already using.

Also for FYI did u know one pretty good company that does regrinds is called Webcams that's what made there name.

h23V

And the the 404's i never said that u can run 404's with stock valvtrain i am only talking about regrind cams. Delta cam will tell u when they would recommend an upgraded valvetrain. Maybe u should give them a call a listen and learn a few things and ask them how can u run stock valve train with putting more stress on the valvtrain.

AltimaXX

I never said one word about reground cams
...but was the rant fun?

h23V

goforbroke

What filter are you using with your intake?

tempsohc

I had jG 303 regrinds in my ls. Withs tock valvetrain. valves would float at 7500. B20 and LS share the same heads. BS on shifting at 8k. Unless your just floating the valves hard. You need full valvetrain and require atleaset 8k rev to make 200whp. IMHO