You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact contact us.
E21, E30General discussion and technical help for 1975-1991 3 series cars.
User not setup in Rate My Car. Click here to set it up.
Your Ride: 1987 BMW 325 with a chevy V8
i dont really agree with you curtishead
if you buy all original parts they will just bolt right in no thinking involved
it took me 4 months to build my hot rod and i had to build everything with my own hands like a custom crossmember, swaybar, motor mounts, tranny crossmember, driveshaft, and
exhaust
i dont call wild modifications headlights, a wing, and some rims
While I might not agree with putting a V8 in an E30, I can commend the hard work it would take to complete a build like that. Still, do some research and find a BMW rear end that will handle the power. The M roadster/coupe had an S54 in 2001. Thats 330ish HP in the Z3 chassis. That might be the closet fit and power handling combination you can get for rear ends.
__________________
1970 BMW 2002
Driven by skill, not money
"Real BMW's have round tail lights"
User not setup in Rate My Car. Click here to set it up.
Your Ride: 87 bmw 325
question
Quote:
Originally Posted by sbcBMW305v8
hey my name is nick and im kind of new to the site
i drive a 1987 bmw 325
and im going to be dropin a 450 horse sbc into my car and i am wondering if the stock rear end is going to hold up because i hate breaking parts
Hey is the 305 small block the biggest engine you can fit in the car because I want to replace my 87 325 if how can I find that engine?
User not setup in Rate My Car. Click here to set it up.
Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
Wow, 17 year old kid building an SBC and hot rodding an e30. While I don't share your zeal for the project (BMWs should be all BMW) I do respect your ambition. What mods did you do to the engine? Hyperutechtic pistons, flat top? PM rods shot peened for strength? Running a hydraulic roller cam, electric water pump, 1:6 ratio roller rockers? You gonna juice it too? maybe a dry injection system? Bottom line, you're in for a HEAP of work and broken stuff to get it all to work. It can work, there's a guy at my school right now with an e36 and an ls1 in it, took him a while and a hell of a lot of electrical "fiddling" to make it reliable. I believe he is running the stock rear end and he hasn't detonated it so maybe you will get it to work. But as pointed out earlier, you destroy the weight balance of the car, change the suspension dynamics, your power steering gets tricky and wears out quickly because of the weight difference. But like all hot rods, it'll go like stink in a straight line, just depends on what you plan to do with it. Good Luck
User not setup in Rate My Car. Click here to set it up.
Your Ride: 87 bmw 325
Quote:
Originally Posted by Big Evil
Wow, 17 year old kid building an SBC and hot rodding an e30. While I don't share your zeal for the project (BMWs should be all BMW) I do respect your ambition. What mods did you do to the engine? Hyperutechtic pistons, flat top? PM rods shot peened for strength? Running a hydraulic roller cam, electric water pump, 1:6 ratio roller rockers? You gonna juice it too? maybe a dry injection system? Bottom line, you're in for a HEAP of work and broken stuff to get it all to work. It can work, there's a guy at my school right now with an e36 and an ls1 in it, took him a while and a hell of a lot of electrical "fiddling" to make it reliable. I believe he is running the stock rear end and he hasn't detonated it so maybe you will get it to work. But as pointed out earlier, you destroy the weight balance of the car, change the suspension dynamics, your power steering gets tricky and wears out quickly because of the weight difference. But like all hot rods, it'll go like stink in a straight line, just depends on what you plan to do with it. Good Luck
Well all I've done is restore the car when I got it it was just rusty mess nd now its running like it should completely stock though and I just wanted to get more out
ot my car
User not setup in Rate My Car. Click here to set it up.
Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
At the risk of sounding like a commercial, if your as into this car stuff as it sounds like you are, when you're done with HS you may want to look into UTI or something. That's where I'm at now (close to graduation actually), and the hot rod program alone was worth the price of admission. Not to mention you'd have an automatic "in" with the hot rod instructors as you have one yourself. List of mods on my last SBC with turned 468hp and 543ft/lb torque, Scat forged crank, pm rods shot peened, hyperu dish pistons, chrome rings. .015 thousandths oil passage clearances, Vortec heads, long tube headers, edlebrock tunnel ram intake w/dual 750 CFM double pumpers and 2, 75 shots of nitrous. I wouldn't recommend the exact same set up for street use but you certainly learn the whats and whys of hot rodding and how to build a solid reliable engine for any number of uses. Looking at the pic of the engine bay however I can recommend a few things that will bam it up a notch. Your intake I'm not sure of its make but an edlebrock stealth dual plane is a good start along with a set of rhs vortec heads, to keep the flow going you're going to have to find a set of long tube headers that'll fit the engine bay. Carb should be no less than a 750cfm (bigger IS better). Going to a tunnel ram with dual carbs is always great for drags but sucks for idling and driving around town, however a velocity stack on top of the carb with a tall filter is usually good for 5 or 6hp gain. Same with the water pump, get an electric and run only the alternator off the engine, electric fans on the radiator. Thats good for another 8-10hp. A healthy roller cam with no more than about 70 degrees of overlap and some 1.6:1 ratio roller tip rockers and you got yourself a tight dependable uber smooth and rather powerful v8 to push you around.