I know that a stock type r engine is faster than a stock gsr engine but my plan is to build, not keep stock. so the question is which is a better platform to start with? i plan to bore it, stroke, and pretty much upgrade most of the internals and add forced induction(turbo) so in yall's opinion which is better or does it matter or should i just go with what ever is cheaper to get my hands on. Thanks

 

Essentially it won't even matter since you're replacing the majority of what makes a Type R what it is. Start with whatever is cheaper.

 

Both are similar engines in many ways.....it comes down to price that you can find. A type r has a better head.....mild polish, lighter valves, better cams and intake manifold. The bottom end has stronger rods, higher comp pistons, and a better counterbalanced crank. It's worth extra, but how much?

For me, I bought two type r engines, one with a bad head, one with a spun rod, got them both on the cheap. Mated the two together, sold off all Cora parts and I was into a minty B18C5 for under $500

 

GSR. Don't waste money on the R if you plan on building.
The Type R head IMO is over rated. Get a good valve job, stock ports will work just fine. GSR head also ups the comp ratio a little bit and has quench pads.
If you build the motor properly and have it balanced, the R stuff has NO added benefit IMO

That's my .02, I'm not an R parts nut swinger. I like to go fast.

Good luck

 

Thanks!!! I'll sure need it

 

gsr has better quench area that supposedly helpt prevent detonation better.
and gsr has higher angle intake ports. that help flow in certain areas.
theres flow charts for b16 and gsr and they are almost identical as far as flow but each has ups and downs in different spots..
if you want to save money on port job then you can find an ITR head

another advantage of ITR head is it shares the intake manifold with B16
intake manifolds for b16/itr are always cheaper than for gsr and there are many more available for sale.

 

negligible if you're building the engine overall anyway

Again, in negligible amounts if building the entire engine overall.

Noooo. The value of an ITR is MUCH higher than taking a GS-R Head and doing a reasonable port/polish job. Perhaps your quotes are off.

Now you're just talking to talk. New or used, they are the same cost!

That's based upon the OP's ability to find what they need, but not a reason to just choose one over the other. C'mon... On PAPER your logic is sound. As an applied application, your reasoning is flawed.

 

Regardless of his ability there are still more manifolds available and for cheaper price.
I found that out when searching for aebs manifold
but i looked for pretty much every other manifold and they all same. B16 is much more available and cheaper
when was the last time you checked? In general b16 manifolds are about 50 bucks cheaper no matter which one you pick.
Even brand new. Aebs manifold is 200 for a gsr and 150 for b16. Just an example

 

Ok. Let's see. For the purpose of ease of this comparison, I'm going by source pricing of MSRP and not going through the searching of 50 different sites of proprietors, because the same trickle-down of Jobber pricing will vary. I'm going with 2 main companies and 3 manifolds. Skunk2 and Professional Products (where AEBS get's there stock from)


Skunk2 Ultra Street Series

Oh wait... they fit BOTH bolt patterns because its the same part number of 307-05-0505 at $451.49


Skunk2 Pro1 -

307-05-0295 - B16 / ITR
$314.99

307-05-0270 - GS-R
$289.7

Wow. The B16/B18C5 is actually more expensive if we went by the source price.

Ok. Moving on

AEBS / Professional Products (a division of Nickel's) Intake manifold that's mainly sold by Summit Racing.


#59003 GS-R - Summit Racing
$132.97
$167.97 (polished) (#50092)

Professional Products Whirlwind GSR Intake Manifolds 59003 - Free Shipping on Orders Over $99 at Summit Racing
Professional Products Whirlwind GSR Intake Manifolds 59002 - Free Shipping on Orders Over $99 at Summit Racing



#59001 Type R/ B16 - Summit Racing
$132.97
$167.97 (polished (#59000)

Professional Products Whirlwind Type R Intake Manifolds 59001 - Free Shipping on Orders Over $99 at Summit Racing

Professional Products 59000 - Free Shipping on Orders Over $99 at Summit Racing

Edlebrock Performer X Is the only one in which you're close at a $14 difference..

#4771 GS-R Summit Racing
$404.77
http://www.summitracing.com/parts/edl-4771

#4774 - B16 Summit Racing
$390.25
http://www.summitracing.com/parts/edl-4774



A whooping $14.52. Not even a full tank of gas difference. And this is NEW. For the used stuff, again, negligible.


So, really, there's very little difference. If you get a good GS-R head over some B16 that you find, in the NA world, you're MORE than fine in getting to your goals much more easily overall.
If you're crying over $14.53, then you need to get out of this hobby and do something else.

 

i meant used ones. They might be what you posted at the moment but ive been checking prices on manifold for last 3 years.
And in general i can find a b16 manifold for much cheaper than gsr
Especially used one.
Last year the aebs gsr manifolds were selling for 200
And b16 were cheaper

Used aebs manifolds for b16 are everywhere for 100-120 dollars
i see a gsr aebs manifold show up once in a while and usually for 150-180

 

Well hell, you can find ANYTHING used, for a right price on average. That's just market demand. that's no reason to say overall one is BETTER TO GET than the other. You implied this comparison overall. That's why I kept my mode of comparison to a single high-end seller with new products. Otherwise, there's NO way to qualify your 3 year self-diagnostic metrics..

 

All of this really depends on what you're building the engine for/what your goals are. The sky is the limit with options but we would need to know goals.

I think the problem people have is starting a build without planning and expecting it to all work itself out. Outside of horsepower (cause everyone loves numbers) you reaaaally should think about what you are going to use the car for. Be honest to yourself, and your wallet. Make plan, research, ask questions, find out what real world expectations are, and then stick to the plan.