i have a stock bottom end 89 mustang motor in my 87 bird. currently running stock e7 heads explorer intake and a b303 cam.
looking to upgrade tracked down a trick flow street heat intake for 400 bucks so that's what im going with..
probably going to go with the trick flow 170 series 61cc twisted wedge heads with 2.02 intake valves. and 1.7rr
my question is.... is there any issues with piston to valve?? I did a quick search on google and as usual cant get a straight answer on this..
so if anyone is running this set up any feed back would be appreciated
thanks
Should be just fine
But always double check
I swear I had around 3/8" of clearance on my tw 170 heads milled down to 54cc, stock HO cam, 0-deck block. Either way, tons of clearance. It barely touched the clay I put in a couple cylinders to test.
Mine was tested with a hydraulic lifter turned into a solid.
You should be fine but double check. That stock piston/cam/head combo has ben used numerous times by many people without issue.
Trick Flow states there are no clearance issues unless running something more than a Stage-2 cam... I've ran a set using their Stage-1 cam on '86 flat top HO pistons that were .003 out of the hole...
Oh wow I thought you said you had the GT40 heads on that thing. Must have been mistaken. If you carry out that plan and basically upgrade to what I have in the black car (basically what TurboCoupe50 has as well) - the TF top end setup, get ready for a real kick in the ass!!
What trans/gear are you running? With TW170 heads, a Street Heat manifold, and B303 cam you're going to want to run at least 3.73 gears, AOD or T5. If you have an AOD you're really going to want to put a stall converter in the AOD, something in the 2800-3200rpm range. Without it the car will be a dog off the line.
Thanks for the feedback guys. Paul.. just e7s with the explorer intake as of now. Car has 3.73 gears in and world class t5. Got rid of that horrible jasper aod and even got in outta my garage asap i hate thos trannys combined with jasper shotty work and it was junk right outta the create.
Actually upon more research in going with the twisted wedge track heat head (i like the upgraded valvetrain specs better) but still doing the street heat intake
Thanks again guy whats hp look like on that combo around 320??
Trick Flow always advertised the kit as making 360 at the crank. Might have been a +/- 10HP difference street heat/track heat intake....? The track heat one shifts the powerband further up in RPM's...not sure on the numbers. I've got the track heat intake and with 3.73s it seems to work well. Then again I like keeping it up there so the cutouts scream and everyone hates me :)
Most people with TW170 heads and a Trick Flow intake make around 350hp-ish. Only guys with custom cams and a better intake (Holley Systemax II, Trick Flow R) make more power. Either the Street or Track intake should work fine for you. With 3.73 gears you won't be spending a whole lot of time below 2500rpm anyway where all that magical low end torque lives. Another possibility is that you could send out your GT40 lower intake to someone like TMoss on the Corral to have it ported. It would cost half of what the Street Heat intake costs and flow just as well after porting.
I got the intake very cheap compared to a new one so um just going with it. Plus looks a lil cooler than a explorer intake haha.
But heres the real kicker of this build ive talked with a few ppl thst have done it so im gonna try it again.... hopefully running this thing on 19# lightning injectors (different spray tips then mustang) the ppl i deal with for tuning have done it b4. Hello hp/mpg lol
The computer doesn't really know or care what fuel injectors it has, it only controls how long they pulse.
24# injectors can be had out of any 460 at the junk yard. 19# injectors top out around 200hp and were a bit undersized for a mustang. If i was paying for a tune, id make sure my injector duty was under 80% for long life.
Injector Calculator:
http://www.witchhunter.com/injectorcalc1.php
Darren
If you go with TW170 heads run at least a 24lb injector.
Might end up doing 42# ones that way its supercharger ready thats the ending goal with this current motor till the other one gose from a SO 5.0 to a 347. That one will be set up to run twin 62mm turbos
If you are going to go that route get something like this so that the EEC can grow with the car.
http://www.diyautotune.com/catalog/megasquirtpnp-g2-eec4a8-for-8693-ford-mustang-50-p-524.html
By the time you get a stock mass air capable EEC, chip, multiple reburns of the chip, and dyno sessions you will be money ahead going this route. To make a person understand the stock EEC's processor power vs. the MegaSquirtPNP you have to think of it like the original Apple iPhone versus an iPhone 6 or a Vette versus a Chevette.
I have a 331 in my Coupe that is so much of a hybrid that without the SCT switch chip and the dyno tune on the A9L it would not run At all. I am going to the MegaSquirtPNP with dual wide band O2's. The learning curve will be a bit steep but I'm tired of having to depend on someone else to tune it and it never seems to quite be the way I think it could or should be.
The factory EEC can only compensate about 10% so as things fall out of parameter the EEC cannot compensate or learn new stuff. With an aging wiring harness and other aging electronics it's hard for the EEC to just keep up with the degregation of those components. Just gas having 10% ethanol the EEC is already having to compensate to the point of its limits.
Darren
Very interesting ill look into that thank you
looked into the megasquirt and its on the list of parts. it almost pays for itself very quickly when u change the setup often like I like to do. with head and intake combos and soon to be power adders.
I do agree on the learning curve but its deffinaly gonna be nice to tune the car to what I want it to do. watched a few vids on youtube already and It dosent look extremely hard to do..
thanks for suggesting that to me