BPT forged internals - Page 2

project.r.racing · 10-08-2012, 03:25 PM

Quote:

Originally Posted by Mad Mat

lol ok sorry let me be clear, standard rev range is fine for me.. 8k would be to much and i'd have no touque down in the low rpm range.

any turbo that will blow 20psi will not spool up also at low revs, so you're in the same boat aiming for 20psi.

lots of threads on fordlaser and turbomiata about builds etc.

Mad Mat · 10-08-2012, 03:28 PM

Quote:

Originally Posted by project.r.racing

any turbo that will blow 20psi will not spool up also at low revs, so you're in the same boat aiming for 20psi.

ive done some research and found that a gt28.64 will start boosting at 2200.. i think that is ok dont you??

i just dont want to be in the same ball park as my mate with his civic and a gt30.. boost kicks in at 4500 rpm and just smokes the tires..

project.r.racing · 10-08-2012, 04:04 PM

he may have very low compression.

it all comes down to preference.

some peeps will have higher comp and smaller turbos to have a linear power curve and lower top end power figures.

others might have lower comp pistons with huge turbos to have high top end power figure, but a power curve like your mates.

then there is a bit of A and B mixed in the middle.

TheMAN · 10-08-2012, 05:36 PM

Quote:

Originally Posted by boosted escort

I would go with wiesco pistons and what ever brand of rods you want. The eagle rods are a little heavier than some of the other rods but a good rod for the money. Only reason I say Wiesco is because they have a protective coating that holds up to high heat for a longer period of time than the others. I have a set of Weisco 9:1 pistons in my bp. A stock bp with a good tune with take 300 whp for quite a while but the rods are the weak point. Oil pump gear have also been known to break. I would invest in a set of boundary engnering oil pump gears they are good insurance.

as long as you get the NB2's MX-5 oil pump, you should be fine... the gears are hardened and are thicker

TheMAN · 10-08-2012, 05:38 PM

Quote:

Originally Posted by Mad Mat

ive done some research and found that a gt28.64 will start boosting at 2200.. i think that is ok dont you??

i just dont want to be in the same ball park as my mate with his civic and a gt30.. boost kicks in at 4500 rpm and just smokes the tires..

a GT2854 will spool up sooner and is better matched for an engine as small as the BP... boost kicks in even sooner at around 2000rpm.... you can make up for the slight loss of top end with better cams and higher compression pistons (8.5 instead of 8.2)

familiagtx · 11-08-2012, 05:25 PM

A good rod upgrade if you can find a deal is using rods from a kc-ke / bf b6t.
They are a beefy rod and are a straight fit to a bpt.

All the fl.com boys with big power bpt back in the day all had b6t rods and forged pistons.

Yes they make arias off the shelf part for the bpt

Clean_Cookie · 31-01-2013, 11:22 AM

Just bought arp studs (head and main), 9.5:1 84mm wisecos and eagle rods for $1100 delivered. Let the detonation begin. The other stuff will end up in my daily at this rate then sold off.

Mad Mat · 31-01-2013, 12:23 PM

Nice man

cant wait to see it all in. Will it be done before april??

But really wiseco's... There pritty noise pistons.

mcwilly · 31-01-2013, 12:28 PM

i run wiseco and crower I beams and they arent that noisey guess it depends who builds your engine

Mad Mat · 31-01-2013, 12:36 PM

Quote:

Originally Posted by mcwilly

i run wiseco and crower I beams and they arent that noisey guess it depends who builds your engine

Tru..

Ive seen all different types of cars with then in them and they just sound noisy on idle.. But hey thats just me

TheMAN · 31-01-2013, 01:20 PM

Quote:

Originally Posted by Clean_Cookie

Just bought arp studs (head and main), 9.5:1 84mm wisecos and eagle rods for $1100 delivered. Let the detonation begin. The other stuff will end up in my daily at this rate then sold off.

you better get a J&S safeguard to keep the engine together!
there's no reason to run without one.... it's cheap insurance!

Clean_Cookie · 31-01-2013, 01:36 PM

Yes I most certainly will!. Cheapest place to buy one? Matt, I've done loads of looking at brands. All wisecos I've seen fail were due to stupid setups, incorrect tolerances and not being checked before installation.

TheMAN · 31-01-2013, 01:48 PM

there isn't really place cheaper than the other, the prices are fairly strictly controlled

Ice88 · 31-01-2013, 03:21 PM

What are you using to tune it Ryan?

If you get the same ECU myself and mat are thinking of using it has knock control inbuilt. Ive still gotta research how well it works but will let you know

TheMAN · 31-01-2013, 03:29 PM

nothing is as good as a J&S from my research, trust me

31-01-2013, 11:22 AM	#27
Clean_Cookie obsessed-incomplete-broke Join Date: Oct 2008 Location: Brisbane Car: BA Hardtop/Hatch Posts: 5,441	Just bought arp studs (head and main), 9.5:1 84mm wisecos and eagle rods for $1100 delivered. Let the detonation begin. The other stuff will end up in my daily at this rate then sold off. __________________ Worklog

31-01-2013, 12:23 PM	#28
Mad Mat HONEYWELL REPRESENT Join Date: Aug 2005 Location: Salisbury - Inner City Car: 1997 BA Hardtop - Had a 2003 BJii J48 Sport20, and 2x bg SOHC astina hatches Posts: 5,011 View Photos By: Mad Mat	Nice man cant wait to see it all in. Will it be done before april?? But really wiseco's... There pritty noise pistons. __________________ PROJECT "Catalina" 1994 323 BG Hatch 2005-2007 Crashed into truck 1991 323 BG Hatch 2007-2008/9 SOLD 2003 BJ SP20 J48 Hatch 2008-2011 Regretfully SOLD 1997 BA I4 Sedan 2012-CURRENT 1985 BF 323 Hatch 2014-2015SOLD 1989 MX5 2015-2015

31-01-2013, 12:28 PM	#29
mcwilly Senior Member Join Date: Jul 2004 Location: newcastle NSW Car: 323 astina Posts: 780 View Photos By: mcwilly	i run wiseco and crower I beams and they arent that noisey guess it depends who builds your engine __________________ 340KW @ 24psi....................pb 13.3 @ 118mph (3rd gear issues + wheel spin)

31-01-2013, 01:36 PM	#32
Clean_Cookie obsessed-incomplete-broke Join Date: Oct 2008 Location: Brisbane Car: BA Hardtop/Hatch Posts: 5,441	Yes I most certainly will!. Cheapest place to buy one? Matt, I've done loads of looking at brands. All wisecos I've seen fail were due to stupid setups, incorrect tolerances and not being checked before installation. __________________ Worklog Last edited by Clean_Cookie; 31-01-2013 at 01:59 PM.

31-01-2013, 01:48 PM	#33
TheMAN Senior Member Join Date: Feb 2010 Location: USA Car: . Posts: 2,623	there isn't really place cheaper than the other, the prices are fairly strictly controlled __________________ Protege FAQ, the best 323/Protege/Mazda3 resource enjoyed worldwide for 10 years

10-08-2012, 04:04 PM	#23
project.r.racing Senior Member Join Date: Sep 2004 Location: n/a Car: n/a Posts: 10,929	he may have very low compression. it all comes down to preference. some peeps will have higher comp and smaller turbos to have a linear power curve and lower top end power figures. others might have lower comp pistons with huge turbos to have high top end power figure, but a power curve like your mates. then there is a bit of A and B mixed in the middle.

11-08-2012, 05:25 PM	#26
familiagtx Senior Member Join Date: Feb 2009 Location: sydney Car: Mazda BJ SP20 Turbocharged Posts: 629	A good rod upgrade if you can find a deal is using rods from a kc-ke / bf b6t. They are a beefy rod and are a straight fit to a bpt. All the fl.com boys with big power bpt back in the day all had b6t rods and forged pistons. Yes they make arias off the shelf part for the bpt

31-01-2013, 03:21 PM	#34
Ice88 Senior Member Join Date: Jun 2008 Location: Auchenflower, Brisbane Car: Blue SP20 Posts: 2,782	What are you using to tune it Ryan? If you get the same ECU myself and mat are thinking of using it has knock control inbuilt. Ive still gotta research how well it works but will let you know __________________

31-01-2013, 03:29 PM	#35
TheMAN Senior Member Join Date: Feb 2010 Location: USA Car: . Posts: 2,623	nothing is as good as a J&S from my research, trust me __________________ Protege FAQ, the best 323/Protege/Mazda3 resource enjoyed worldwide for 10 years