poor man's type r???

[b16civic4do]

I'm thinking about going with poor man's type r setup. I have the b16 head port and polished with a 3 angle valve job and stock gsr block. I was just wondering if anyone has any experience with this setup and any problems they ran into? Any advice would be great.

[japan4racing]

kyle has one..it was ok i guess. i just never understood the dynamics of it...a b16 head on a gsr block lowers compression right? why would you want a lower compression n/a motor when you are trying to get more performance? maybe i am jst missing something here because its a really popular thing to do and many ppl have had great success with it

[speedminded]

http://www.c-speedracing.com/howto/compcalc/compcalc.php

[japan4racing]

lowers it by .2 by my calculations on that site. stock b16 head on stock b18c1. now if you go changing pistons at the time of the swap i can def see where you could get crazy. b16 block with gsr head and p30's get you 10.65:1...rad

[speedminded]

lowers it by .2 by my calculations on that site. stock b16 head on stock b18c1. now if you go changing pistons at the time of the swap i can def see where you could get crazy. b16 block with gsr head and p30's get you 10.65:1...radHow did you get 10.65:1?


Block = B18C1/C5
Head = B16a/b-B18c5
Piston = p72-A0 (USDM B18C1)
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM B18A/B/C1/C5 - B20B/Z

Compression Ratio = 9.80



Block = B18C1/C5
Head = B16a/b-B18c5
Piston = p73-A0 (USDM B18C5)
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM B18A/B/C1/C5 - B20B/Z

Compression Ratio = 10.60

[japan4racing]

How did you get 10.65:1?




instead of gsr bock with b16 head i swapped them around and tossed some p30's in the mix

Block = b16
Head = b18c1
Piston = p30
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM b16

Compression Ratio = 10.657

[speedminded]

instead of gsr bock with b16 head i swapped them around and tossed some p30's in the mix

Block = b16
Head = b18c1
Piston = p30
Head Gasket Thickness = OEM B-series 3-layer
Piston-to-Deck Height = OEM b16

Compression Ratio = 10.657b16 block with a p72 head?! That would be retarded, GS-R heads can't breath like a b16/b18c5. Higher compression isn't always better if the head doesn't flow well.

[SixSquared]

^^Word. :D Pretty much the only thing GSR heads have going for them is the IAB's in the intake mani, and those are only so cool for so long.

[japan4racing]

b16 block with a p72 head?! That would be retarded, GS-R heads can't breath like a b16/b18c5. Higher compression isn't always better if the head doesn't flow well.

you got me all wrong bro..reading comprehension owns j00! it was just something i noticed. i was not reccomending it all...jeebus you guys need to calm it down a bit! let me make it more clear.....i made an observation that that combo made a slightly higher c/r. i found it interesting so i shared. you guys dont need to try and prove your uber elite internal combustion engine knowlege to me.

[speedminded]

you got me all wrong bro..reading comprehension owns j00! it was just something i noticed. i was not reccomending it all...jeebus you guys need to calm it down a bit! let me make it more clear.....i made an observation that that combo made a slightly higher c/r. i found it interesting so i shared. you guys dont need to try and prove your uber elite internal combustion engine knowlege to me.Then use a b16/b18c5 head slightly milled or a thinner head gasket or a taller piston and have way more than 10.6:1...the GS-R head sucks, sure it's a higher compression but its smaller valves and does not breath as well.

[japan4racing]

Then use a b16/b18c5 head slightly milled or a thinner head gasket or a taller piston and have way more than 10.6:1...the GS-R head sucks, sure it's a higher compression but its smaller valves and does not breath as well.

hey guy..it was an observation. im not trying to sway the honda world into building a motor like this. i am very aware of how to raise and lower compression. give it up already. cant a man make an observation without all the vtak boys jumping through hoops to make a point? i never said a gsr head was good..where do you kids come up with this ****? its like you read what someone says and in your mind you change it to somehting that you can argue about....i dont get it.

[dELfONiK]

hey guy..it was an observation. im not trying to sway the honda world into building a motor like this. i am very aware of how to raise and lower compression. give it up already. cant a man make an observation without all the vtak boys jumping through hoops to make a point? i never said a gsr head was good..where do you kids come up with this ****? its like you read what someone says and in your mind you change it to somehting that you can argue about....i dont get it.

Then use a B16 head... haha, jk!

[southside]

I'm thinking about going with poor man's type r setup. I have the b16 head port and polished with a 3 angle valve job and stock gsr block. I was just wondering if anyone has any experience with this setup and any problems they ran into? Any advice would be great.what pistons you using?

[JITB]

mmm honda talk

[jaystar]

im running this set up now on type r pistons and valves and retainers cosmetic head gasket arp headstuds and competition clutch. the head is a b16 with a gsr bottom has nice top end

[JITB]

im running this set up now on type r pistons and valves and retainers cometic head gasket arp headstuds and competition clutch. the head is a b16 with a gsr bottom has nice top end


fixed... :cheers:

[AnthonyF]

^i caught that too


give Mr. Kidd a PM. he will help you out

[speedminded]

^i caught that too


give Mr. Kidd a PM. he will help you outYou know, those cosmetic head gaskets...the ones you get a Macy's and you paint them on with the little brush. They even come in differant shades to match the color of your block!

[AnthonyF]

lolol. When i first read it, i was like "he placed a headgasket on his valve cover?"


2 of the most intelligent people on this site battling. lol.

[jaystar]

fixed... :cheers:

damn i did not even catch that oops thanks

[LS2ner]

Then use a b16/b18c5 head slightly milled or a thinner head gasket or a taller piston and have way more than 10.6:1...the GS-R head sucks, sure it's a higher compression but its smaller valves and does not breath as well.


But doesnt the p72 head have the flat edges on on the combustion chamber which reduced risk of detonation?

[EK Hotch]

detonation ftw!!....jk lol

[speedminded]

But doesnt the p72 head have the flat edges on on the combustion chamber which reduced risk of detonation?If the P72 combustion chamber is flatter and a few cc's smaller don't you think that would increase detonation?

As long as premium fuel is being used the chances of detonation on a stock GS-R/ITR is slim to none anyways.

[b16civic4do]

what pistons you using?

Thanks for all the comments guys. :goodjob: I have dual valvespring and retainers and ctr cams that I'll be using and probably go with type r pistons

[seanrg1116]

i am kind of new to the honda building but would you not get better results with a B20z with a b16 head on it?

[speedminded]

i am kind of new to the honda building but would you not get better results with a B20z with a b16 head on it?Sure, if the sleeves don't crack. ;)

[khaxnguyen]

i was in one long long ago. the guy had type r internals though. whipped an 07 SI. =P

[psycho_freke]

I dunno if this will help, but I was scoping out this page on honda tech about building a type-R bottom end the other day:

http://www.hondatuningmagazine.com/tech/0702_ht_type_r_bottom_end_build/index.html

[LS2ner]

If the P72 combustion chamber is flatter and a few cc's smaller don't you think that would increase detonation?

As long as premium fuel is being used the chances of detonation on a stock GS-R/ITR is slim to none anyways.


I think what i was thinking of is called "quench pads" maybe?

I know Mike (Vteckidd) said GSR heads were better for that reason, but im not sure. From what reading ive done, the GSR will make a lil better mid-range compared to the pr3's top end. Im not saying your wrong Speedminded, was just asking about the specific detail on the p72's.

[southside]

i was in one long long ago. the guy had type r internals though. whipped an 07 SI. =Plol who doesnt whip those

[southside]

i am kind of new to the honda building but would you not get better results with a B20z with a b16 head on it?more torque less reliability due to b20 thin walls,High rpm+b20=boom unless great amount is spent to make it reliable

[khaxnguyen]

lol who doesnt whip those

You and your knock off Mongoose. =P