Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > 911 / 930 Turbo & Super Charging Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Sep 2005
Posts: 44
Rebuilding 3,0 turbo. WANT MORE POWER...

We are starting to put together a Euro 1977 930 3,0 turbo.
We have a 965 turbo and a K27 already. Car has G50, and no heat exchangers.

ANy suggestions on things we should do to reach 350+ reliable rwhp ?
Old 03-16-2008, 02:05 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Crotchety Old Bastard
 
RarlyL8's Avatar
 
Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,410
Garage
There are lots of ways to get 350WHP. You can do it with mostly stock parts.
Do you want to do it the expensive way or the less expensive way?

Simple/stock/relatively inexpensive:
- Euro Heat Exchangers
- K27-7200 Turbo
- 965 Intercooler (or like)
- 1.0bar boost
- Thorough Tuning of CIS/Ignition

That will get you close. Head work will put you there or beyond. If you can find a cheap set of used headers all the better.
__________________
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-16-2008, 06:01 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
rsrmike's Avatar
 
Join Date: Jan 2008
Location: Birmingham, AL
Posts: 538
If I were you I would look into raising the compression ratio,

and a set of SC or 964 cams.

The extra comp should help the low end grunt, either turbo you mentioned should be about the same

The cams might make rowing through that G-50 a little more exciting

What gears are in the trans? 1.0 bar may give traction trouble

Rarly L8 brought up the best point of all...

How much $$$$
Old 03-16-2008, 10:13 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Adrenaline Junkie
 
Hayabusa's Avatar
 
Join Date: Jan 2003
Location: Mukilteo by the Sea
Posts: 876
Garage
I know!!! My stock US 3.0L couldn't pass a school bus full of kids off the line at present state!
Old 03-16-2008, 01:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Sep 2005
Posts: 44
Quote:
Originally Posted by RarlyL8 View Post
There are lots of ways to get 350WHP. You can do it with mostly stock parts.
Do you want to do it the expensive way or the less expensive way?

Simple/stock/relatively inexpensive:
- Euro Heat Exchangers
- K27-7200 Turbo
- 965 Intercooler (or like)
- 1.0bar boost
- Thorough Tuning of CIS/Ignition

That will get you close. Head work will put you there or beyond. If you can find a cheap set of used headers all the better.
Ive already got the Turbo and IC. and no heat exchangers at all.but plain headers.
What do you mean by tuning the CIS/Ignition ?

Also, to increase compression do I only have to change the pistons ?
I don't want to spend a fortune, but am prepared to upgrade some stuff"while Iam there" !!!
Old 03-16-2008, 02:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
rsrmike's Avatar
 
Join Date: Jan 2008
Location: Birmingham, AL
Posts: 538
Pistons would be the best way to increase compression. I'm not sure how many options you have short of something custom...

3.0 turbo's are a little weirder than one would think, having a aluminum case but a 2.7 crankshaft...

Anyone know an easy trick? longer rods? machine heads?
Old 03-18-2008, 01:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Crotchety Old Bastard
 
RarlyL8's Avatar
 
Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,410
Garage
If you are truly on a budget and just want the HP numbers leave the engine stock. You can get to 350WHP with bolt-ons. Use the G50 to improve off boost driveability.

By tuning the CIS I mean verifying your A/F ratios. There is a lot of power to be lost if they are not optimal. Cam timing will help as well.

I'm simply thinking of the least expensive way for you to hit your number. Not necessarily the most elegant.
__________________
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-18-2008, 02:05 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
930gt-40r's Avatar
 
Join Date: Jan 2007
Location: Boca Raton, FL
Posts: 2,063
I got a guy with a 930 crank that needs to be refinished if you are interested.
I also have an 86' turbo oil pump if that would make a diffrence.
__________________
Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 03-18-2008, 06:45 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
rsrmike's Avatar
 
Join Date: Jan 2008
Location: Birmingham, AL
Posts: 538
3.0 displacement + 6.5?/1 compression + 350WHP = hairy little monster
Should be fun w/G50... Good luck!!
Old 03-19-2008, 12:23 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
A fellow Pelacanite
 
NathanUK's Avatar
 
Join Date: Nov 2006
Location: UK
Posts: 2,002
Garage
I've heard the short stroke 3.0 930 especially with it's lighter weight can easily be underestimated

Keep the short stroke and do bolt ons.
__________________
1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 03-19-2008, 02:34 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Max Sluiter
 
Flieger's Avatar
 
Join Date: Mar 2006
Location: So Cal
Posts: 19,573
Garage
What is the bore/stroke of a 3.3 liter 930 compared to the 3.0?
__________________
911S
1971 chassis, 2.7RS spec MFI engine, suspension mods, lightened

Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
http://www.flickr.com/photos/max_911_fahrer/
Old 03-19-2008, 03:24 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Adrenaline Junkie
 
Hayabusa's Avatar
 
Join Date: Jan 2003
Location: Mukilteo by the Sea
Posts: 876
Garage
Exclamation

1974-77 Turbo Carrera 3.0L - 1140 (kg) 2508.4 (lbs.), 2994cc @ 95mm x 70.4mm (engine capacity), 260bhp@5500, 343@4000 (max torque), 155 (top speed), 5.5 (0-62mph), 3227 (production numbers)

1978-89 911 Turbo 3.3L - 1300 (kg) 2860.5 (lbs.), 3299cc @ 97mm x 74.4mm (engine capacity), 300bhp@5500, 412@4000(max torque), 162 (top speed), 5.0 (0-62mph), 17,425 production numbers)


Last edited by Hayabusa; 03-20-2008 at 10:18 AM..
Old 03-20-2008, 10:16 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
Max Sluiter
 
Flieger's Avatar
 
Join Date: Mar 2006
Location: So Cal
Posts: 19,573
Garage
Thank you! :-)
__________________
911S
1971 chassis, 2.7RS spec MFI engine, suspension mods, lightened

Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
http://www.flickr.com/photos/max_911_fahrer/
Old 03-20-2008, 02:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Me like track days
 
Craig 930 RS's Avatar
 
Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,196
A 3.0? You'll achieve a maximum of about 320 RWHP on a dynojet with a 3.0.
__________________
- Craig 3.4L, SC heads, 964 cams, B&B headers, K27 HF ZC turbo, Ruf IC. WUR & RPM switch, IA fuel head, Zork, G50/50 5 speed. 438 RWHP / 413 RWTQ -
"930 is the wild slut you sleep with who tries to kill you every time you "get it on" - Quote by Gabe
Movie: 930 on the dyno
Old 03-20-2008, 06:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
Registered User
 
lite75's Avatar
 
Join Date: Jan 2007
Location: Bellingham WA
Posts: 825
Garage
2nd RSR mike, add 964 cams and 7.5:1 compression. The 3.0 with a G50 is a great setup!
__________________
75 930, 76 930, 83 SC EFI turbo
Old 03-21-2008, 04:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)
Registered User
 
Join Date: Jan 2007
Posts: 1,077
Actually, what people like to do with the 3.0 is slip in 3.2 pistons/cylinders like the 3.2 carrera. This gives you the same approximate grunt of the 3.3 if you adjust the compression to 7.5 to 1 or so. I believe it is a direct fit pretty much.

And the short stroke crank will scream to redline with a ferocity that these 3.3 just don't have with the longer crank.

The g-50 gearing will absolutely burn your tires up (in a good way).

I have a 3.0 with a lightweight valve train and I can spin my tires with ease at 70 mph when shifting to 3rd gear.

Keeping your short crank makes your engine unique with the 3.2 pistons. A guy named Pete did it around here and he loves it.
Old 03-22-2008, 09:48 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #16 (permalink)
Turbo Hooligan
 
Join Date: Sep 2007
Location: Greensboro NC
Posts: 1,246
Big Bore, Short Stroke, and lots of boost with 7.5:1 comp. mines a 3.2 with mahle p's/c's and its like a light switch on and off boost, sooo much fun, its like a 2 stroke 500cc GP bike with four wheels. 400+ hp is very doable though
__________________
www.d-zug.com
blog.d-zug.com

All these guys do is drive too fast, work on cars, chase ******* and drink.. really no fun at all...
Old 03-22-2008, 01:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #17 (permalink)
A fellow Pelacanite
 
NathanUK's Avatar
 
Join Date: Nov 2006
Location: UK
Posts: 2,002
Garage
And to think that Audi build their engines with a long stroke on purpose for economy!
__________________
1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 03-23-2008, 02:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #18 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 07:43 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.