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$200.00 wrecked 87 Z28
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TSHACK
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Joined: 03 Dec 2007
Posts: 414
Location: NOR CAL
24533.64 points



PostPosted: Thu Jan 17, 2008 1:20 am    Post subject: $200.00 wrecked 87 Z28 Reply with quote

Yep Thats what I paid for the complete car today.It was hit on the left rear behind the tire. It even has pretty new tires. Picts will fallow. I'm looking on the net for info but my dial up is so f_____ing slow. what can any one tell me about it. Some one said certain years had better cams. Vin # 1G1FP21F2HN.
Help please.

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squeeezer
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Location: new richmond WI
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1991 Chevrolet Camaro

PostPosted: Thu Jan 17, 2008 11:21 am    Post subject: Reply with quote

89 was best year for everything including the cam
far from a performance cam
maybe a street rodder would care
if it has 4 wheel disc brakes its a plus=borg warner rear end too
vin 8 =350
vin f =305
the motor is worthless but the tpi system is all the same the only difference is the injectors
ithink the difference is 19 lb vs 22 or 24 lb
the trans if its a 5 speed its a world class t5....or 77mm .....still a medium duty trans at best...but a world class brings you more money
if its a auto it will be stronger than the t5
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TSHACK
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PostPosted: Fri Jan 18, 2008 5:21 am    Post subject: Reply with quote

Squeezer Do you know what engine code the 89 cam would come from Cam specs. Do you think that cam would that be too much cam for a 305? Any possible smog problem ? It seems my youngest
Has a gleem in his eyes for it. Should be a good car for him @ 17 1/2 years old, as it is when straight agian.

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squeeezer
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1991 Chevrolet Camaro

PostPosted: Fri Jan 18, 2008 7:37 am    Post subject: Reply with quote

TSHACK wrote:
Squeezer Do you know what engine code the 89 cam would come from Cam specs. Do you think that cam would that be too much cam for a 305? Any possible smog problem ? It seems my youngest
Has a gleem in his eyes for it. Should be a good car for him @ 17 1/2 years old, as it is when straight agian.






i do not know that much detail with the engine code
im sure it can be looked up though
im sure you can use it in a 305 .....i would just get an aftermarket
the 89 cam is not much bigger than other years and i believe 88 was the same too
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TSHACK
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PostPosted: Fri Jan 18, 2008 1:02 pm    Post subject: Reply with quote

What about this cam it's the ZZ4, Think it would need a chip, headers & maybe a higher stall
Duration @ 0.050" Lift: 208/221
Lift: .474"/.510"
Lobe Separation: 112

Type: Hydraulic roller tappet

also found a comp cams CS 262H R12
duration at 050" in 206 ex 210
lift In. .450" Ex. .480 lobe sep 112
I think the comp cams would be better, For a kids daily driver. I wonder if it would need a chip?

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TSHACK
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PostPosted: Sat Jan 19, 2008 11:47 am    Post subject: Reply with quote

Is anyone on here a guru no tunning up the TPI units?
Does any one know if the air foils, That bolt in to the front of the butter fly unit really help out, I found an old mag article that said they do, but I don't think those are not the most bias sources on if some thing works in the real world on not.

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Big Dave
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PostPosted: Sat Jan 19, 2008 2:46 pm    Post subject: Reply with quote

TPI is volume restriced (small tubes) and those tubes are long to build torque below 4,000 RPM. These motors respond to better heads and cam (aftermarket for both not GM) but it will never make the power of the LT-1 or LT-4 motor that replaced it (which was 330 net horse out of a 350). Cool factor is high but I wouldn't buy anything new for this motor. Look on e-Bay for good used manifold bases and larger tubes from Edelbrock and others, Need a bigger throttle plate, and ait horns, etc.

Big Dave
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TSHACK
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PostPosted: Sun Jan 20, 2008 2:51 am    Post subject: Reply with quote

B.D. which ait horn? the cams I'm looking at are on ebay. I've been pricing new hydraulic roller lifters. I get asked why change lifters, I't seems some people Think you can reuse roller lifters on different a cam! That seems wrong to me. Who's off on that one, Me or the guys saying it's okay to reuse roller lifters.
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Last edited by TSHACK on Mon Jan 21, 2008 12:24 am; edited 1 time in total
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jeep_406
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1972 Chevrolet Nova

PostPosted: Sun Jan 20, 2008 8:16 am    Post subject: Reply with quote

That's one of the nice things about roller cam setups. As long as the lifters are in good shape they can be reused with a new cam. One thing I would really consider is changing the valve springs. A bigger cam will probably need more spring pressure. Always check to make sure the ones you have have not lost pressure.
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squeeezer
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1991 Chevrolet Camaro

PostPosted: Mon Jan 21, 2008 12:23 am    Post subject: Reply with quote

the base intake is the biggest restriction
so if you replace that whats next???????

the runners WILL outflow the stock heads
so dont replace them untill you replaced cam /heads etc
the upper plenumn will always benefit from porting (you would have to see for yourself how rediculous it looks in there)

now before you go too far you will only still have a 5500 - 6000 rpm MAX motor

its better to just replace the whole setup with a cotrell mini ram
which myron came out with before the lt1 came out

or get the holley unit......its cheaper

both will net you 100hp with a mild cam and port work on even stock heads=saw it with my own eyes

still this is alot of money to invest into a tpi motor
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TSHACK
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PostPosted: Mon Jan 21, 2008 12:34 am    Post subject: Reply with quote

Could I get around 250 -275 H.p. from this 305, With a air foil in the intake, the comp cams CH 262 R12 cam, a stage 2 chip install & headers ?
Do these chips really work as the adds say.

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squeeezer
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1991 Chevrolet Camaro

PostPosted: Mon Jan 21, 2008 12:52 am    Post subject: Reply with quote

talk to the guys at tpis they really know their stuff
and they are open about it too

my guess is yes it should not be a problem

a buddy of mine did a stock rebuild on a 350 tpi mild tpis cam light port on the heads and heavy port on the plenumn

even with the 5000 restriction it still made 290 horse at the wheels
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TSHACK
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PostPosted: Sun Jan 27, 2008 11:14 pm    Post subject: Reply with quote

I was wondering is the 5000 rpm limit just from the induction system or is it in the computer also. The guy at T.P.I.S. wouldn't go in to things too much, He said to start with there books so there on the way. Thanks for the tip Squeezer.
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squeeezer
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1991 Chevrolet Camaro

PostPosted: Mon Jan 28, 2008 1:13 am    Post subject: Reply with quote

im not 100% on tpi cars but the tbi cars were governed by mph not rpm

if i had to guess id say the same for tpi

you can physically turn the tpi motors to 6000 they just quit at 5000 due to the induction
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TSHACK
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PostPosted: Mon Jan 28, 2008 2:48 am    Post subject: Reply with quote

Could that mph limit by eliminated with a chip mod, on the tbi motors?
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