I have the Petit sub frame with the 20B and i am having a problem with hood clearance already. The front intake runner is hitting one of the cross members on the hood. It is not that bad and can be cut out or dented in but i was planning on getting a new hood any way. I just dont want to orde in a $1500 hood and find out that i will have the same clearance problems!

I am interested in either an original scoot hood or the RE Amemiya AD-9.

Does any one know of any of the knock offs fitting better? That was told to me once but sounds a little shady!

I haven't decided on where to buy the scoot hood if i chose that route. Any suggestions would be great.

I dont want to make a custom intake! I would if i was going per. port!

 

What motor mounts are you using? I have a little less than 1/2" clearance. I'm using 2nd gen Mazdaspeed mounts which I had to trim the metal just a bit to fit the subframe.

 

I am using the 3rd gen mounts. I had to trim the little **** off to get them to fit flat. Are the 2nd gen mounts any lower profile? I dont think that would work any way because the steering rack is already into the oil pan. I still have to put a dent into it were the powersteering fitting exits out of the top of the rack!

 

I am considering getting a set of 3rd gen mazda speed mounts. Are they stronger?
Also has any one rigged up a safety stop incase the motor mount breaks and seperates? The stock stainless clamps wont fit on the 20B brackets!

 

yes im interested too... anyone?

 

The steering rack just clears the 90 deg. fitting on mine w/o modification.
Did you rotate yor rack and pinion forward? The last u-joint on the steering shaft should be allmost straight. The 2nd Gen mazdaspeed mounts are about 1/4 - 3/8" shorter than 3rd gen, and are a hell of alot cheaper.

 

My oil pan is on top of the 90 deg. fitting. I even grinded it down so it is flush with the fitting size. The only thing left for me to do is take a hammer to the oil pan. I didn't hook up the steering link yet to see were that lays. I could lower the motor at leats 3/8" except for that fitting on the steering rack. I am going to pull the oil pan and see how much clearance is there. I am considering a custom alum. pan if there is room. Any way, good luck with your project and if you find any info, please share! I am in Western Pennsylvania and run a performance shop but dont specialize in rotary however by the time i am done, who knows!

 

How could i rotate the rack forward. When you bolt the rack in place, it pretty much centers itself! The petit subframe is rotated a little already! I have one of his newest sub frames which is a complete new fabed unit, not a modified stock sub frame!

 

how much was the subframe? i need to buy one in the next couple months! do they still do the core or core charge? thanks, heath

 

The is plenty of clearance in the pan. You could allmost remove the front hump. The oil pump pickup tube just protrudes a little into the hump. Maybe Pettit changed the design a little. If you need to gain a little height with the 2nd gen mounts you could add a couple of fender washers to gain a bit

 

The frame is around $1400 i think. Let me know if you need one, i might decide to do the setup from Acosta racing! They somehow use the stock frame and alter the engine mounts and oil pan!
Since the petit frame is an all new frame, there is no core charge or exchange.

 

i havent pulled the pan yet but if IronMdnx is right. I will have no problem custom making a new oil pan and using what i have. A thicker oil pan flange might help hold things together a little better as well! (twist factor)

 

From what I understand, they use the Fd rear plate and Fd mounts. The engine would have to be rebuilt so the ports would match because of the differances between the two engines. Also the UIM would have to be shortened for clearance.

 

does the 1400 include the modified spindles? i WILL be buying a pettit subframe/spindles soon so if you decide to go with a different solution let me know. heath

 

Petit does not do the spindles any more. Safety issues to my knowledge! Cam from petit says he is working on something to lower the tie rod ends down using the stock spindles. He probably has them done by now but i dont have them yet! I will let you know about the frame if i am changing my setup or not!

 

Don't mean to high jack your thread but I just spoke with Jeff @ Pettit and he quoted me $1650 for the subframe w/o the spindles. I am sell'ing a subframe and bolt-on bumpsteer kit for $1700 with a core. You can see pics of it on my thead named "20b subframe and bolt-on bumpsteer kit"

 

20B 3rd Gen: can you answer some questions i have about you kit in the thread you have? i want to know what the difference is between yours and pettits.

AutoIllusions: so you bought the subframe without a way to correct for bumpsteer??? were you planning on driving it like that?

 

funny its wierd cause i have pettit subframe and it clears the hood (bearly )but clears it i did have to grind a bit off the fitting from the power steering rack and put a small dent in the oil pan but hey it fits

 

I am not positive but i am considering that the newest style subframe like the one i have, sits the motor between 1/4" and 1/2" higher than the modified stock version. Non the less, i am still in search of an aftermarket hood that has more clearance around the intake runners! (not less with a vent in the way or something protuding down into the engine bay)

Any one have any suggestions on the hood fitment of the RE AD-9 or the Scoot hood?

 

dude wich frame do you have ...is it the gray one (powder coated) i have the new one and it fits ....have pics ....if its other hood you want ..what you should look out for is alternator clearance thats the sob thats gonna get you

 

gray yes, powder coated ? I dont think so! on the stock hood, my alternator doesn't even come close to clearing, do you mean with aftermarket hood alternator clearance becomes a problem?

I also have pics and the hood wont close! it is hitting one of the ribs on the hood! I am sure i could dent it in or cut it out but since i am considering a new hood i didn't bother!

 

are you shure it should fit ...have you spoken to cam ..i had the same problem ....turned out i had to grind the p/s rack fitting (its pretty thick) put a small dent in the oil pan to clear the fitting ..and also the clamp that holds the steering rack on the driver side i had to cut off about a 1/4 inch for clearance ....also loosen the power plant frame if connected it will help the engine lean back since it being longer than the 13b it will sit differentthan 20b

 

pretty bad design imho if you have to do all that for a subframe with its pricetag...

 

Geez, sounds like too much issue.. I just dropped off my intake manifold to Garfinkle and he's going to shorten my LIM about 1 to 1.5 inches.. Hope that's going to help with my clearance issue.