are there any turbo kits for the L27? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 05-06-2005, 04:52 PM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jan 2004
Posts: 117
Thanks: 0
Thanked 0 Times in 0 Posts
malibuolds is on a distinguished road
Default are there any turbo kits for the L27?

i did a little searching but it seems they are all for the L36. anything out there for the L27 guys?

TIA
malibuolds is offline   Reply With Quote
Old 05-06-2005, 05:11 PM   #2
Senior Member
Posts like a Turbo
 
Join Date: Dec 2004
Location: Zelienople, Pennsylvania
Posts: 237
Thanks: 0
Thanked 0 Times in 0 Posts
digitaloutsider is on a distinguished road
Default

I don't believe there is. But hey, there'* always the Series I L67 which is a pretty direct swap (and it'* what I'm doing, myself!)
digitaloutsider is offline   Reply With Quote
Old 05-06-2005, 05:16 PM   #3
Sol
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

It would have to be a custom job. There'* really nothing on the market for the L27'*. You'd be better off swapping an */C'ed 3800 in to your car.
Sol is offline   Reply With Quote
Old 05-06-2005, 05:45 PM   #4
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jan 2004
Posts: 117
Thanks: 0
Thanked 0 Times in 0 Posts
malibuolds is on a distinguished road
Default

yeah you're probably right. on a side note i do have my eye on a certain '92 SSEi, but i need to get rid of my GTS first
malibuolds is offline   Reply With Quote
Old 05-06-2005, 08:24 PM   #5
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Turbo would definetly have more power. Basically you'll want to pickup L67 injectors if you're running decent boost levels, a boost controller, new fuel maps, blow off valve, turbo timer are good ideas...
BonneMeMN is offline   Reply With Quote
Old 05-06-2005, 11:27 PM   #6
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jan 2004
Posts: 117
Thanks: 0
Thanked 0 Times in 0 Posts
malibuolds is on a distinguished road
Default

Quote:
Originally Posted by BonneMeMN
Turbo would definetly have more power. Basically you'll want to pickup L67 injectors if you're running decent boost levels, a boost controller, new fuel maps, blow off valve, turbo timer are good ideas...
new fuel maps....what would be the best way of doing that? my other 2 cars are speed density with 2-bar MAP sensors....i am totally new to a MAF controlled engine.

btw my other 2 cars use $25 grainger valve MBCs and i have great luck with them (i also use 1g DSM BOVs on both of them). i think i could handle getting a custom crossover pipe made (probably with a T3 flange and use a Garrett .63 A/R turbine T3/T04E compressor...not sure what specs i'd use for the compressor side) but i'm not sure what i'd do about the rear exhaust manifold dump (block it off? maybe use a rear exaust manifold from a 3800 F-body?). making a custom downpipe shouldn't be too hard either, ecspecially with the piping, SS flex bellows and V-band clamps you can get from ATP Turbo. i figure the intercooler plumbing shouldn't be too hard either....it just gets kinda expensive for all of the mandrel bent piping, silicone couples, reducers, and T-bolt clamps involved....not to mention the cost of an FMIC itself.

on the bright side it looks like there is a ton of room to work with on this car for a FMIC and turbo, dowpipe etc...

the main thing that scares me off is what to do about the computer; being OBD2 & MAF controlled and all....

too bad the L27 isn't speed density with OBD-1 ECM & MEMCAL, then i could just get a 2-bar MAP. but i'm sure programing an EEPROM for it would be REAL fun so yeah...probably best to stay with MAF and PCM.

wow, i have alot to learn
malibuolds is offline   Reply With Quote
Old 05-07-2005, 12:34 AM   #7
Senior Member
Certified GM nut
 
Join Date: Feb 2003
Location: Georgia
Posts: 2,095
Thanks: 0
Thanked 0 Times in 0 Posts
DrJay is on a distinguished road
Default

I talked to a guy who turbocharged his '90 3800 and he found that the MAF was maxed out relatively early, 170gr/sec. He also found an interesting solution to the exhaust by running it around the front of the engine. You can see the pics and a writeup here:

http://www.seriesoneperformance.com/rides2.html

Neat stuff.
DrJay is offline   Reply With Quote
Old 05-07-2005, 05:12 AM   #8
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

Quote:
Originally Posted by malibuolds
the main thing that scares me off is what to do about the computer; being OBD2 & MAF controlled and all....

too bad the L27 isn't speed density with OBD-1 ECM & MEMCAL, then i could just get a 2-bar MAP. but i'm sure programing an EEPROM for it would be REAL fun so yeah...probably best to stay with MAF and PCM.

wow, i have alot to learn
Your still OBD1 with an OBD2 connector and codes. 94-95 are the transition years.
www.gmtuners.com does memcal reprogramming. I'm using them right now and have nothing but good things to say about them. 40 bucks plus shipping for a reprogrammed memcal. But you will need to supply dyno/scantool data.
And if you want to mess with your air/fuel often theres a mini afc calibrator that manipulates the MAF freq. resulting in new fuel tables. www.zzperformance.com Iit will work for your maf.
95naSTA is offline   Reply With Quote
Old 05-07-2005, 01:57 PM   #9
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jan 2004
Posts: 117
Thanks: 0
Thanked 0 Times in 0 Posts
malibuolds is on a distinguished road
Default

Quote:
Originally Posted by DrJay
I talked to a guy who turbocharged his '90 3800 and he found that the MAF was maxed out relatively early, 170gr/sec. He also found an interesting solution to the exhaust by running it around the front of the engine. You can see the pics and a writeup here:

http://www.seriesoneperformance.com/rides2.html

Neat stuff.
whoa! that is one loooonnngg *** crossover pipe! very interesting!
malibuolds is offline   Reply With Quote
Old 05-07-2005, 01:59 PM   #10
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jan 2004
Posts: 117
Thanks: 0
Thanked 0 Times in 0 Posts
malibuolds is on a distinguished road
Default

Quote:
Originally Posted by 95naSTA
Your still OBD1 with an OBD2 connector and codes. 94-95 are the transition years.
www.gmtuners.com does memcal reprogramming. I'm using them right now and have nothing but good things to say about them. 40 bucks plus shipping for a reprogrammed memcal. But you will need to supply dyno/scantool data.
And if you want to mess with your air/fuel often theres a mini afc calibrator that manipulates the MAF freq. resulting in new fuel tables. www.zzperformance.com Iit will work for your maf.
thanks for the info
malibuolds is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
L27 series 1 modding/ turbo? bs009 Performance, Brainstorming & Tuning 24 03-18-2008 06:02 PM
l27 Turbo thought gojo83 Performance, Brainstorming & Tuning 21 10-13-2007 04:02 AM
Any brake upgrades kits for 87-91 H-bodys? PLANT PROTECTION Performance, Brainstorming & Tuning 1 01-28-2005 07:53 PM
Is there any performance parts for the L27? Painkiller 1992-1999 8 01-14-2005 05:28 PM
Are there any body Kits 4 the 93 Bonneville magiman_ 1992-1999 4 09-29-2003 09:53 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:19 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.