RB Forum - Chat Thread

[flatrate]

my new manifold divided T4 im going to be using a divided T4 3076R

Im aiming for 450whp or so

the manifold isnt on my car its on the fabricators

[EVILS14]

nice.. how much that run ya

[flatrate]

1400 usd

[s14_sport]

thats a sick a** manifold!!!

im loving the fact that more divided options are coming up for the RB's besides full race for much much cheaper!

When are you going to be done with your setup? I would love to compare dyno sheets with my much Larger Bullseye S362

[flatrate]

im hoping within the next few months i just finished the motor build and swap... and im waiting for the series 2 AEM to be released in late november...

I also have a GT35R that i could put on but i dont know if i really need that kinda power in this car...

[95-S14]

Who made that manifold? It looks very nice.

[240AceX]

Looks like a Full Race mani to me. I recognize those robotic arm welds. I just held one of those in my hands last weekend, compliments of Coolwhip @ RawBrokerage. His had the Full Race Logo badge on the front runner. If you paid $1400 for it I need to know how you got them to chop the price? I want one.

[EVILS14]

Looks like a Full Race mani to me. I recognize those robotic arm welds. I just held one of those in my hands last weekend, compliments of Coolwhip @ RawBrokerage. His had the Full Race Logo badge on the front runner. If you paid $1400 for it I need to know how you got them to chop the price? I want one.

x2

[Coolwhip]

the manifold referred to above is not a full-race, yet a very well crafted manifold at that... very sexy!

I believe a few posts back it's mentioned that his fabricator whipped it up for him and in that picture is installed on the fabricator's motor and not his own.

[240AceX]

Nevermind its not the same mani. I see the differences now. Those welds are sexy looking though I agree. Someone else has a robotic arm welder then. Who are they? After seeing yours I want one of those manis bad

[Coolwhip]

haha, Ace, you know you'll be rolling with a stock intake and a stock exhaust manifolds :P your a stock manfiold type of guy deep inside.

[95-S14]

LoveFab? PeakBoost?

[johnny butt]

I never usually talk about my motor setups but I was bored today at work...lol

6Boost T4 Divided Manifold RB25



beautiful manifold - thanks kayton!!

so these divided (twin scroll?) manifolds are supposed to help low-end power/torque out? How does it handle with top end, or is that still a runner length issue?

I've been doing a bit of research towards my motor build lately, and I think I might spend the extra $$ for a divided turbo & manifold if the power band can be justified. I am building my car/motor for auto-x/road courses and would like a suitable power band. Not 100% sure on my max power goals yet, but I think anywhere within the 360-450 HP range should be good. 500-600 would be ideal but I'm afraid it'll be overkill on my s13. Suspension is already built, so no worries there... See here..

[Coolwhip]

LoveFab? PeakBoost?

neither, his is custom

[sean@z1]

http://www.goo-net.com/cgi-bin...51010

Check out this crazyness With the N/a Autech R32

[240AceX]

I must admit, I do like my car as close to the way Nissan built it, as possible. But I will change my mind later on when I try to add a couple more horses to my carriage.

[240z4u]

It suprises me to see all these 1,400+ dollar manifolds on motors looking for 450whp. Makes no sense to me since it is very well known that the stock manifold can support those numbers easily.

The ONLY way someone could convince me to buy a tubular header is by having before and after dyno charts. How much power is being gained? Where is the power?

Has anyone actually seen before/after numbers for any of the tubular manifolds? I would love to see them if so, they might change my mind.

Evan

[240AceX]

Wow dude you took the words out of my mouth. Coolwhip and I was havin this conversation this past week. That is exactly how I feel. I understand the material and skill it takes to produce these manis. I am in no way trying to downplay these products. I am sure they work as well as they look. But how do you convince me to invest on your mani the same amount of money I spend on a full NEO set up. I guess u dont. Maybe you show me the hp gain on the same setup with you mani vs a stock one. As my brother put it; different people value the same things differently. I value turbo, you value manifold. Anyway this is just my opinion and just like we all have one.

[EVILS14]

so how much hp can you get out of a stock ex mani

[johnny butt]

It suprises me to see all these 1,400+ dollar manifolds on motors looking for 450whp. Makes no sense to me since it is very well known that the stock manifold can support those numbers easily.

I don't know if this was directed to me or what...since I posted the 450 number...But I haven't actually bought a new manifold yet...just asking questions & trying to research my options...

I think people going with different manifolds are looking for something other than a t3 flanged turbo. However, a 3076R should support close to 450-500WHP, I thought, and fit on stock manifold. I planned on going that route for quick response and nice power band. I just wanted to know about this whole twin-scroll thing and if it was worth it as far as the power band & torque goes...

[Yellow4g63]

I think the best be would be to search log manifold vs tubular manifold for hp gain. The stock manifold is very very close to a log manifold other than the runners are a little longer that most.

[EVILS14]

full-race did the test on a b18 and this is what they come up with RESULTS: SWAPPING MANIFOLD = ~68.3 whp peak gain before tuning, ~48 whp after tuning, ~49.7 ft/lb before tuning, ~44 ft/lb after tuningand they also claim it added 60hp to the sr20
Modified by EVILS14 at 6:11 AM 11/4/2009

[s14_sport]

I just wanted to know about this whole twin-scroll thing and if it was worth it as far as the power band & torque goes...

True Twin Scroll setups are known to spool anywhere from 500-1000rpms faster then their non-twin scroll equivalents.

IMO....well worth it.

[flatrate]

THe manifold was made by AFI (arizona forced induction) there right next door to full race...

i wanted a tubular because there is power gains... car will hold torque better and response is better... also i may run something bigger in the future

and the stock manifold is just ugly

[240z4u]

Don't get me wrong, if you want to buy a 1,400 manifold thats perfectly fine with me. I am not passing judgement.. seriously..

The stock manifold is twin scroll.

It was more of a hypothetical question than anything else, and i was curious to hear peoples thoughts on the topic. This is just conjecture here folks, don't get all huffy about it.

Evan

EDIT;

I don't really care about added peak #s if you have to give up a wide torque curve, hence why I wanted to see an actual chart as opposed to a few numbers. I understand a good manifold is capable of making more power, but where is it and can you tell me that a 400hp setup will make 450 with just a manifold change? I doubt that. I do believe that a 850hp setup could gain 50hp though...

Modified by 240z4u at 2:35 PM 11/4/2009
Modified by 240z4u at 2:39 PM 11/4/2009

[RustspecS13]

Good news! Nismoparts.com called today and they FINALLY got my rb20 gasket kit in stock!!! WOOO HOOO

Now I don't have to worry about a head gasket and exhaust manifold gasket, AND I (obviously) have all the other gaskets too.

Now I just need 24 good rb20 valves. Any one?

So it looks like my rb will be back together soon! Awesome no need for cheap ka24e-T to satisfy my boost hunger.

Needless to say it was a good day

~Alex

[Yellow4g63]

get the cosmetic exhaust manifold gasket, it's reusable and cheaper.

[RustspecS13]

I was thinking about it and I probably would have gotten one this time but then my whole set is being shipped now. And all my next extra money is going to buy nistune, and after that Ilm getting a new turbo. I hate that 13psi limit...

~Alex

[flatrate]

Don't get me wrong, if you want to buy a 1,400 manifold thats perfectly fine with me. I am not passing judgement.. seriously..

The stock manifold is twin scroll.

It was more of a hypothetical question than anything else, and i was curious to hear peoples thoughts on the topic. This is just conjecture here folks, don't get all huffy about it.

Evan

EDIT;

I don't really care about added peak #s if you have to give up a wide torque curve, hence why I wanted to see an actual chart as opposed to a few numbers. I understand a good manifold is capable of making more power, but where is it and can you tell me that a 400hp setup will make 450 with just a manifold change? I doubt that. I do believe that a 850hp setup could gain 50hp though...

Modified by 240z4u at 2:35 PM 11/4/2009

Modified by 240z4u at 2:39 PM 11/4/2009

Tubular manifolds seem to make worthy differences on alot of other engines... The factory twin scroll is lame ...it has NO merge what so ever... from what ive seen ( which is just manily looking at dyno charts of RB engines)... the power curves and over all power is better over the stock manifold from the same turbos... RBs seem to drop torque in the higher RPMs more so with a stock manifold than a tubular... which is normally coralated to exhuast breathing.. seems alot of people run smaller turbos on these engines also so having the stock manifold would be fine for that imo

[95-S14]

Well maybe just swapping to a tubular setup wont get you huge peak gains, but I'm sure it has to affect spool and give you greater area under the curve. It wouldnt make sense for a better breathing setup to not mak a difference.