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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Help wake up my GTA!
Hey everyone!, Its been awhile since I have posted, but I am looking for some opinions. A few years ago converted my GTA from a 305 to 350 (from a 90 suburban 2500) installed a mild cam (2032 i believe) 113 corvette heads ,1.6 magnum roller rockers, 24lb injectors, AFPR, and a custome tune from a now "retired" board member . Headers and 3" flowmaster cat back. Installed a trans I bought from here with a 2400 stall. Well it works pretty good but just doesn't seem to have the power I wa looking for, best I managed was a 14.02 but it usually around 14.2-14.5. My goal is Mid 13's??? So I figured my intake is my bottle neck so I picked up a plenum and runners ( I will post pics shortly) but I am not sure what to do with the Base. Do I keep the stock one and have it ported (guy on ebay doing it for decent price) is there anyone local? or do I just buy a edelbrock hi flow? Not sure what to do or if I am going in the right direction to get to my goal. I was also planning on changing the flowmastr muffler out for something that flows better and the cat. Also was thinking about bumping up to 3.45 gear? Anyway your input woulb be appreciated
_________________1988 GTA 1989 20th Anniversary TTA
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Thu Dec 29, 2011 12:46 pm |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
SLP runners, ported and siamesed. What to do for gaskets? Plenum:
_________________1988 GTA 1989 20th Anniversary TTA
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Thu Dec 29, 2011 12:49 pm |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Help wake up my GTA!
NAWZ The 3:45 is a perfect match for a LTR tpi Stall will do wonders for ya over the stock stall
_________________http://forums.kwmuscle.com/viewtopic.php?t=4238&start=0 Laughing at dumb dumbs since Oct 03/11 Alex IROC Z-28 wrote: Ohhh lord....here we go..... Hawk one time kicked Chuck Noris ass so bad that Chuck Noris filed for Workers Comp......
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Thu Dec 29, 2011 1:17 pm |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
Hey Hawk! No NOS! You mentioned in the past I should upgrade to 3:45, got any kicking around? its got a 2400 stall I believe, how much bigger you think? Hawk wrote: NAWZ The 3:45 is a perfect match for a LTR tpi Stall will do wonders for ya over the stock stall
_________________1988 GTA 1989 20th Anniversary TTA
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Thu Dec 29, 2011 1:38 pm |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Help wake up my GTA!
if stall is a 2400, leave it, sorry m8 I got no 3:45's around, Daz might That crane 2032 cam, sux, just so you know Tim dyno'd 2rwhp over his stock dyno with that cam, yes a mighty 2rwhp Trigger and Merc didnt do so good with it either. Intake is a big choke, even ported, thats why the FIRST is alot better LTR set-up Is your Plenum ported at all? Grab a Holey 52mm TB, you dont need a 58 I would grab the Edelbrock intake or the TPIS Big Mouth and blend everything together instead of Porting out the stocker, but thats only because I am lazy
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Thu Dec 29, 2011 3:06 pm |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
I wil have to go and confirm the cam to be sure, but it may explain somethings. Thanks for the input on the throttle body, wasn't sure if upgrading was necessary. Plenum and Runners had been ported by http://www.corvetteplenum.com/Home.htmthey look great! I think TPIS stop making the base? no longer on website. The First system is really nice, did you ever get yours installed?
_________________1988 GTA 1989 20th Anniversary TTA
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Thu Dec 29, 2011 3:28 pm |
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mikesz1984
Forum Moderator
Joined: Fri Mar 18, 2005 6:54 am Posts: 1840 Location: ingersoll
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Re: Help wake up my GTA!
i know somebody who got the first installed lol
_________________ 355, trickflow heads, comp cams roller cam, compcams rollertip rockers. First fuel injection, t56, hooker headers, dynomax exhaust.
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Thu Dec 29, 2011 9:19 pm |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
I remeber you and Hawk buying the Fisrt intake, was wondering if I would run into any of you guys at Sparta with the new set up! Do you think I am going in the right direction? I am trying to leep a "stock look" under the hood but want to get into the low 13's mikesz1984 wrote: i know somebody who got the first installed lol
_________________1988 GTA 1989 20th Anniversary TTA
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Thu Dec 29, 2011 9:56 pm |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Help wake up my GTA!
I havnt put mine on yet, not 100% sure I am going down that trail, I have been considering going single plain with a Turbo instead
I have been debating sellnig my Mini Ram, HSR, FIRST and my AS&M Runners/Accel Intake set-ups, not quite at that stage yet, lol
_________________http://forums.kwmuscle.com/viewtopic.php?t=4238&start=0 Laughing at dumb dumbs since Oct 03/11 Alex IROC Z-28 wrote: Ohhh lord....here we go..... Hawk one time kicked Chuck Noris ass so bad that Chuck Noris filed for Workers Comp......
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Fri Dec 30, 2011 9:24 am |
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Vetty
Operations Team
Joined: Tue May 03, 2005 5:27 pm Posts: 3072 Location: Oshawa
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Re: Help wake up my GTA!
Intake sounds look a good idea to try and widen the powerband if thats what this intake will do. Im sure with some suspension goodies, 3.45-3.73 gear, 3000+ stall, and a good drag radial you should be able to pull that off.
_________________ 1969 Firebird Sprint OHC 6 - 250ci/M5 1995 Trans Am - Blue Green Chameleon - 350ci/A4 1994 Fire-Am - Polo Green - 355ci/M6 380rwhp: SOLD
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Fri Dec 30, 2011 9:43 am |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
You know I was kinda waiting to see if you had your set up for sale<<<<but it never happened and then I cam across the Plenum and runners. Would be interested in the accel base . Hawk wrote: I havnt put mine on yet, not 100% sure I am going down that trail, I have been considering going single plain with a Turbo instead
I have been debating sellnig my Mini Ram, HSR, FIRST and my AS&M Runners/Accel Intake set-ups, not quite at that stage yet, lol
_________________1988 GTA 1989 20th Anniversary TTA
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Fri Dec 30, 2011 10:16 am |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
The intake is a must the stocker is suck a choke, just wasn't sure if I should go with porting current one or a edelbrock unit, or possibly a TPIS Big mouth,,,,,Got to keep my eye out for gears for the 9 bolt, thinking 3:45 at most, don't think the TPI would work well with anything more radical. Vetty wrote: Intake sounds look a good idea to try and widen the powerband if thats what this intake will do. Im sure with some suspension goodies, 3.45-3.73 gear, 3000+ stall, and a good drag radial you should be able to pull that off.
_________________1988 GTA 1989 20th Anniversary TTA
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Fri Dec 30, 2011 10:24 am |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
Checked the cam card today, I was wrong, its a Comp XR264HR12. little more aggressive than the 2032. With 1.6 RR it has .520 intake .528 exhaust. Hawk wrote: That crane 2032 cam, sux, just so you know Tim dyno'd 2rwhp over his stock dyno with that cam, yes a mighty 2rwhp Trigger and Merc didnt do so good with it either.
_________________1988 GTA 1989 20th Anniversary TTA
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Fri Dec 30, 2011 9:40 pm |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Help wake up my GTA!
Okay, thats a good cam, and you are correct, u dont want to go too high on the stall or the gearing with a LTR set-up Personaly 3:45's would be a good decent match, but I cant deny 3:70's would give your seat of the pants a fib that makes it fun on the street, lol Your pics were not showing up for me before for some reason, they look nice In yor shoes I would even do abit of blending work on the Edelbrock intake if you chose that way, personaly I am too lazy to port out the stocker, but peeps have had good results donig it.
_________________http://forums.kwmuscle.com/viewtopic.php?t=4238&start=0 Laughing at dumb dumbs since Oct 03/11 Alex IROC Z-28 wrote: Ohhh lord....here we go..... Hawk one time kicked Chuck Noris ass so bad that Chuck Noris filed for Workers Comp......
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Fri Dec 30, 2011 10:16 pm |
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88GTA
Forum User
Joined: Thu Sep 03, 2009 12:21 pm Posts: 134 Location: London
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Re: Help wake up my GTA!
By "blending" do you mean cleaning up the ruff cast on the inside of each port? I think TPIS does this with there intake, but edelbrocl doesn't, eventhough they are both made by edelbrock. Seems that everywhere I read about similar set ups as mine, they seem to be getting better results.
_________________1988 GTA 1989 20th Anniversary TTA
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Fri Dec 30, 2011 10:47 pm |
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