Turbo it!!
Turbo it!!
Looks like the CR of a "I" headed Eta stroker is 8.3:1 or 8.4:1. That isn't as bad as I thought it would be. Heck a healthy skim on the head would bring that up a fair bit. The CR on a stock "I" is only 8.8:1 and the much lauded Seta pistons are only 8.5:1.
Do it and boost the snot out of it 
Adrian_Thompson wrote: Paging belteshazzar I’ve found the following in another 325eta thread right here on GRM posted by him in 09.” my superETA with 325i head made 155 hp and 162lbs of torque at the tires on a dynojet.” belteshazzer, if your out there what was you build spec?
stock SuperETA ('88 only) bottom end + complete 325is head/intake manifold + 19lb injectors + generic ebay chip + free flowing exhaust
ditchdigger wrote: Looks like the CR of a "I" headed Eta stroker is 8.3:1 or 8.4:1. That isn't as bad as I thought it would be. Heck a healthy skim on the head would bring that up a fair bit. The CR on a stock "I" is only 8.8:1 and the much lauded Seta pistons are only 8.5:1. Do it and boost the snot out of it
That is definitely worth doing with a turbo. That's alot higher than my Biturbo.
my first modification was to put an LSD 3.73 pumpkin under it. even as a stock ETA, that made it plenty fun to autocross. said combo would NOT bog down in second gear going around tight corners, and there was always just enough tach not to shift into 3rd.
Adrian_Thompson wrote:CLNSC3 wrote: 5.0/T5 swap. I'm working on an e36 right now, have everything but the car. Doing all my own work, besides exhaust fab, I will have spend just over $3,000 including the car....I've yet to see a practical successful 5.0 Ford swap written up into an E30, plenty for E36’s, but not an E30. Vorschlag did the Lsx swap, but that was just for the challenge. I’ve seen lots of 5.0 threads out there, but non complete and driving. I have seen a couple of pictures of running 5.0’s in E30’s but not with a write up. Also they all seem to lose a booster and go to manual brakes. Immaterial really as again, if I had the time and money for a V8 swap then I wouldn’t be interested in this car. Thoughts are caveman challenge type build, but not for the challenge.
Really? Wow, I guess there is a lot of internet hype out there. About 18 months ago I bought an e30 to do this swap in, bought the drivetrain, then got t-boned by a CRV the next day.
Now I am actually kinda of happy I decided to go with an e36 this time. I still want an e30, but solid examples are big money compared to their younger brothers.
My buddy had a 325es and he put a intake/exhaust/chip on it I believe and man that thing woke up. I remember it raised the redline I think, in addition to giving it a little more go juice. Wasn't fast by any means, but combined with suspension mods, etc that thing was a blast on mountain roads!
If I were to ever replace my M20, It would be with an LSX engine. 
Right now, my M20 was rebuilt by the previous owner before I got it last year. I added highflow injectors (Mustang V8 yellows), fleabay chip, free flowing exhaust without a cat and it is alive. Couple that with some Bilsteins/Racing Dynamics Springs, D-Force LTW's and RE-11's.. And I can't complain until the M20 blows..
Good Luck..
I still miss my old boy!
belteshazzar wrote: my first modification was to put an LSD 3.73 pumpkin under it. even as a stock ETA, that made it plenty fun to autocross. said combo would NOT bog down in second gear going around tight corners, and there was always just enough tach not to shift into 3rd.
How fast are you going? On the courses my region sets up, 2nd gear is simply not fast enough with a 3.73... I've been banging off the limiter at least once during every run I've done with my car. Unfortunately, I've come to really dislike autocrossing my E30... which is a problem since that was the #1 reason I bought it... 
leave the power the way it is, take it to a season of rallycross, and profit.
this is a stock ETA (no, not mine)
ditchdigger wrote: Looks like the CR of a "I" headed Eta stroker is 8.3:1 or 8.4:1. That isn't as bad as I thought it would be. Heck a healthy skim on the head would bring that up a fair bit. The CR on a stock "I" is only 8.8:1 and the much lauded Seta pistons are only 8.5:1. Do it and boost the snot out of it
That's a HIGHER CR than the stock motor in my car.
That's not that low, and that's perfect for big boost.
belteshazzar wrote:Adrian_Thompson wrote: Paging belteshazzar I’ve found the following in another 325eta thread right here on GRM posted by him in 09.” my superETA with 325i head made 155 hp and 162lbs of torque at the tires on a dynojet.” belteshazzer, if your out there what was you build spec?stock SuperETA ('88 only) bottom end + complete 325is head/intake manifold + 19lb injectors + generic ebay chip + free flowing exhaust
That is amazing, and with a C.R. that low you can swig a couple of beers, pee in the tank and it will still run like a raped ape.
I loved the M52B28 (with the OBDI intake stuff off an M50B25) in my E30. Way more torque and power compared to the M20 (i motor) than 300cc would suggest. The engines are quite reasonable, though the OBDI bits are I think a bit harder to come by at this point.
Besides, swapping out the school-bus-ratio steering rack is made sane by lifting the engine out anyhow...
Adrian_Thompson wrote:belteshazzar wrote:That is amazing, and with a C.R. that low you can swig a couple of beers, pee in the tank and it will still run like a raped ape.Adrian_Thompson wrote: Paging belteshazzar I’ve found the following in another 325eta thread right here on GRM posted by him in 09.” my superETA with 325i head made 155 hp and 162lbs of torque at the tires on a dynojet.” belteshazzer, if your out there what was you build spec?stock SuperETA ('88 only) bottom end + complete 325is head/intake manifold + 19lb injectors + generic ebay chip + free flowing exhaust
the SuperETA has unique pistons. they come with the same head casting as the 325i, right from the factory. So swapping a complete 325i top-end does not change the compression ratio from stock.
belteshazzar wrote:Adrian_Thompson wrote:the SuperETA has unique pistons. they come with the same head casting as the 325i, right from the factory. So swapping a complete 325i top-end does not change the compression ratio from stock.belteshazzar wrote:That is amazing, and with a C.R. that low you can swig a couple of beers, pee in the tank and it will still run like a raped ape.Adrian_Thompson wrote: Paging belteshazzar I’ve found the following in another 325eta thread right here on GRM posted by him in 09.” my superETA with 325i head made 155 hp and 162lbs of torque at the tires on a dynojet.” belteshazzer, if your out there what was you build spec?stock SuperETA ('88 only) bottom end + complete 325is head/intake manifold + 19lb injectors + generic ebay chip + free flowing exhaust
AAgghhh, that's counter to everything I've read on Bimmer Formus etc. Off to beat my head against the wall now!
Adrian_Thompson wrote:belteshazzar wrote:AAgghhh, that's counter to everything I've read on Bimmer Formus etc. Off to beat my head against the wall now!Adrian_Thompson wrote:the SuperETA has unique pistons. they come with the same head casting as the 325i, right from the factory. So swapping a complete 325i top-end does not change the compression ratio from stock.belteshazzar wrote:That is amazing, and with a C.R. that low you can swig a couple of beers, pee in the tank and it will still run like a raped ape.Adrian_Thompson wrote: Paging belteshazzar I’ve found the following in another 325eta thread right here on GRM posted by him in 09.” my superETA with 325i head made 155 hp and 162lbs of torque at the tires on a dynojet.” belteshazzer, if your out there what was you build spec?stock SuperETA ('88 only) bottom end + complete 325is head/intake manifold + 19lb injectors + generic ebay chip + free flowing exhaust
Isn't it nice when marque-specific forums.... have tons of inaccurate information on their own marque? I run into it quite often.
i can tell you for certain, the head casting on a stock SuperETA is the same as the 325i. i've had two.
i don't remember what the static compression ratio was, though it was listed in the owners manual. however, when i did compression test the engine, it was always around 160psi.
swapping a 325i top end is just a convenient way to get the springs/cam/intake manifold that you want all at once.
Well the conversation is now null and void. I went to look at the car At first it appeared perfect, but closer inspections showed major rust. Thanks for the inpute though.
http://grassrootsmotorsports.com/forum/200x-classifieds/mi-e30-325e-sedan-5-speed/49128/page1/
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