in the camero database they say the trans am has 190 hp i got a 86 ta with ws6 and the factory specs are 210 hp 270 tourque. and my cam redlines at 5000 rpm so that makes it a peanut cam

 

If that is the original motor, then yes, it is the peanut cam. Don't always rely on the tach for that info.

------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/

 

Your 86 Trans Am with a 305 TPI engine should be 190 HP, same as the Camaro.

------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

go to www.cars.com and look for the 1986 305 tpi trans am and it will tell you that it has 210 hp stock from the factory

 

the 1986 TPI 305s have 190hp if linked to an auto tranny. PERIOD. There are no L98 cammed 86 TPI cars.
FYI, the tach is not an indicator of camshaft profile, but since yours is an 86 it has the peanut cam, no doubt about it.

------------------
91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

Built on Wednesday

 

all you guys are wrong. 1986 305 tpi ws6 package rated at 210 hp and 270 tourque

 

If it says that,they are wrong.All LB9 F-bodys had the peanut cam,and were rated at 190hp.

------------------
1990 Trans Am GTA,Black/Black Leather,350,auto 3.23,Dual Cats,SLP Package,SLP Torque Converter/Shift Kit,Fastchip,GSC's,
G-tech 0-60 5.1 1/4mile 13.6@104
Previous Thirdgen
1986 Camaro IROC-Z

 

NUN, if you don't believe what these people say, then don't ask. The '85 was rated at 210-215hp because it had the larger cam, but due to emissions the cam had to be ground smaller until '89-'90 or so. Your 86 IS RATED AT 190hp according to the Firebird Redbook, and the 1986 Pontiac Firebird sales brochure.... good enough for you?

Also, I'm sure MrJ will correct me if I'm wrong, but there were no TPI motors mated to a T-5 until '87

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Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/

[This message has been edited by Kevin Irving (edited March 10, 2001).]

 

I have 2 sales brochures I picked up in 1986 and documentation from Pontiac that I got back in 93 when I bought my 86 that rates the 305 TPI HP at 205. I am not even going to waste my time scanning it to prove a point will all the self proclaimed geniuses around here so you can say whatever you want about it but reality is everything that I have and have seen says its 205. I havent yet seen a brochure from 86 that shows the hp rating at 190 in the Pontiac, nor any other documentation from GM themselves that says it. Whether or not it was an error on GM's part or if its even accurate is up for grabs. I dont have a 5000rpm redline on my car either, contrary to popular belief, but the cam I pulled out of it was in fact a peanut cam. Was it really 205hp? I really doubt it. 190? It would be impressive to me if it was even that much. I dont even buy the 190, supposedly the air intake on the TA's sapped 5hp from the power rating, so even if the Iroc was actually 190, then realistically the TA should have been 185. IMO factory HP ratings are more guidelines and approximations, not cast in stone by any means whatsoever. Sometimes I wonder if they were pulled out of a hat or calculated by some program.

Kevin, you are correct about the transmissions. There werent any 5speed TPI's in the F-body until 1987, and that was with the 305 only. So happens that was the first year to get the 350 TPI (aside from a select few) and you were stuck with the auto.

Also, not all LB9's had the peanut. I have one that came out of a 91 that isnt, and no 85 LB9 has the peanut either, it has the HO cam.

[This message has been edited by madmax (edited March 10, 2001).]

 

To add to this, Pontiac rated the B2L engine in the Firebirds at 210hp in 87.Do you think they would have rated the 350 as the exact same horsepower as the 305 the year before?Even that,I dont know how an engine with 45 more cubes,better heads,the same cam,has the exact same horsepower rating as the 85 LB9's.The runners are a restriction on the 350,but that doesnt make sense,and I bet on a dyno the 87 350's have atleast 15 more rearwheel horsepower then the 85 LB9's.Insurance purposes were probably the real reason.Then again,they rated the 88's at 225hp and I seriously doubt just the ducting added 15 more peak horsepower.I also really dont know why they started to take the intake ducting in consideration for rating beginning in 87,and not in the 85-86 LB9's,and also again rated the same in 90-92.I have been trying to find out why my car is rated at only 235hp and not 240 as it should be(I posted this on a thread about a week ago)With no logical answer either.

------------------
1990 Trans Am GTA,Black/Black Leather,350,auto 3.23,Dual Cats,SLP Package,SLP Torque Converter/Shift Kit,Fastchip,GSC's,
G-tech 0-60 5.1 1/4mile 13.6@104
Previous Thirdgen
1986 Camaro IROC-Z

 

You are on target. Numbers out of a hat.

Seriously, in 87 the 305 is rated at 205 (so says what I have) and the 350 is rated at 210? 210 out of a 350? LOL! Cmon guys... 45 cubes, a better cam, and better heads and it makes 5 more HP? Please. Thats why I tend to take the ratings with a grain of salt. I also stand behind what they say it was if I am using it for documentation, because thats what they said it was. Reality, as usual, is something different.

 

I know what you are saying Max, and I agree... sounds like someone at GM fudged the #'s for whatever reason, whether it be insurance, emissions, whatever... but getting back to the guy's original question, if he REALLY wanted to know what his engine is rated at, the best thing to do is of course take it to the dyno. But until then, the worst thing anyone here can do is ask a question and argue with people because you supposedly had the answer the whole time.

By the way, there is even an article in the tech section I believe which states that his '86 TPI V8 is rated at 190hp from the factory... here's the link: https://www.thirdgen.org/newdesign/tech/techdb.shtml

------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/

 

The #'s in the Tech Section are only for Camaro's.

------------------
Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

You need to look at it again....
Yr Model Trans Engine
code/type CR Displ. HP Torque Induc-
tion Manual
std. Manual
opt.
(G92) Auto
std. Auto
opt.
(G92)
86 Coupe
Berlinetta M5,A4 LB8 V6 8.9:1 2.8 (173) 135@5100 160@3900 MFI 3.42 ---- 3.42 ----
86 Coupe
Firebird M5,A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4bbl 2.73 ---- 2.73 ----
86 Berlinetta/
Firebird S/E A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4bbl ---- ---- 2.73 ----
86 Z28/
Trans Am M5,A4 LG4 V8 9.5:1 5.0 (305) 165@4400 250@2000 4bbl 3.23 3.73 2.73 ----
86 Z28/
Trans Am M5 *L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4bbl HO 3.23 3.73 ---- ----
86 Z28/
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI ---- ---- 2.73 3.23
86 IROC/
Trans Am M5,A4 LG4 V8 9.5:1 5.0 (305) 165@4400 250@2000 4bbl 3.23 3.73 2.73 ----
86 IROC/
Trans Am M5 @L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4bbl HO 3.23 3.73 ---- ----
86 IROC/
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI ---- ---- 2.73 3.42
86 IROC A4 +L98 V8 9.5:1 5.7 (350) 220@4200 320@3200 TPI ---- ---- 3.27* ----


------------------
Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/

 

you guys say that the ta is rated at 190 my book says the 86 is rated at 210 now i noticed on tech page that there were no 305 tpi with borg warner 9 bolt my car got them with 2'77 posi gears

i think they gave iroc info not ta info

 

Nun, listen:

#1. I have NEVER seen the 86 305TPI TA hp rating anything other than 205 on paper. Ive seen lots of people say look at this website here or there, or their book says 190, but Ive never seen a scanned page either. About a year ago I went through this same thing, and I scanned what I had that has 205 all over it. I have NEVER seen or heard of 210, that is just wrong. 210 is the 85 rating. The book you have is incorrect. I have a firebird book myself, and there are errors in it too. The guy who wrote it even knows, he revised it about 3 years ago correcting some mistakes. Thats why I dont trust a single piece of info unless it came from the manufacturer themselves, too many slight mistakes and variables enter the equation otherwise.

#2. It doesnt matter anyway what you *think* the hp was rated at. I can guarantee you that stock, your car had the peanut cam. Theres no way it didnt lose power in relation to the 85. That means it isnt 210. This is also the same engine installed in the IROC, so logically it either has the same hp as the IROC, which GM says was 190, or 5hp less due to the intake difference which GM says the TA's lost 5 from the pathetic intake ducting in comparison to the IROC. This means the actual number should have been 185. Thats actually probably quite realistic as well.

In any case, if you are seeking documentation, go get something from GM and rely on that. If you are wondering what kinda power you are putting out for a baseline, either go dyno the car, or assume its 190 because theres no way its more than that, TA or not. Rest assured that the IROC and the TA didnt see different engines, that costs money and GM doesnt spend a dime they dont have to.

BTW, what is your 'book?' Seems everyone has their own that has entirely different information than someone else.

 

Also... FYI..the reason the 87's got rated a few more pony's over the 86's even though they had the exact same cam specs is that the 87 was a roller cam, and the 86's still had flat tappet. So that was probably why the 15hp diff.

 

the book is firebird pure excitement from pontiac by james m flammang and the auto editors of consumer guide

read it and see what the 86 tpi 305 is rated at 210 HP

 

My 86 T/A had a 305 TPI auto originally and had 2.77 posi and disc brakes. Didn't see that on my quick glance at the list, but the rating on my car were 210 for TPI, and 190 4BBL HO. I dont have any specific place were this has come fomr other than this is the values I have seen over and over again.

------------------
FOR SALE!!!!!!!!!!!!!!!
86 Trans Am 355 TPI Rebuilt 700R4 with Corvette servo, modified valve body, and a B&M Torque Converter (2000 rpm stall w/ lock up), 87 350 block bored .30 with new crank. Reworked 305 heads with 3-angle valve job. Added in the rebuild was an SLP TPI cam, BBK 58mm Throttle Body,MSD 6A, Hypertech Power Coil, 1.5 Crane roller tipped rocker arms, SLP Intake Runners and Port matching in upper intake including fully ported plenum, TPIS adjustable fuel pressure regulator @ 46psi, Hooker shorty style headers w/ Thermotech heat wrapping, Custom 3” exhaust with Flowmaster muffler and chrome quad tips, Hypertech Thermomaster Computer chip, K&N open element cone filter on modified MAF per TPIS specs, MSD Wires, removal of A/C hardware and added a 1LE firewall cover installed. Also there has been a PST front suspension kit with Hotchkis strut tower brace added. Soon to have Intrax lowering springs.
http://geocities.com/SunsetStrip/Garage/9548/kyle.html

Kills:
95 Talon TSI, 96 Probe GT, 91 T/A L98, 89 RS, 86 Mustang GT, 88 Mustang LX 5.0, 92 Thunderbird V8. couple or ricers that I think were Civics or Preludes not sure what year, 95 Celica GT-S, 94 Chevy 1/4 ton 350, one of those NASCAR F150's

The Third Gen Will Never be Forgotten

 

Hey Madmax, here is what I have scanned from the Firebird Redbook by Peter C. Sessler, (Motorbooks International) copyright 1997.

WTH?? Here is the link.... http://www.geocities.com/transam85tpi/images/redbook.jpg

[This message has been edited by Kevin Irving (edited March 13, 2001).]

[This message has been edited by Kevin Irving (edited March 13, 2001).]

[This message has been edited by Kevin Irving (edited March 14, 2001).]

[This message has been edited by Kevin Irving (edited March 14, 2001).]

 

Kevin, its a geos..ties thing... you have to use fp. now rather than www.
I think they tried to prevent linking, and someone was nice enough to find a loophole Thanks for the scan though, first time Ive ever seen something say 190 in print.

I find it interesting they say the hp in 86 was 190, and its 15 off 85, which would make it 205 in 85. What I have says 205 in 86, and 210 in 85. That also makes the difference between the IROC and TA 10hp, not the 5hp I have seen everywhere, meaning the TA should have only had 180 in 86, not 190.

Actually Im not confused... someone else is, and they are trying to confuse everyone else too.