TIMMYS89GTA

iTrader: (28)

ok folks,I have been doing some searching and I believe my setup should work with no problems.
I have an 87 corvette alum. head 350 and running a sd setup in the car.
I read that the 91-92 tpi setups will work just fine on either because they both have 21 lb inj.
Someone that is ABSOLUTELY sure,please post and verify that.
Anyway,heres a couple pics of the car as of today.
The 730 ecm already has been prog. to remove the vats,egr and A.I.R. so I'm good there.

five7kid

iTrader: (14)

For the record, L98 injectors are 22 lb.

The MAF vs. SD issue isn't the injector size, but equipment. You just need to have all of the SD parts & sensors on the engine & TPI.

Hopefully you've addressed the oil pan/oil pump issues.

TIMMYS89GTA

iTrader: (28)

I did a search on here,and someone had posted that the 91-92 tpis both had 21lb. inj. instead of prev. 19(305) 22(350)
And my car is s/d already,just going with a alum. head corvette l98 instead of the 305.What are you talking about oilpan oil pump issues?

five7kid

iTrader: (14)

The Vette oil pan won't fit in a 3rd gen. Because the pan is different, the oil pump (pickup, I believe) is also different.

TIMMYS89GTA

iTrader: (28)

Oh,wasn't aware of that.Guess I'll be using the pan off my 305.
Anyway,got any input on the inj. part?I'm gonna try and search that thread again right now.

five7kid

iTrader: (14)

22 lb is all I've ever seen or heard of from the factory for L98's.

If you have a complete SD system, underhood and ECM, you should be good to go.

TIMMYS89GTA

iTrader: (28)

thanks,hope everything turns out for the better.
I'll post up after I get the car all back together.

TIMMYS89GTA

iTrader: (28)

ok,I have now pulled myself out of fantasy land and getting ready to order new inj. from FIC.
What size inj. would you rec. for a stock l98 w/alum. vette heads and also what cam?I plan on keeping it pretty much stock.
Also,my car already has no egr or smog pump so no issues there.
I've been searching here for hours and seem to only keep getting myself even more confused.
so can someone lead me in the right direction?

TIMMYS89GTA

iTrader: (28)

ok,c'mon. wheres the pros?
kevin91z,five7kid you guys around?
plan on getting the boschIII inj. from FIC and a afpr
oh yeah,forgot to mention that i'm also running hooker 2460's w/y-pipe and flowmaster catback w/no cat.

igotta355z28

iTrader: (1)

for the record i purchased a l98 from a 91 vette and bolted it into my 82 camaro just fine with no problems. The motor was completely stock, my buddies run a shop that buys wrecked vettes and parts them out this one was rolled, the motor still ran they called me up and i checked it out it ran great in the vette so i gave them 1000 bucks for it the 700r4, wiring harness and all weather computer (pretty good deal i think) and the next day they had it all pulled for me. i took it home and bolted it in with no problems and without changing a thing. I have heard that the oil pans dont fit b4 but mine did and im 99% sure it was completely stock for the record....

TIMMYS89GTA

iTrader: (28)

this oil pan is for 86-90 vettes(per Ecklers corvette) Looks to be diff. than my stocker

igotta355z28

iTrader: (1)

well my l98 was a 91 and u said that pan is for an 86-89? i dunno man im just sayin the one i got everything apeared to be stock and i was told it was all stock and i had no fitment problems...there are always rare weird things like this...i dunno o well...

TIMMYS89GTA

iTrader: (28)

Ok,parts on the way,hoping to be putting an eng. together this weekend.

TIMMYS89GTA

iTrader: (28)

Well,got bad news.All parts came in and started assembling the eng. this morning,and ran into a problem with my piston rings.
I got them installed onto the pistons just fine but,when I put one of the pistons in the ring compressor and go to tap it in it stops as soon as it hits the first oil ring.
I don't get it.I tried putting the old oil rings on and the piston went right in.
The new ones seem like they aren't compressing.Is it possible that I'm installing them incorrectly?
I followed the instr. that came w/them but they just plain don't fit!!
Any help out there on this???

five7kid

iTrader: (14)

Most likely you didn't get the ring compressor tight enough.

Check the rings in the cylinders off of the pistons. If you can't get them in without overlap, or they have zero gap, you've got the wrong rings for your cylinder diameter.

TIMMYS89GTA

iTrader: (28)

update!
been on the phone and turns out I got the wrong ring set sent to me.
New set on the way.
Trust me five7kid,my ring compressor was plenty tight enough!I actually held it in a vise since my hands were so oily!LOL!
The problem I had was only in the lower(oil control rings)
Holding the assembly in my hand with no ring compressor,the rings above & below the spacer ring had a huge gap that wouldn't even give any movement when I squeezed them by hand.
Anyway,thanks for the help so far.
I have a feeling I'm not out of the barn yet on this ride.
And thank you Kevin91Z for the input on my my v/s.

TIMMYS89GTA

iTrader: (28)

ok folks! I now have a completely assembled short block!
2; Now onto the heads

TIMMYS89GTA

iTrader: (28)

ok,heads are on now and valves are set.
Fitting this 91 intake onto these heads is a pain!
Hoping to make some more progress tomorrow!
No pics right now. I am beat!

TIMMYS89GTA

iTrader: (28)

Well,its finally coming together!This is yesterdays progress!

TIMMYS89GTA

iTrader: (28)

This is Todays progress!Actually looks like an engine again!
Yay!I get to install the wiring harness again!So much fun!LOL!

TigerVette

Looks like it's coming along really well. It'll be a nice upgrade from the 305.

TIMMYS89GTA

iTrader: (28)

you ain't joking!!I can't wait to get this car running again.Makes me sad looking at her this way but,she is being revived!
I spent so much time on paint and body work that this just had to be done!
I couldn't afford an LS engine so,this is what I had to work with!Not to bad
IMO.

1bad66ss

iTrader: (1)

Looks real good, I'm sure all of your work will pay off in the end. I'm thinking of doing a tpi swap myself, but it will be in a much older car.

hardtime19

i am doing the same thing but to a 86 corvette. i got the 90 L98 motor and had the same problem with the rings. I ended up getting rings from hastings and had no problems installing them. They cost a little more but well worth it. They only put this piston in 90 and 91 L98 vetts. the oil ring is very shallow. Cheep rings just wont hold up.
Good luck

TIMMYS89GTA

iTrader: (28)

And yet another set back for me!ARGH!!
I went to install the bracket for the alt.&p/s today and the bracket won't line up to the holes in the head!
I knew I shouldn't have used that water pump from my old 87 Iroc I had sitting in the box.It was new but,totally wrong for a serpentine belt setup!
Another lesson learned for me!LOL!
Picking new w/p up tommorow!

TIMMYS89GTA

iTrader: (28)

tommorrow is the day!
I'm determined to get her running!
I'm actually surprised that noone saw the difference in the eng. comp.
Shes got fresh paint!

TIMMYS89GTA

iTrader: (28)

well,everything is pretty much back together but!
She doesn't wanna start for some reason!The starter keeps binding up and I placed a shim in there before the sun went down and still is binding on the bendix.Oh well,tommorows another day.

Nater36

hows it going now?? im about to do the same thing myself cept with mass air and ill be looking for a new chip too.. btw no cam suggestions?!

TIMMYS89GTA

iTrader: (28)

still not running.I replaced the starter yesterday (tested bad) and new starter is in.Battery was dead so I hooked it to my charger yesterday evening and let it charge overnight.Tried it out today and nothing!!
Guess my charger decided to crap out on me and finish draining the batt. instead of charging it.It wouldn't even give a click from the starter when I turned the key.Instead acted as if there was no battery at all.I hooked a voltage meter to the batt,and had around 8 volts.
And yeah,I had no cam help or injector help.
I went with new 22lb inj. from FIC and picked up a 97 lt1 cam.

TIMMYS89GTA

iTrader: (28)

Finally!!!!!!!!!!!!!! ITS ALIVE!
And dang does this thing run sweet.

TIMMYS89GTA

iTrader: (28)

Thanks for all the support folks!
I finally got to drive her today!I don't roll if it isn't legal.
New tag/ins. as of today! Hoping to paint/install the hood and hinges tom.
but 32 degrees in the morning isn't very good painting weather.Hopefully I see at least 65 here in the afternoon!That way I can get her completely back to where she should be

TIMMYS89GTA

iTrader: (28)

well,I did get the underside of the hood painted today along with the hinges.
Back to work tom. so no updates til then.
BTW,I never did hear any input about the oil rings from any pros!
My guess is it was a metric vs. standard issue.

VAN454

Nice work, so are you happy with the way it runs?

ND4SPD86

iTrader: (1)

What kind of problems did you have putting a 90-92 SD TPI on the 87 Corvette engine? I might be buying an 87 Corvette engine for my 91 so i can drive before weather here get too bad.

TIMMYS89GTA

iTrader: (28)

OH YEAH!
----------
the only mechanical problem was fitting the lower int. to the early style heads.Other than that,the speed density setup bolted on as original and runs great so far!