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Old 05-19-2010   #1
Fred91GTA
"Firehawk" GTA owner
 
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My SLP T-RAM install

In my quest to make my car one of the rarer GTAs, I've installed the SLP Performance package except for the Dyno Don headers and now the SLP T-RAM. My setup before was: ASM siamesed runners, Ported Plenum, Holley 52mm TB, Accel Super Ram intake manifold base. All parts were ported by me.

Old TPI setup:








Install of T-RAM:
Custom Fuel lines:








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Old 05-19-2010   #2
Fred91GTA
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Re: My SLP T-RAM install













All buttoned up:








The car feels like a TPI mated to a Stealth Ram. I still have the same insane low end, but the car just pulls hard all the way to redline at 5500rpm. Gone is the TPI dead zone above 4000rpm. I actually find myself needing to keep an eye on it at part throttle cruisng because at 10% throttle, the car will still accelerate briskly and pull from 60-over 100 with no problems. I'm VERY happy with this setup.

Who says stock heads and cam suck?
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Old 05-20-2010   #3
blatty86
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Re: My SLP T-RAM install

wow never seen that setup. what did u do with ur old intake runners?
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Old 05-20-2010   #4
BigBadGTA
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GTA Year: 1988
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

I want to change my intake so bad. Stock L98 is a quick car, but I am getting tired of the fall on face tendency of the TPI.. You are so lucky to have something that breathes and keeps breathing... BTW blatty your car looks tits as hell in that sig picture. Ive decided I want mine white.
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Old 05-20-2010   #5
budfreak1
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Thats a nice looking intake.
Are the fuel rails actually part of the upper plenum?
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1991 GTA L98 SuperRam- 13.5@98.7 MPH
1987 GTA L98: Flame Red(R.I.P.)
Road Demon:1992 Subaru SVX- Worlds fastest street N/A auto SVX record holder
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Old 05-20-2010   #6
Fred91GTA
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Re: My SLP T-RAM install

blatty, the intake was specific to the 91-92 Firehawks. You don't see them around much because there's a rumor only 200 or so of these intakes were made and the tooling for them was lost in a fire at SLP. I still have my old runners. My entire setup may be bought by one of my car club members.

Bud, yes the fuel rails are cast into the plenum. This thing is 10x easier to work with than TPI. I can do an injector swap in about 20 minutes.

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Old 05-20-2010   #7
Fred91GTA
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Re: My SLP T-RAM install

Quote:
Originally Posted by BigBadGTA View Post
I want to change my intake so bad. Stock L98 is a quick car, but I am getting tired of the fall on face tendency of the TPI.. You are so lucky to have something that breathes and keeps breathing... BTW blatty your car looks tits as hell in that sig picture. Ive decided I want mine white.
A good set of runners make a HUGE difference. My old ASM siamesed runners had all the runners siamesed about halfway down and took care of the TPI stumble, but still emphasized low end torque.
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Old 05-20-2010   #8
budfreak1
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Wow, that is really neat.
I wish the SuperRam were designed a little more user friendly like that.
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1991 GTA L98 SuperRam- 13.5@98.7 MPH
1987 GTA L98: Flame Red(R.I.P.)
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Old 05-20-2010   #9
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Re: My SLP T-RAM install

SLP should remake this thing

so does this bump you up to near firehawk level power?
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Old 05-20-2010   #10
FearThisGTA
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Quote:
Originally Posted by Rodimus_Prime View Post
SLP should remake this thing

so does this bump you up to near firehawk level power?
I agree....
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1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-20-2010   #11
FearThisGTA
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

It would kind be nice to see what kind of #'s the addition of a zz4 cam, and better heads would do for that manifold.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-20-2010   #12
Mongoose
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Thumbs Up Re: My SLP T-RAM install

Kudos to you for having the stones to install this, as most I've seen go for around $2000+ and those tend to stay locked away and never used.
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Old 05-20-2010   #13
Fred91GTA
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Re: My SLP T-RAM install

Quote:
Originally Posted by Rodimus_Prime View Post
SLP should remake this thing

so does this bump you up to near firehawk level power?
I'm probably down about 40-50 horsepower from a Firehawk. Reason being that the Firehawk motors made 350HP and they had corvette aluminum 113 heads and a camshaft with a similar profile to the LT4 HOT cam. I was thinking about getting better heads, but I actually like the way the car is now and I may instead just do a cam swap to a TPIS Super L98 camshaft and keep the stock 083 heads. I want to see how much I can make with bolt-ons and chip tuning.

I did dig up an old sales ad for the T-RAM that guaranteed a minimum 45HP gain over the stock TPI by just slapping on this intake on a completely stock iron headed L98 motor. I killed a V6 2010 Camaro a couple of nights ago while tuning, and they have 304 HP but they also weigh like 600lbs more so


Thing is, I wasn't even really trying. I could hear him really running his motor hard and I was just in cruise and never even went to WOT.

The car's just a whole lot more fun to drive around now. It's not the fastest thing out there by any means but it feels great to have acceleration on tap anytime you need it.
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Last edited by Fred91GTA; 05-20-2010 at 04:39 PM.
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Old 05-20-2010   #14
budfreak1
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Your making me want to hit a dyno or 1/4 mile track so bad it is ridiculous. I'd love to know what kind of power I'm putting down with the SuperRam and all my mods.
What size injectors did you use and what are all of your mods Fred?
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1991 GTA L98 SuperRam- 13.5@98.7 MPH
1987 GTA L98: Flame Red(R.I.P.)
Road Demon:1992 Subaru SVX- Worlds fastest street N/A auto SVX record holder
1997 Silverado 350: Daily ride
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Old 05-20-2010   #15
Fred91GTA
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Re: My SLP T-RAM install

Quote:
Originally Posted by budfreak1 View Post
Your making me want to hit a dyno or 1/4 mile track so bad it is ridiculous. I'd love to know what kind of power I'm putting down with the SuperRam and all my mods.
What size injectors did you use and what are all of your mods Fred?
Bud I'm pretty sure your car and my car will perform similarly if you also have stock heads and cam. The Super Ram is basically the same principle as the T-RAM. Here's my mod list:

SLP T-RAM
SLP Cold Air intake
SLP 2OTL catback exhaust
Holley 52mm Throttle Body
Dyno Don 1 3/4 inch headers, coated
Dual high Flow cats
Comp 981 valve springs
Ford D9B 22# injectors
Accel AFPR set at 50psi
Timing set to 6*
Rebuilt 10-bolt rear with 3.42 gears
Trans Go shift kit
MSD Blaster coil
MSD cap/rotot
MSD 8.5 wires
Stock AC Delco R45TS spark plugs
Custom tuning by me

I'm also going to be putting on a set of GMPP 1.6 roller rockers soon, and am contemplating a cam swap to the TPIS Super L98 camshaft...

220/220 duration
.420/.420 lift with 1.5 rockers (.470/.470 with 1.6 rockers)
112 LSA
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Old 05-20-2010   #16
budfreak1
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Quote:
Originally Posted by Fred91GTA View Post
Bud I'm pretty sure your car and my car will perform similarly if you also have stock heads and cam. The Super Ram is basically the same principle as the T-RAM. Here's my mod list:

SLP T-RAM
SLP Cold Air intake
SLP 2OTL catback exhaust
Holley 52mm Throttle Body
Dyno Don 1 3/4 inch headers, coated
Dual high Flow cats
Comp 981 valve springs
Ford D9B 22# injectors
Accel AFPR set at 50psi
Timing set to 6*
Rebuilt 10-bolt rear with 3.42 gears
Trans Go shift kit
MSD Blaster coil
MSD cap/rotot
MSD 8.5 wires
Stock AC Delco R45TS spark plugs
Custom tuning by me

I'm also going to be putting on a set of GMPP 1.6 roller rockers soon, and am contemplating a cam swap to the TPIS Super L98 camshaft...

220/220 duration
.420/.420 lift with 1.5 rockers (.470/.470 with 1.6 rockers)
112 LSA
Very nice. I think we would perform pretty similar once I have my exhaust done with headman headers and Y pipe and no cats.
Here is my list of engine mods:
Accel/Lingenfelter Super Ram intake
24 lb Ford design III injectors
Accel 58 MM throttle body
PCMforLESS tuned chip
160 degree thermostat
Goodyear hi miler hoses
EGR deleted
TB coolant bypass
NGK G power plugs
Taylor 8MM wires
Hypertech cap and rotor
Hypertech 53K volt coil
K&N air filter
Flowmaster 3" catback
Fuel pressure at 45 and timing is at 8 degrees.

I also have a ZZ4 camshaft to throw in that I will use with 1.6 ratio full roller rockers and Summit Valve springs once I have the money to afford all the parts I want to go with it when I install it.
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1991 GTA L98 SuperRam- 13.5@98.7 MPH
1987 GTA L98: Flame Red(R.I.P.)
Road Demon:1992 Subaru SVX- Worlds fastest street N/A auto SVX record holder
1997 Silverado 350: Daily ride

Last edited by budfreak1; 05-20-2010 at 05:01 PM.
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Old 05-20-2010   #17
Fred91GTA
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Re: My SLP T-RAM install

I just checked out your mods on cardomain. I highly suggest the Dyno Don headers. The Dyno Dons are custom built by a TGO member by the name of Dyno Don. I believe the Hedmans are only 1 5/8 inch primaries and the Dyno Dons are huge 1 3/4 inch primaries and went in with ZERO fit problems. You'll definitely notice a difference with the headers. I had the high flow TPI setup on my car with the stock exhaust manifolds and no matter what I did tune-wise, the car always felt choked up. I put in the Dyno Dons and it just really opened up the car. Felt like the motor grew another 50 cubic inches... haha
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Old 05-20-2010   #18
budfreak1
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Quote:
Originally Posted by Fred91GTA View Post
I just checked out your mods on cardomain. I highly suggest the Dyno Don headers. The Dyno Dons are custom built by a TGO member by the name of Dyno Don. I believe the Hedmans are only 1 5/8 inch primaries and the Dyno Dons are huge 1 3/4 inch primaries and went in with ZERO fit problems. You'll definitely notice a difference with the headers. I had the high flow TPI setup on my car with the stock exhaust manifolds and no matter what I did tune-wise, the car always felt choked up. I put in the Dyno Dons and it just really opened up the car. Felt like the motor grew another 50 cubic inches... haha
I can believe it. I will look into them when the time comes to buy. Thanks for the suggestion.
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My Cardomain
1991 GTA L98 SuperRam- 13.5@98.7 MPH
1987 GTA L98: Flame Red(R.I.P.)
Road Demon:1992 Subaru SVX- Worlds fastest street N/A auto SVX record holder
1997 Silverado 350: Daily ride
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Old 05-20-2010   #19
FearThisGTA
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: My SLP T-RAM install

Fred-

A couple of things I see that also add to your performance are the 3.42 gears, compared to the 3.23 gears. Then the headers; arent those headers long tubes? If so, I bet that REALLY wakes your car up. Also, have you thought about raising the timing and fuel pressure? I bet with the timing bumped up to at least 12* and the fuel pressure to 50lbs. WHEW!! HOLD ON!! AND GET SOME NEW TIERS,LOL!! Just curious though, if you thought about doing that....I would be curious to know how it performed.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 05-20-2010   #20
Fred91GTA
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Re: My SLP T-RAM install

Hey Cliff. The fuel pressure is already at 50lbs. For some reason, I can't adjust the AFPR any lower than that so I'm tuning around it right now. As far as the timing, I'm redoing the timing curve from the stock AUJP calibration. I've tried advancing the timing to 10* base, but the car was running hot so I'm just doing a 6* initial timing per the computer's specs and playing around with the spark advance table to get me the best A/F ratio without running hot. I still haven't finished tuning the fuel curve. My datalogs still show me to be running slightly LEAN in the upper RPMs even with the increased fuel pressure. I guess this thing flows monster air. I'm close to maxxing out the 22# injectors.

Oh the headers are still shorties. Dyno Don took the SLP headers and basically fixed all the problems with them and added his own design cues. There's an article somewhere on TGO that compared to Hooker Super Comps, the Dyno Dons only gave up 6HP in the upper RPMs. Not bad for a shorty header made for our cars huh? And without any of the headaches of longtubes. I've put in a set of Hooker Super Comp longtubes in a 3rdgen F-Body, not mine. I'm NEVER doing that again.
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1991 Trans Am GTA... Hopefully again

Last edited by Fred91GTA; 05-20-2010 at 09:31 PM.
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