cksnah252

Whats up HT, I have a question.. Tried searching but want to make sure if this manifold would give me gains. My setup is
B20v
-b16 alaniz competition ported package
-endyn bumpstix cams
-supertech valves with skunk2 titanium springs and retainers
-skunk2 pro series manifold port matched to omniman 68mm t/b
-85mm wiseco k59485mm (13.0:1 compression)
-rmf narrow replica headers

Car made 229whp and 167tq on 93oct

If I get this manifold, would i need a new tb? Would i see any gains with the 4piston port and polished ultra street manifold?

93egSLEEPER

I would put the money towards a different header first honestly.

You wouldn't NEED a bigger TB, the one you have would work just fine. The bigger TB will allow you a little more peak HP if anything. Probably nothing really worth the $$$

I don't know if getting the S2 street is worth the money over the pro series either. Just my .02

cksnah252

Oh i see... I was checking out Jignesh's B20v motor and i was pretty impressed with his gains... What kind of headers you recommend bro? Thanks

EDIT: I made 230whp at 8500rpm and i dont want to rev any higher than that let me know thanks!

93egSLEEPER

What kind of budget are you on?

Jignesh changed ALOT on his setup so it's hard to say a S2 intake will give you much over what you already have.

cksnah252

Well i dont want to spend too much, but for an all motor every little counts... I just need some of your guys input thats all, if you dont mind.

OMG

go 74 or 75

cksnah252

Wouldnt that move my power band up to a higher rpm?

93egSLEEPER

Typically yes it does....allows you to carry the power further as well. Average on street motor is 5-7whp from 8k up

OMG

use with a matching intake pipe

It's part the design

cksnah252

Problem is that I really dont want to any higher than 8500rpm to make power. I mean if I get the ported manifold, wouldnt I see gains compared to the one I have now? Also headers, you think Ill see better gains with the big tube tri-y? Oh I'm running 3" exhaust as well! Thanks!

93egSLEEPER

If you start making everything "bigger" you will make power past 8500. The ported manifold, bigger TB, and bigger header SHOULD allow you to carry power up to 9k, at least that is my opinion. If you want to focus on making power in the mid range and up to 8500 I would stick with the Toda rep header, a 68-70mm TB and the intake manifold you already have. It's kind of give and take if you dont want to make power or rev past 8500. Get as much peak in at 8k as you can. All these bigger options will shift everything up.

Someone else feel free to chime in, this is my opinion based off what I have seen.

F22Master

Get a ported P30 IM. It will shift your powerband down the rpm range. You might lose a few hp up top, but you should see a good midrange bump. You could try the TODA header, but that RMF should do pretty well as-is.

OMG

what's wrong with making power with rpm, this is not a v8

cksnah252

I do understand its not a v8 but with stock 85mm b20 sleeves Im kinda pushing it especially with high compression pistons. Well Ill do some more researching..

I guess Ill end up grabbing the manifold then. Hopefully I dont have to rev up to 9k lol but any gains is fine I guess.

93egSLEEPER

Shouldn't be a worry if its tuned and built properly. What fuel is it running on?

F22Master

If you want to lower the powerband, that is NOT the manifold to get...

93egSLEEPER

Performer X or as mentioned a ported P30 would be the best bet for keeping the powerband lower.

wunfstgsr

You will deff make more power switching from the pro series to the ultra, This is pretty irelivent couse i dont have a before and after dyno to share but Im still working on my new setup and one of my most recent mods was swapping my ported pro series manifold and 68mm tb to a unported ultra street manifold and 74mm tb. Still haven't retuned it cause my last tunes AFR still runs the motor fine but i can feel a much more better broader power band, just feels allot more peppy. I would of dyno tested it but I want to put my Supercharger back on and dyno it then. But i think I'm gonna head out to my tuner and do a dyno anyway because I'm so curious what gains i made from swapping from the pro series and 68mm tb to the ultra manifold and 74mm tb.

But after i upgraded the Tuner 1 cams just recently to Tuner 2 cams it went rich in vtec but part throttle and idle is still good but this is one of the reasons i kind of want to retune even though I'm babying the motor until the blower gets back on but maybe ill have some dyno info to share soon if i have time.

93egSLEEPER

^^^ Not to thread jack but you got richer AFR after the cam and IM swap? Typically that means you LOST power because less fuel is needed.

d15Beta

its all related to tune
cracking or busting a sleeve typically is related to "pre ignition" and "detonation"
thats unheard to the driver's ears (but existent)

typically this from lack of tune (or incompetent tune)

we've seen b20 block/sleeve's handle low boost quite fine
and thats prolly making more whp than wat we could pull in n/a form

so

rpm = make sure parts are good to handle it (generally most forged pistons are a safe bet)
double check their balance, dont rely on mfg. or sales rep to say "yes its balanced"
get them down to 0.1g atleast if possible
same with the rotating assy. (crank , pulley , flywheel and press. plate)
and rods... have a talk with the machineshop and or machinist
let him know the rpm's u intend to turn...
dont rely on a vague " its a balanced rotating assembly " ask for the print out
they should have it.. have them explain to you the pre balance (unbalance) and post balancing work result etc.. its all about tolerances.. both motors can be balanced
one could be balanced to a HIGHER tolerance... the other not..

tuning = make sure the tune is up to par.. and no not just WOT tune on the dyno
unless ur always WOT on the streets, part throttle tuning is critical to engine life
example two different tunes both no ping/det audible
but one of the two tunes wont let the engine last that long... LOL


while i understand your bottom end is already assembled and running
i figure this relevant info might be useful for others..
------------------------------------------------------------------------------------

id suggest a p30 IM (ported) but knowing your 85x89
that plenum size will fall flat after 8k or even by 7800rpm
(so no i wont suggest the p30 unfortunately)

Ultrastreet might work for both mid and top end for you
PerformerX would be a good cheaper option too (would prolly peak around 8500)

endyn/s2s2 inst that big of a cam

so having the cam to intake relation in mind (aswell as the exhaust)

id lean towards the ff:
PerformerX
AEBS
Ultrastreet

in that perticular order, for use/price effectiveness

wunfstgsr

It just needs to be retuned.

blacK_Dc4

depends on what you want. are you ok with losing some power from lets say 4000-5500rpm to make a little more from 6500-8500rpm? if so, the Ultra-Street may be a good choice. I would def. get a 74mm TB to maximize the gains. Make sure you have an intake pipe that is at least 74mm+

The PerformerX is another good intake manifold to think about. I wouldnt worry about spending the extra money to port it until youve found the design that works with your setup.

cksnah252

I see a lot of great response towards the ultra manifold and 74mm throttle body! So the manifold I will purchase! Ok, you recommend not to get the port manifold yet, just to see if I'll see any gains. I will just purchase the regular non ported one for now to see any gains. Unfortunately my tranny started going on me, and now I have to get that fixed first. But thanks H-T members for helping and giving me advice! I will get back and revive the thread (i dont know if its a good idea lol) in a month or 2 to see any gains! Again thanks guys!

d15Beta

yes non ported... this way u can sell it still and have a bigger market of buyers

should u change directions once again..

good luck and pls get back to us with ur findings

and have fun!

viperjng

[/B]Hi,

Just happened to see this thread. The changes made to my setup were S2 Ultra Street, S2 ALpha 70mm throttle body, DD tech cams, Hondata Coil Pack Retrofit kit and a Logic Motorsports Tri-Y header vs OBX 48mm ITB's S2 Tuner 2 cams and cracked & dented 4 year old DC Sports 4x2x1 header.

Injectors were the same 440CC

Hope that helps.

Jignesh