prOject-IrOc

I didn't know they made TPI for a V6...?

I just heard of this, anyone know what kinda hp this made?

rob231

i'm gonna take a stab and say 160 hp. to 180 hp.. maybe 200lb/ft to 220 lb/ft of twist. a dude i knew had one and it felt torquey off the line.

3504mula

My Mom used to have that motor in her 93 Delta 88. It felt very strong for how heavy it was, with extremely smooth acceleration. Beat many of Hondas in that car while borrowing it when my car was down. Best thing was with her driving it would get more than 28 mpg.

bigals87z28

that engine uses tuned port runners just like the tpi on thirdgens... this is non thirdgen related... so this will be going buh bye soon.

IROCZTWENTYGR8

iTrader: (1)

It was stupid to put those words on that intake. That ain't like our TPI even if it is "port" EFI.

FSTFBDY

iTrader: (33)

why does TUNED PORT INJECTION have to be ONLY our 3rdgen TPI.

ALL TUNED PORT INJECTIONS means is Its a just that
TUNED PORT
and
Fuel Injected.

JPrevost

I agree. Although it would be funny if I told you that my Edelbrock RPM carb intake is infact a tuned port injections intake!

Abubaca

iTrader: (3)

TPI refers to 2 things.

First, it refers to the runners being "tuned". L98, LT1, LT4,LT5,LS1,LS6 etc.....are all TPI by definition.

HOWEVER..."TPI" pretty much means L98/LB9. Most vendors will have parts for "TPI-LT1-LS1" engines.

IROCZTWENTYGR8

iTrader: (1)

Exactly.

Kevin G

Gee lets see. It has tuned runners and is fuel injected. That equals "Tuned Port Injection". The 3800 engines are vey reliable actually. SFI is where it is at now.

Black363IROCZ

look at it this way, TPI is batch fired, SEFI is well, exactly what it's said and MPFI is Ford crap

hot86z-28

yeah i've got 2 cars with TPI, my 89 IROC and the parents 9x buick regal. it's pretty sweet, but the converter is so bad, u can brake the tires loose at like 1200 RPM, dont ask me how i know this. but yeah it has more pep than some of the cars i have driven.

LetsRock

Cadillac's 4.6 northstar v8 motor has a tpi setup as well.

Black363IROCZ

an L36 (3800 series II) is a mid 15 second car stock

hot86z-28

no joke? wow the buick is a pimpmobile, i had no idea.

Cruzin Kaz

We have a member on SOGM that has a 97 Buick Regal GS. which is TPI tecnically, it is supercharged from the factory. He runs low 14's right now, and after adding a overdrive pulley for the SC and some intake and exhuast work. She should pull a mid to low 13 next year with ease, traction pending... He is debating on a propane/water injection system to maybe bump her into the 12's

Damon

That's gotta be an early-mid 90s 3800 SFI motor. It made maybe 180-190. Later motors looked similar but had the added moniker of "Series II" on the engine cover and they were bumped up into the 200-220Hp range, depending on application.

My Mom's Buick Mushmobile has that exact engine in it. Makes decent power for a luxo-cruiser. The later "Series II" version of that engine in, say, a FWD Grand Prix (like I used to have briefly) is even more impressive, but nothing that's going to keep a guy with a V8 up at night.

3504mula

I am sure my Buick's "Series II" has kept a few V8 guys up at night......

Black363IROCZ

I've put a few v8 ponies out to pasture by a good amount with my 2000 SS 3.8 and it's bone stock.

rockind78

Just to clarify a few things in short:

1) 3.8 TPI rating from 1991 to 1995 is 170 HP and 220-225lbs/ft, depending on the year.

2) Series II 3800 started in 1996 with a rating of 205 Hp and 230 lbs/ft.

3) The intake design and batch fire versus sequential fire injection are TWO SEPARATE THINGS!!! Example: the 1991 3.8 TPI utilizes batch fire injection while the 1995 3.8 TPI utilizes SFI. The intake design is the SAME, but how the injectors are fired is different.

4) Speaking from personal experience, they are awesome little motors! I owned a 1991 Buick Custom and finally got rid of it when it broke 400,000 miles (the tranny was hurting, but it was driveable). I now own a 1995 Buick Custom, also a great car. 156K on the odometer and running super.

5) If anyone is interested, I am using the Chilton manual for my Buicks to provide the info above.

prOject-IrOc

hey thanx for all the info guys. knowledge is power!!!