BC 2.7L with 30r .82 - Page 3

drksdesti · 06-19-2007, 04:43 PM

I was looking at this exact setup but with a GT35r. Let me know what labor is on the engine work not the heads just the internal rebuild.

***Sinister redlines*** · 06-20-2007, 02:28 PM

Well started to take measurements and do the math, with the parts I have purchased I will end up with a 9.18 to 1 compression ratio and the best news is TDC is .002" lower from the deck than stock so (I still need to do the math on the cams BUT) I will be able to run AVCS without the scare of kissing a piston

.

***chaos311clarity*** · 07-18-2007, 04:24 AM

bump for updates!

***Sinister redlines*** · 09-10-2007, 06:00 PM

sorry for the late results but engines been mocked up a few times, destroyed a set of avcs pulleys to make a degree tooling to see where the valves are in relation to piston clearence. I have also ditched the 30r for a 35r .82 Ya I know ate my words LOL.

wrxcelration · 09-10-2007, 06:34 PM

^ I was just about to say, I would have gone w a 35r w that setup. Good choice keep us posted

TheLimitedProject · 09-10-2007, 07:38 PM

I'm on the twinscroll bandwagon right now, so maybe look at a APS TSR70 (with a proper compressor housing) or even a Full-Race GT40R. Hello spool and hello power.

Why not? You have the safety of your block to back all that power up.

twigg107 · 09-10-2007, 08:06 PM

Quote:

Originally Posted by TheLimitedProject

I'm on the twinscroll bandwagon right now, so maybe look at a APS TSR70 (with a proper compressor housing) or even a Full-Race GT40R. Hello spool and hello power.

Why not? You have the safety of your block to back all that power up.

too late... hes already has the 35r kit.... Iam trying to get him to throw a 42r on it just for a few dyno runs. lol

cpunlamd · 09-11-2007, 04:40 AM

The 35R is the perfect turbo for this set up as a DD. I was thinking that the 30R was too small for even the 2.5 block.

(0.82 > 0.63)

***Sinister redlines*** · 09-11-2007, 04:39 PM

So new poll?

whats a 2.71L, ported heads, 1mm bigger valved, cammed balanced engine with a gt35r .82 going to make?

jutes85 · 09-11-2007, 06:13 PM

zero traction until 60.

amg destroyer · 09-11-2007, 06:31 PM

Subscribed because I just can't stop imagining the spool you are going to have

TAPOUT · 09-11-2007, 06:35 PM

Quote:

Originally Posted by Sinister redlines

So new poll?

whats a 2.71L, ported heads, 1mm bigger valved, cammed balanced engine with a gt35r .82 going to make?

My guess...
518 hp on pump
635 on C16

Sti 500 · 09-16-2007, 09:39 PM

I'm interested in this kit as well,got a few questions for you. After you installed the darton sleeves was there any extra machining required to acheive enough clearences (eg crank to sleeves or block). Can you get a head gasket to suit the 102 mm bore.
Also what spool are you hoping for on the 35R I'm running a twin scroll GT30R with a 1.06 ex housing at the moment but looking at upgrading to a twin scroll GT35R . I'm still trying to decide on the compression ratio for my build as I am running 2L Sti heads.

thanks

rjacobs · 09-17-2007, 07:04 AM

The hotside(.82 did you say) is gonna limit you on that setup. You are gonna be pushing to much air out of the motor for it to make max power. It will spool crazy fast, but youll be leaving power on the table. There is a guy down here in Austin that has a cosworth block and heads and the APS TSR70 kit and with the stock hotside(82 I think) they left alot of power on the table because the motor was pushing crazy amounts of air. They switched to a 1.02 or 1.06 hotside(not sure) and he made about 60 more hp. Here is a link to that post http://forums.nasioc.com/forums/show....php?t=1238228
When they switched the hotside it made 540 whp. There is another tread on that.

***Sinister redlines*** · 09-17-2007, 07:27 PM

Quote:

Originally Posted by rjacobs

The hotside(.82 did you say) is gonna limit you on that setup. You are gonna be pushing to much air out of the motor for it to make max power. It will spool crazy fast, but youll be leaving power on the table. There is a guy down here in Austin that has a cosworth block and heads and the APS TSR70 kit and with the stock hotside(82 I think) they left alot of power on the table because the motor was pushing crazy amounts of air. They switched to a 1.02 or 1.06 hotside(not sure) and he made about 60 more hp. Here is a link to that post http://forums.nasioc.com/forums/show....php?t=1238228
When they switched the hotside it made 540 whp. There is another tread on that.

Ya I am thinking the same but I want a good dd that is strong but not unmanagable.

06-19-2007, 04:43 PM	#31
drksdesti Amateur STI Driver Car: OBP 2006 Fav Mod: Hindsight Location: Texas Posts: 40 Join Date: Apr 2007 Trader Rating: (0)	Re: BC 2.7L with 30r .82 I was looking at this exact setup but with a GT35r. Let me know what labor is on the engine work not the heads just the internal rebuild. This ad is not endorsed by this member. Please register or login to hide this ad.

06-20-2007, 02:28 PM	#32
*Sinister redlines* Platinum Member Car: x2 05 WRX STi's Location: WA Posts: 511 Join Date: Jun 2006 Trader Rating: (9)	Re: BC 2.7L with 30r .82 Well started to take measurements and do the math, with the parts I have purchased I will end up with a 9.18 to 1 compression ratio and the best news is TDC is .002" lower from the deck than stock so (I still need to do the math on the cams BUT) I will be able to run AVCS without the scare of kissing a piston .

07-18-2007, 04:24 AM	#33
*chaos311clarity* oMgWTFpewpew Car: 05 CGM STi Fav Mod: grip. Location: Southeastern PA Posts: 5,351 Join Date: Aug 2006 Trader Rating: (7)	Re: BC 2.7L with 30r .82 bump for updates!

09-10-2007, 06:00 PM	#34
*Sinister redlines* Platinum Member Car: x2 05 WRX STi's Location: WA Posts: 511 Join Date: Jun 2006 Trader Rating: (9)	Re: BC 2.7L with 30r .82 sorry for the late results but engines been mocked up a few times, destroyed a set of avcs pulleys to make a degree tooling to see where the valves are in relation to piston clearence. I have also ditched the 30r for a 35r .82 Ya I know ate my words LOL.

09-10-2007, 06:34 PM	#35
wrxcelration Professional STI Racer Car: 05 STi Location: Allentown PA Posts: 838 Join Date: Jul 2007 Trader Rating: (4)	Re: BC 2.7L with 30r .82 ^ I was just about to say, I would have gone w a 35r w that setup. Good choice keep us posted

09-10-2007, 07:38 PM	#36
TheLimitedProject Spec C Club Car: 07 STI LTD/08 STI Fav Mod: APS/Crawford/Cosworth/Aquamist Location: E-town, AB Posts: 2,253 Join Date: Apr 2005 Trader Rating: (5)	Re: BC 2.7L with 30r .82 I'm on the twinscroll bandwagon right now, so maybe look at a APS TSR70 (with a proper compressor housing) or even a Full-Race GT40R. Hello spool and hello power. Why not? You have the safety of your block to back all that power up.

09-11-2007, 04:40 AM	#38
cpunlamd Professional STI Racer Car: 07 WRX STI Fav Mod: Matching Dead Pedal Location: Wayne, NJ Posts: 663 Join Date: Jun 2007 Trader Rating: (0)	Re: BC 2.7L with 30r .82 The 35R is the perfect turbo for this set up as a DD. I was thinking that the 30R was too small for even the 2.5 block. (0.82 > 0.63)

09-11-2007, 04:39 PM	#39
*Sinister redlines* Platinum Member Car: x2 05 WRX STi's Location: WA Posts: 511 Join Date: Jun 2006 Trader Rating: (9)	Re: BC 2.7L with 30r .82 So new poll? whats a 2.71L, ported heads, 1mm bigger valved, cammed balanced engine with a gt35r .82 going to make?

09-11-2007, 06:13 PM	#40
jutes85 Silver Member Car: 2006 OBP STi Fav Mod: AP Stage 2 Location: Alberta Posts: 1,338 Join Date: Sep 2006 Trader Rating: (7)	Re: BC 2.7L with 30r .82 zero traction until 60.

09-11-2007, 06:31 PM	#41
amg destroyer GUNNIN' IT Car: '05 STi Fav Mod: Sparco seat Location: OC Posts: 3,794 Join Date: Sep 2006 Trader Rating: (3)	Re: BC 2.7L with 30r .82 Subscribed because I just can't stop imagining the spool you are going to have

09-16-2007, 09:39 PM	#43
Sti 500 Lurker Car: 05 wrx sti Fav Mod: 2.7 stroker Location: Brisbane , Australia Posts: 1 Join Date: Sep 2007 Trader Rating: (0)	Re: BC 2.7L with 30r .82 I'm interested in this kit as well,got a few questions for you. After you installed the darton sleeves was there any extra machining required to acheive enough clearences (eg crank to sleeves or block). Can you get a head gasket to suit the 102 mm bore. Also what spool are you hoping for on the 35R I'm running a twin scroll GT30R with a 1.06 ex housing at the moment but looking at upgrading to a twin scroll GT35R . I'm still trying to decide on the compression ratio for my build as I am running 2L Sti heads. thanks

09-17-2007, 07:04 AM	#44
rjacobs Professional STI Driver Car: 06 White/Gold Location: Austin, TX Posts: 415 Join Date: Sep 2006 Trader Rating: (0)	Re: BC 2.7L with 30r .82 The hotside(.82 did you say) is gonna limit you on that setup. You are gonna be pushing to much air out of the motor for it to make max power. It will spool crazy fast, but youll be leaving power on the table. There is a guy down here in Austin that has a cosworth block and heads and the APS TSR70 kit and with the stock hotside(82 I think) they left alot of power on the table because the motor was pushing crazy amounts of air. They switched to a 1.02 or 1.06 hotside(not sure) and he made about 60 more hp. Here is a link to that post http://forums.nasioc.com/forums/show....php?t=1238228 When they switched the hotside it made 540 whp. There is another tread on that.